Safety data sheet documentation for n-hexane (CAS 110-54-3), compiled to REACH Annex II with classification read against the harmonised entry in CLP Annex VI (H225, H361f, H304, H336). Two options: a working draft sent by e-mail immediately, or a signed card issued within 72 hours of complete input. The item supplied is a document — MolGod.org does not sell, supply or ship chemical substances.
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Section 9 — physicochemical properties: 14 of 22 established.
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Identity CAS · EC · IUPAC · synonyms · molecular formula · molecular weight
Structure 2D · 3D · SMILES · InChI · InChIKey
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sources.txt — every citation with the date it was read.
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3D model Hexane, CAS 110-54-3, molecular formula C6H14, molar mass 86.18 g/mol
Data transcribed from regulatory registers and technical literature, with the source and edition stated. It does not replace the supplier's safety data sheet. Fields without a recorded source are marked as such.
📊 Physicochemical data — CAS 110-54-3
📊Physicochemical properties
Quick Reference
Formula:C6H14
MW:86.18 g/mol
CAS:110-54-3
Appearance:Liquid
Odour:Gasoline-like odor
Detailed Properties
Supplements the “Physical & Chemical Properties (DB)” table below — values already shown there are not repeated.
Property
Value
Unit
Conditions
Source
Refractive Index (nD)
1.3749
20 °C, D-line
Reid, Prausnitz, Poling 4th ed. (1987)
🔬 Advanced Properties
Chemical Identifiers
SMILES:CCCCCC
Data sources:
Reid, Prausnitz, Poling 4th ed. (1987) (ISBN 9780070517998)
Last updated: 2026-08-25
📐Physical & Chemical Properties (DB)
22 fields MolGod Score: Primary
DECHEMA, PTB, and BAM. CHEMSAFE - Database of Evaluated Safety Characteristics for the Avoidance of Explosions. Frankfurt am Main: DECHEMA e.V.; Braunschweig/Berlin: Physikalisch-Technische Bundesanstalt and Bundesanstalt fur Materialforschung und -prufung. ↗
applies to: Melting point · Boiling point · Density (ρ)
NIST. Chemistry WebBook, SRD 69. National Institute of Standards and Technology. ↗
applies to: Melting point · Boiling point
Sangster, J. "Octanol-Water Partition Coefficients of Simple Organic Compounds." Journal of Physical and Chemical Reference Data 18, no. 3 (1989): 1111-1229. ↗
applies to: logP (octanol/water)
Physicochemical values are derived from the independent, peer-reviewed sources listed above.
PubChem. National Center for Biotechnology Information (NIH/NLM), chemical compound database. ↗
applies to: Molecular formula · Molecular weight · LogP (lipophilicity) · IUPAC name · SMILES · InChIKey
DECHEMA, PTB, and BAM. CHEMSAFE - Database of Evaluated Safety Characteristics for the Avoidance of Explosions. Frankfurt am Main: DECHEMA e.V.; Braunschweig/Berlin: Physikalisch-Technische Bundesanstalt and Bundesanstalt fur Materialforschung und -prufung. ↗
applies to: Melting point · Boiling point · Density
NIST. Chemistry WebBook, SRD 69. National Institute of Standards and Technology. ↗
applies to: Melting point · Boiling point
et al.. (2026). "Comparative metabolic profiling, enzyme inhibitory activities, and in-silico analysis of the hexane extract and the hydrodistilled oil of Boswellia serrata.". https://doi.org/10.1371/
et al.. (2026). "Extraction of Phospholipids From Crude Rapeseed Oil by n-Hexane/Alcohol System: Effects of Solvent Composition on Extraction Performance and Oil Quality.". https://doi.org/10.1002/fsn
et al.. (2026). "Diastereoselective Cyclopropanation with Secondary Diazoacetamides to Access endo-Azabicyclo[3.1.0]hexane-6-carboxamides.". https://doi.org/10.1021/acs.orglett.6c00392
et al.. (2026). "Comparative chemical and biological study of essential oils and n-hexane extracts of Thymus vulgaris and Thymus serpyllum (Lamiaceae).". https://doi.org/10.1038/s41598-025-33660-w
et al.. (2026). "Antioxidant activities and toxicity of dichloromethane and n-hexane extracts of Annona squamosa L. leaves.". https://doi.org/10.4103/japtr.japtr_231_25
et al.. (2026). "Hexane extract of Plumbago europaea L. aerial parts: phytochemical screening and antibacterial activity.". https://doi.org/10.1039/d5ra07370g
et al.. (2026). "In silico anticancer, antioxidant and anti-inflammatory study on GC-MS-based profiling of chloroform and hexane extracts of Erigeron multiradiatus.". https://doi.org/10.1007/s40203-02
et al.. (2025). "Confined growth of UiO-66 into ultrahigh-loading membranes for efficient hexane isomer separation.". https://doi.org/10.1039/d5sc04212g
db:Europe PMC
et al.. (2026). "Comparative metabolic profiling, enzyme inhibitory activities, and in-silico analysis of the hexane extract and the hydrodistilled oil of Boswellia serrata.". https://doi.org/10.1371/journal.pone.0348178 →
db:Europe PMC
et al.. (2026). "Extraction of Phospholipids From Crude Rapeseed Oil by n-Hexane/Alcohol System: Effects of Solvent Composition on Extraction Performance and Oil Quality.". https://doi.org/10.1002/fsn3.71866 →
db:Europe PMC
et al.. (2026). "Diastereoselective Cyclopropanation with Secondary Diazoacetamides to Access endo-Azabicyclo[3.1.0]hexane-6-carboxamides.". https://doi.org/10.1021/acs.orglett.6c00392 →
db:Europe PMC
et al.. (2026). "Comparative chemical and biological study of essential oils and n-hexane extracts of Thymus vulgaris and Thymus serpyllum (Lamiaceae).". https://doi.org/10.1038/s41598-025-33660-w →
db:Europe PMC
et al.. (2026). "Antioxidant activities and toxicity of dichloromethane and n-hexane extracts of Annona squamosa L. leaves.". https://doi.org/10.4103/japtr.japtr_231_25 →
db:Europe PMC
et al.. (2026). "Hexane extract of Plumbago europaea L. aerial parts: phytochemical screening and antibacterial activity.". https://doi.org/10.1039/d5ra07370g →
db:Europe PMC
et al.. (2026). "In silico anticancer, antioxidant and anti-inflammatory study on GC-MS-based profiling of chloroform and hexane extracts of Erigeron multiradiatus.". https://doi.org/10.1007/s40203-026-00645-0 →
db:Europe PMC
et al.. (2025). "Confined growth of UiO-66 into ultrahigh-loading membranes for efficient hexane isomer separation.". https://doi.org/10.1039/d5sc04212g →
db:Europe PMC
et al.. (2025). "High-Pressure Phase Behavior of α-Olefin + n-Hexane + Ethylene/1-Octene Copolymer Systems: Experimental Study and Modeling.". https://doi.org/10.3390/polym18010064 →
db:Europe PMC
et al.. (2024). "Assessment of CPME as Sustainable Low VOC Alternative to Hexane: Optimization of Extraction Efficiency and Bioactive Compound Yield from Fenugreek Seed Oil Using Computational and Experimental Methods.". https://doi.org/10.3390/foods13233899 →
db:openalex
Aleksandr Denisenko, Pavel Garbuz, Nataliya M. Voloshchuk et al.. (2023). "2-Oxabicyclo[2.1.1]hexanes as saturated bioisosteres of the ortho-substituted phenyl ring". Nature Chemistry. https://doi.org/10.1038/s41557-023-01222-0 →
db:openalex
Christian Cravotto, Anne‐Sylvie Fabiano‐Tixier, Ombéline Claux et al.. (2022). "Towards Substitution of Hexane as Extraction Solvent of Food Products and Ingredients with No Regrets". Foods. https://doi.org/10.3390/foods11213412 →
db:pubmed
Api AM, Belsito D, Botelho D et al.. (2022). "RIFM fragrance ingredient safety assessment, n-hexane, CAS Registry Number 110-54-3.". Food and chemical toxicology : an international journal published for the British Industrial Biological Research Association. https://doi.org/10.1016/j.fct.2022.112973 →
db:openalex
Van‐Dung Mai, Sera Shin, Dai-Soo Lee et al.. (2019). "Thermal Healing, Reshaping and Ecofriendly Recycling of Epoxy Resin Crosslinked with Schiff Base of Vanillin and Hexane-1,6-Diamine". Polymers. https://doi.org/10.3390/polym11020293 →
db:openalex
Songjie Yu, Adam Noble, Robin B. Bedford et al.. (2019). "Methylenespiro[2.3]hexanes via Nickel-Catalyzed Cyclopropanations with [1.1.1]Propellane". Journal of the American Chemical Society. https://doi.org/10.1021/jacs.9b10689 →
db:openalex
Jana Pastvová, Dalibor Kaucký, Jaroslava Morávková et al.. (2017). "Effect of Enhanced Accessibility of Acid Sites in Micromesoporous Mordenite Zeolites on Hydroisomerization of n-Hexane". ACS Catalysis. https://doi.org/10.1021/acscatal.7b01696 →
db:openalex
Daniel A. Paterson, Min Gao, Young‐Ki Kim et al.. (2016). "Understanding the twist-bend nematic phase: the characterisation of 1-(4-cyanobiphenyl-4′-yloxy)-6-(4-cyanobiphenyl-4′-yl)hexane (CB6OCB) and comparison with CB7CB". Soft Matter. https://doi.org/10.1039/c6sm00537c →
db:openalex
Hiroki Konno, Takuya Okamura, Takahito Kawahara et al.. (2012). "Kinetics of n-hexane cracking over ZSM-5 zeolites – Effect of crystal size on effectiveness factor and catalyst lifetime". Chemical Engineering Journal. https://doi.org/10.1016/j.cej.2012.06.157 →
db:openalex
June Dunnuck. (1991). "NTP technical report on the toxicity studies of of n-Hexane in B6C3F1 Mice (Inhalation Studies) (CAS No. 110-54-3).". PubMed.
Regulatory status of the substance
This substance is subject to regulatory requirements: hazardous waste management (BDO — national rule, Poland); transport of dangerous goods (ADR/RID/IMDG). Details in the \"Regulatory Status (REACH/ECHA/CLP)\" section and on the SDS. Regulatory information — does not restrict purchase in this store.
🧮 Stoichiometry Calculator
🧪 Chemical Data
CAS Number
110-54-3
Molecular formula
C6H14
Molar mass
86.18 g/mol
IUPAC name (EN)
hexane
SMILES
CCCCCC
InChIKey
VLKZOEOYAKHREP-UHFFFAOYSA-N
📚 Related literature (20 articles)
Matched automatically from public bibliographic databases by text similarity. Not curated for this substance, and not part of the safety data sheet.
Api AM, Belsito D, Botelho D et al. · (2022) · Food and chemical toxicology : an international journal published for the British Industrial Biological Research Association
PubChem. National Center for Biotechnology Information (NIH/NLM), chemical compound database. ↗
applies to: PubChem CID · InChIKey · InChI · SMILES
ECHA. EC Inventory — EINECS, ELINCS, NLP and List Numbers assigned under REACH. Helsinki: European Chemicals Agency. ↗
applies to: EC Number
ChEMBL. European Bioinformatics Institute (EMBL-EBI), bioactivity database. ↗
applies to: ChEMBL
ChemSpider. Royal Society of Chemistry, chemical structure database. ↗
applies to: ChemSpider
📡 Spectroscopy — CAS 110-54-3
NMR spectroscopy — source records
Earlier NMR results on this page remain available: Live Spectra (NMRShiftDB card) and NMR Predictor (literature table).
Structure identity: VLKZOEOYAKHREP-UHFFFAOYSA-N
For each record: MolGod’s status line, then the source record (as retrieved by MolGod), then MolGod’s own checks.
NMR deposited as experimental — measurement details incomplete
The source lists these spectra as experimental but does not report all measurement details; each spectrum states what is missing. Chemical shifts below come from the source record and are not reconstructed.
¹³C NMR
¹³C NMR — Experimental (measured); not reported by the source: solvent, temperature, spectrometer frequency — nmrshiftdb2:spectrum:10038352
δ (ppm)
Assignment (atoms)
Multiplicity
Assignment quality
13.5
C5 C6
Q
group
22.7
C3 C4
T
group
31.7
C1 C2
T
group
Values taken by the source from a reference book (secondary source).
Source
nmrshiftdb2
Spectrum ID
10038352
Solvent
not reported by the source
Temperature (K)
not reported by the source
Frequency (MHz)
not reported by the source
Publication
New York Thieme Verlag Stefan Berger; S. Braun; H.-O. Kalinowski 13-C-NMR-Spektroskopie 1984
Method
Source measurement type: not declared
Retrieved
2026-09-30T01:44:10Z
MolGod verification
experimental candidate by rule NMR-MEASCALC-1
Assignments
group 3
Calculated / predicted NMR — not experimental measurements
Values below are calculated, not measured.
¹³C NMR
¹³C NMR — Predicted by ACD/Labs C+H NMR Predictors and DB, 2020.1.0 (calculated, not measured) — nmrshiftdb2:spectrum:60021532
δ (ppm)
Assignment (atoms)
Multiplicity
Assignment quality
14.17
C5 C6
Q
group
22.99
C3 C4
T
group
32.19
C1 C2
T
group
Source
nmrshiftdb2
Spectrum ID
60021532
Solvent
not reported by the source
Temperature (K)
not reported by the source
Frequency (MHz)
not reported by the source
Publication
not reported by the source
Method
Source method: ACD/Labs C+H NMR Predictors and DB, 2020.1.0 (calculated)
Retrieved
2026-09-30T01:44:10Z
MolGod verification
calculated (prediction) by rule NMR-MEASCALC-1
Assignments
group 3
¹³C NMR — Predicted by HOSE code using nmrshiftdb2 data (calculated, not measured) — nmrshiftdb2:spectrum:70167860
δ (ppm)
Assignment (atoms)
Multiplicity
Assignment quality
13.5
C5 C6
Q
group
22.7
C3 C4
T
group
31.7
C1 C2
T
group
Source
nmrshiftdb2
Spectrum ID
70167860
Solvent
not reported by the source
Temperature (K)
not reported by the source
Frequency (MHz)
not reported by the source
Publication
not reported by the source
Method
Source method: HOSE code using nmrshiftdb2 data (calculated)
Retrieved
2026-09-30T01:44:10Z
MolGod verification
calculated (prediction) by rule NMR-MEASCALC-1
Assignments
group 3
¹H NMR
No source record listed in this panel (NOT_FOUND).
Symmetry-equivalent atom groups (MolGod, from the three-dimensional structure)
National Institute of Standards and Technology. 2024. "NIST Chemistry WebBook, SRD 69." Gaithersburg, MD: NIST. Accessed 2025-01-01. ↗
Spectral Database for Organic Structure Determination (SDBS). 2024. National Institute of Advanced Industrial Science and Technology (AIST), Japan. Accessed 2025-01-01. ↗
Ulrich, Eldon L., Hideo Akutsu, John F. Doreleijers, Yoko Harano, Yannis E. Ioannidis, Jundong Lin, Miron Livny, et al. 2008. "BioMagResBank." Nucleic Acids Research 36 (D1): D402–D408. [DOI ↗]
Horai, Hisayuki, Masanori Arita, Shigehiko Kanaya, Yoshito Nihei, Tasuku Ikeda, Kazuhiro Suwa, Yuya Ojima, et al. 2010. "MassBank: A Public Repository for Sharing Mass Spectral Data for Life Sciences." Journal of Mass Spectrometry 45 (7): 703–714. [DOI ↗]
Linstrom, P.J., and W.G. Mallard, eds. 2024. NIST Chemistry WebBook, NIST Standard Reference Database Number 69. Gaithersburg, MD: National Institute of Standards and Technology. ↗
McDonald, M. Shane, Mike McAvoy, and Ajit Bhalerao. 1988. "JCAMP-DX: A Standard Form for Exchange of Infrared Spectra in Computer Readable Form." Applied Spectroscopy 42 (1): 151–162. [DOI ↗]
PubChem. 2024. "PubChem Compound Database." National Library of Medicine, National Institutes of Health. Accessed 2025-01-01. ↗
Spectra are fetched on demand from 9 sources. Each spectrum is stored in our database — the next time it is opened there are zero requests to the external API. Download JCAMP-DX / CSV / PNG for every spectrum without searching.
Type of data: Predicted (calculated by nmrshiftdb2, not measured) — inferred: the source file carries no deposited measurement Basis: the file returned by the NMRShiftDB search-or-predict service is a JCAMP-DX LINK block with spectrometer frequency 0, and its values match no deposited NMRShiftDB spectrum of this compound on record at MolGod.
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🔗 Source
About the downloads (Type of data: Predicted (calculated by nmrshiftdb2, not measured) — inferred: the source file carries no deposited measurement) JCAMP: the NMRShiftDB file as received (JCAMP-DX 5.01 text). It is a peak list: chemical shift in ppm. MolGod adds header lines stating the type of data; the values are unchanged. CSV: the same peak list in two columns. The second column repeats the shift value; it is not a signal intensity. Lines starting with # state the type of data. PNG: a picture of the plot above, with the type of data written on it. Use: where signals are expected or were reported (chemical shift positions). Not included or guaranteed: intensities, multiplicities, coupling constants, line shapes, and solvent or temperature unless stated. A predicted list is not a measurement and cannot serve as a reference spectrum for identity or purity testing. Downloads become active after Show.
Data is fetched once (JCAMP-DX parser) and stored in the plugin's local database. No duplicate downloads, no NIST queries on subsequent openings. Licences respected (only a deep link plus our own visualisation is published).
Data retrieved live from multiple sources (priority chain). JCAMP-DX / CSV / PNG available for download under each spectrum.
IR — Fourier-transform infrared
Loading IR — Fourier-transform infrared…
MS — Mass spectrometry (EI 70eV)
Loading MS — Mass spectrometry (EI 70eV)…
NMR — literature reference values (tabulated)
Tabulated reference values (1H and 13C) for CAS 110-54-3. Literature sources: Gottlieb 1997, Pretsch 2009, Silverstein 2014.
Reference data from the literature. Verify against a reference spectrum before analytical use.
1H NMR (CDCl3)
δ (ppm)
Multiplicity
Integration
J (Hz)
Assignment
1.26
m
8
—
CH2 (C2,3,4,5)
0.88
t
6
6.8
CH3 (C1,6)
Data source: Gottlieb 1997
Type of data: values cited from Gottlieb 1997; the record does not state whether each value was measured or calculated (may be measured or calculated).
13C NMR (CDCl3)
δ (ppm)
Multiplicity
Integration
J (Hz)
Assignment
31.60
s
—
—
C-2,5
22.70
s
—
—
C-3,4
14.10
s
—
—
CH3 (C1,6)
Data source: Gottlieb 1997
Type of data: values cited from Gottlieb 1997; the record does not state whether each value was measured or calculated (may be measured or calculated).
Bibliography (Chicago author-date)
Aue, W. P., E. Bartholdi, and R. R. Ernst. 1976. "Two-Dimensional Spectroscopy. Application to Nuclear Magnetic Resonance." Journal of Chemical Physics 64 (5): 2229–2246. [DOI]
Bodenhausen, Geoffrey, and D. J. Ruben. 1980. "Natural Abundance Nitrogen-15 NMR by Enhanced Heteronuclear Spectroscopy." Chemical Physics Letters 69 (1): 185–189.
Bax, Ad, and Donald G. Davis. 1985. "MLEV-17-Based Two-Dimensional Homonuclear Magnetization Transfer Spectroscopy." Journal of Magnetic Resonance 65 (2): 355–360.
Gottlieb, Hugo E., Vadim Kotlyar, and Abraham Nudelman. 1997. "NMR Chemical Shifts of Common Laboratory Solvents as Trace Impurities." Journal of Organic Chemistry 62 (21): 7512–7515. [DOI]
Harris, Robin K., Edwin D. Becker, Sonia M. Cabral de Menezes, Pierre Granger, Roy E. Hoffman, and Kurt W. Zilm. 2008. "Further Conventions for NMR Shielding and Chemical Shifts (IUPAC Recommendations 2008)." Pure and Applied Chemistry 80 (1): 59–84. [DOI]
Fulmer, Gregory R., Alexander J. M. Miller, Nathaniel H. Sherden, Hugo E. Gottlieb, Abraham Nudelman, Brian M. Rosen, Virgil Percec, and Paul J. Chirik. 2010. "NMR Chemical Shifts of Common Laboratory Solvents as Trace Impurities." Organometallics 29 (9): 2176–2179. [DOI]
Levitt, Malcolm H. 2008. Spin Dynamics: Basics of Nuclear Magnetic Resonance. 2nd ed. Chichester: Wiley. ISBN 978-0-470-51117-6
Friebolin, Horst. 2010. Basic One- and Two-Dimensional NMR Spectroscopy. 5th ed. Weinheim: Wiley-VCH. ISBN 978-3-527-32782-9
Berger, Stefan, and Siegmar Braun. 2004. 200 and More NMR Experiments: A Practical Course. Weinheim: Wiley-VCH. ISBN 978-3-527-31067-8
Sanders, Jeremy K. M., and Brian K. Hunter. 1993. Modern NMR Spectroscopy: A Guide for Chemists. 2nd ed. Oxford: Oxford University Press. ISBN 978-0-19-855514-8
Bovey, Frank A., and Peter A. Mirau. 1996. Nuclear Magnetic Resonance Spectroscopy. 2nd ed. San Diego: Academic Press. ISBN 978-0-12-119765-8
Becker, Edwin D. 2000. High Resolution NMR: Theory and Chemical Applications. 3rd ed. San Diego: Academic Press. ISBN 978-0-12-084660-9
Field, Leslie D., Sev Sternhell, and John R. Kalman. 2013. Organic Structures from Spectra. 5th ed. Chichester: Wiley. ISBN 978-1-118-32498-1
🧮 DFT vs experiment comparison (IR)
Overlay of the experimental IR spectrum on the theoretically calculated spectrum using the B3LYP/6-31G* method (scaling factor 0.9614, Scott & Radom 1996).
Experimental DFT (theoretical)
Full theoretical data (geometry, frequencies): NIST CCCBDB ↗
📚 Bibliography (Chicago)
Becke, Axel D. 1993. "Density-Functional Thermochemistry. III. The Role of Exact Exchange." Journal of Chemical Physics 98 (7): 5648–5652. Definition of the B3LYP functional.
Scott, Anthony P., and Leo Radom. 1996. "Harmonic Vibrational Frequencies: An Evaluation of Hartree–Fock, Møller–Plesset, Quadratic Configuration Interaction, Density Functional Theory, and Semiempirical Scale Factors." Journal of Physical Chemistry 100 (41): 16502–16513. Scaling factors for DFT (e.g., 0.9614 for B3LYP/6-31G*).
Merrick, Jeffrey P., Damian Moran, and Leo Radom. 2007. "An Evaluation of Harmonic Vibrational Frequency Scale Factors." Journal of Physical Chemistry A 111 (45): 11683–11700. An update to Scott & Radom — scale factors for newer DFT functionals.
Lee, Chengteh, Weitao Yang, and Robert G. Parr. 1988. "Development of the Colle-Salvetti Correlation-Energy Formula into a Functional of the Electron Density." Physical Review B 37 (2): 785–789. The LYP correlation — complements Becke 1993 for B3LYP.
Hehre, Warren J., Robert Ditchfield, and John A. Pople. 1972. "Self-Consistent Molecular Orbital Methods. XII. Further Extensions of Gaussian-Type Basis Sets." Journal of Chemical Physics 56 (5): 2257–2261. Definition of the 6-31G* basis set (split-valence + polarization).
Johnson, Russell D., III, ed. 2022. "NIST Computational Chemistry Comparison and Benchmark Database (CCCBDB)." NIST Standard Reference Database 101, Release 22. https://cccbdb.nist.gov. Benchmark for theoretical values — the fallback link in the widget.
Cramer, Christopher J. 2004. "Essentials of Computational Chemistry: Theories and Models." 2nd ed. Chichester: Wiley. A textbook on DFT methods and vibrational frequency calculations.
Jensen, Frank. 2017. "Introduction to Computational Chemistry." 3rd ed. Chichester: Wiley. Modern computational chemistry — basis sets and methods for vibrational spectra.
Foresman, James B., and Æleen Frisch. 2015. "Exploring Chemistry with Electronic Structure Methods." 3rd ed. Wallingford, CT: Gaussian, Inc. A practical Gaussian guide — IR + Raman + NMR from DFT.
🎓 Spectrum interpretation guide (for students)
Explanations of every band in the spectrum — why it appears where it does, and what it indicates about the structure.
IR (infrared) (3 peaks)
The IR (infrared) spectrum contains 3 structurally identified bands (out of 4 detected in total: 1 outside recognised ranges). The analysis below explains what each one means structurally and why it appears in that particular range.
C–H bend (CH3, CH2 — methyl/methylene)CH3/CH2● high
Band "C–H bend (CH3, CH2 — methyl/methylene)" appears in cases: 1,466.0 cm⁻¹ (weak (w)), 2,882.0 cm⁻¹ (medium (m)), 2,938.0 cm⁻¹ (strong (s)). This is the stretching vibration of aliphatic sp³ C–H bonds. Present in virtually every organic compound with an alkyl chain.
📚 Bibliography (Chicago)
Field, Leslie D., Sev Sternhell, and John R. Kalman. 2013. "Organic Structures from Spectra." 5th ed. Chichester: Wiley. A student problem-set textbook (interpretation guide companion).
Williams, Dudley H., and Ian Fleming. 2008. "Spectroscopic Methods in Organic Chemistry." 6th ed. London: McGraw-Hill. A classic of narrative spectral interpretation — explains "why the peak is here".
Crews, Phillip, Jaime Rodríguez, and Marcel Jaspars. 2009. "Organic Structure Analysis." 2nd ed. New York: Oxford University Press. A workflow for multi-parameter structural interpretation.
McLafferty, Fred W., and František Tureček. 1993. "Interpretation of Mass Spectra." 4th ed. Mill Valley, CA: University Science Books. MS fragmentation mechanisms — McLafferty rearrangement, m/z 29 = CHO.
Reusch, William. 2013. "Virtual Textbook of Organic Chemistry: Spectroscopy." East Lansing, MI: Michigan State University. https://www2.chemistry.msu.edu/faculty/reusch/VirtTxtJml/Spectrpy/spectro.htm. An open educational guide to IR/NMR/MS/UV — ideal for explaining functional groups.
Hesse, Manfred, Herbert Meier, and Bernd Zeeh. 2007. "Spektroskopische Methoden in der organischen Chemie." 8th ed. Stuttgart: Thieme. The standard German textbook on spectral interpretation.
Lampman, Gary M., Donald L. Pavia, George S. Kriz, and James R. Vyvyan. 2010. "Spectroscopy." 4th ed. Belmont, CA: Cengage Learning. A workbook with integrated interpretive narratives.
Kalsi, P. S. 2010. "Spectroscopy of Organic Compounds." 6th ed. New Delhi: New Age International. A complete textbook on IR/NMR/MS/UV spectral interpretation.
📈 Mass spectrum (reference)
EI
43
100%
57
64%
86
23%
41
22%
27
20%
29
17%
Match your own spectrum:
MS Spectrum Identification
Paste MSP data or load a .msp / .jdx file
🔎 Spectrum Search (JCAMP-DX)
Upload a JCAMP-DX file (.jdx, .dx, .jcm) — the system will calculate the cosine similarity against all spectra in the database and display the TOP 10 matches.
📚 Bibliography (Chicago)
McLafferty, Fred W., ed. 2018. Wiley Registry of Mass Spectral Data. 11th ed. Hoboken, NJ: Wiley. A reference MS library (~775k spectra).
Stein, Stephen E., and Donald R. Scott. 1994. "Optimization and Testing of Mass Spectral Library Search Algorithms for Compound Identification." Journal of the American Society for Mass Spectrometry 5 (9): 859–866. The cosine + dot-product algorithm of NIST MS Search.
McDonald, Robert S., and Paul A. Wilks Jr. 1988. "JCAMP-DX: A Standard Form for Exchange of Infrared Spectra in Computer Readable Form." Applied Spectroscopy 42 (1): 151–162. The JCAMP-DX specification (extended to 5.01 for NMR/MS).
McLafferty, Fred W., and František Tureček. 1993. "Interpretation of Mass Spectra." 4th ed. Mill Valley, CA: University Science Books. Cosine-similarity matching and MS fragmentation — the foundation of the search algorithm.
Sumner, Lloyd W., Alexander Amberg, Dave Barrett, Michael H. Beale, Richard Beger, Clare A. Daykin, Teresa W.-M. Fan, et al. 2007. "Proposed Minimum Reporting Standards for Chemical Analysis." Metabolomics 3 (3): 211–221. MSI Level 1-4 — confidence-level standards for spectral matching.
Stein, Stephen E. 1999. "An Integrated Method for Spectrum Extraction and Compound Identification from Gas Chromatography/Mass Spectrometry Data." Journal of the American Society for Mass Spectrometry 10 (8): 770–781. The AMDIS algorithm — deconvolution + library match (NIST).
Lindon, John C., George E. Tranter, and David W. Koppenaal, eds. 2017. "Encyclopedia of Spectroscopy and Spectrometry." 3rd ed. Amsterdam: Academic Press. Encyclopedia entries on spectral library searching.
Smith, Brian C. 2011. "Fundamentals of Fourier Transform Infrared Spectroscopy." 2nd ed. Boca Raton, FL: CRC Press. FT-IR and the JCAMP-DX format for transmission spectra.
Larkin, Peter. 2017. "Infrared and Raman Spectroscopy: Principles and Spectral Interpretation." 2nd ed. Amsterdam: Elsevier. Principles of IR/Raman library matching and peak preprocessing.
Structural properties
Loading structural data...
❓ Frequently asked questions (3)
What is 110-54-3?
110-54-3 (CAS 110-54-3) is a chemical compound. The chemical data comes from PubChem (National Institutes of Health, USA).
Helpful?
What is the CAS number of 110-54-3?
The CAS number for 110-54-3 is 110-54-3. A CAS Registry Number is the standard identifier for a chemical substance in scientific literature and in trade.
Helpful?
How should 110-54-3 be stored?
110-54-3 should be stored as its safety data sheet directs \— typically in a dry, cool, well-ventilated place, away from heat and from materials it is incompatible with.
Helpful?
➕ Suggest a question
Download structure files
Molecular structure files from the PubChem database (NIH). Compatible with Avogadro, PyMOL, Jmol, and ChemDraw.
Cohen ER, Cvitaš T, Frey JG, Holmström B, Kuchitsu K, Marquardt R, Mills I, Pavese F, Quack M, Stohner J, Strauss HL, Takami M, Thor AJ (2007)
g/L ↔ molarity
c (mol/L) = (g/L) / MW
±0.1% (depends on MW precision)
Cohen ER, Cvitaš T, Frey JG, Holmström B, Kuchitsu K, Marquardt R, Mills I, Pavese F, Quack M, Stohner J, Strauss HL, Takami M, Thor AJ (2007)
mmol/L ↔ molarity
c (mol/L) = mmol/L × 10⁻³
Exact
Cohen ER, Cvitaš T, Frey JG, Holmström B, Kuchitsu K, Marquardt R, Mills I, Pavese F, Quack M, Stohner J, Strauss HL, Takami M, Thor AJ (2007)
Celsius ↔ Kelvin
T(K) = t(°C) + 273.15
±0.01 K (ITS-90 scale)
BIPM (Bureau International des Poids et Mesures) (2019)
Celsius ↔ Fahrenheit
T(°F) = T(°C) × 9/5 + 32
±0.1 °F
Thompson A, Taylor BN (2008)
density-corrected % ↔ molarity
c (mol/L) = (%w/w × ρ × 10) / MW, ρ in g/mL
±0.1% when ρ known to 3 decimals
Cohen ER, Cvitaš T, Frey JG, Holmström B, Kuchitsu K, Marquardt R, Mills I, Pavese F, Quack M, Stohner J, Strauss HL, Takami M, Thor AJ (2007)
📚 Bibliography (8 authoritative sources)
Thompson A, Taylor BN (2008). Guide for the Use of the International System of Units (SI). NIST Special Publication 811 · DOI: 10.6028/NIST.SP.811-2008 → Primary SI standard for US scientific usage
Cohen ER, Cvitaš T, Frey JG, Holmström B, Kuchitsu K, Marquardt R, Mills I, Pavese F, Quack M, Stohner J, Strauss HL, Takami M, Thor AJ (2007). Quantities, Units and Symbols in Physical Chemistry — The IUPAC Green Book. RSC Publishing, 3rd ed. · DOI: 10.1039/9781847557889 · ISBN: 978-0-85404-433-7 → Canonical IUPAC guide for chemistry quantities/units
BIPM (Bureau International des Poids et Mesures) (2019). The International System of Units (SI), 9th edition. BIPM · ↗ → International SI definitions (incl. redefined kilogram 2019)
ISO/IEC (2022). Quantities and units — Part 1: General. International Organization for Standardization — ISO 80000-1:2022 · ↗ → General rules for physical quantities and units
ISO/IEC (2019). Quantities and units — Part 9: Physical chemistry and molecular physics. International Organization for Standardization — ISO 80000-9:2019 · ↗ → Concentration / molality / amount-of-substance conventions
Tiesinga E, Mohr PJ, Newell DB, Taylor BN (2021). CODATA recommended values of the fundamental physical constants: 2018. Rev. Mod. Phys. 93(2):025010 · DOI: 10.1103/RevModPhys.93.025010 → Avogadro, gas constant, molar volume (2019 SI revision)
IUPAC (2019). Compendium of Chemical Terminology — the IUPAC Gold Book (online). IUPAC · DOI: 10.1351/goldbook → Definitions of mass fraction, molality, normality, ppm, activity
Mills IM, Cvitaš T, Homann K, Kallay N, Kuchitsu K (1988). Quantities, Units and Symbols in Physical Chemistry. Blackwell Scientific Publications, 1st ed. · ISBN: 0-632-01773-5 → Historical predecessor of IUPAC Green Book
Verify reagent purity using standardized analytical methods. Select a test method below and enter your measurement results for automated calculation.
🛡️ Safety — CAS 110-54-3
Data limitations notice. The safety information on this page is for reference only and does not replace a full safety data sheet (SDS). Before using the product, consult the manufacturer's current safety data sheet and the GHS/CLP guidance. The CLP classification applies to the pure bulk substance, not to commercial formulations.
GHS/CLP classification — Regulation (EC) No 1272/2008 + UN GHS Rev. 9 (2021).
H304 — May be fatal if swallowed and enters airways
H336 — May cause drowsiness or dizziness
H373 — May cause damage to organs through prolonged or repeated exposure
H315 — Causes skin irritation
H411 — Toxic to aquatic life with long lasting effects
🛡 Precautionary statements (P)
P203 — Obtain, read and follow all safety instructions before use
✓ Harmonised classification pursuant to Annex VI of the CLP Regulation (EC) 1272/2008 (official, binding classification). Index number: 601-037-00-0.
Reference (Chicago): European Chemicals Agency. "n-hexane, Index No. 601-037-00-0." In Table 3 of Annex VI to Regulation (EC) No 1272/2008 (CLP Regulation), 23rd Adaptation to Technical Progress (harmonised list as of 2026-07-07). Helsinki: European Chemicals Agency, 2026. https://echa.europa.eu/information-on-chemicals/annex-vi-to-clp.
Translations: CLP Regulation (EC) 1272/2008, Annexes III and IV. Data: PubChem/NLM.
☢️ Toxicological data (IARC + EPA CTX)
🧬 IARC Carcinogen Classification
IARC classification:
No individual IARC entry for this CAS
No separate IARC monograph in the checked lists — this is NOT confirmation of a lack of carcinogenicity. Check the CLP/GHS classification (CMR / GHS section).
et al.. (2026). "Comparative metabolic profiling, enzyme inhibitory activities, and in-silico analysis of the hexane extract and the hydrodistilled oil of Boswellia serrata.". https://doi.org/10.1371/journal.pone.0348178 [DOI]
et al.. (2026). "Extraction of Phospholipids From Crude Rapeseed Oil by n-Hexane/Alcohol System: Effects of Solvent Composition on Extraction Performance and Oil Quality.". https://doi.org/10.1002/fsn3.71866 [DOI]
et al.. (2026). "Diastereoselective Cyclopropanation with Secondary Diazoacetamides to Access endo-Azabicyclo[3.1.0]hexane-6-carboxamides.". https://doi.org/10.1021/acs.orglett.6c00392 [DOI]
et al.. (2026). "Comparative chemical and biological study of essential oils and n-hexane extracts of Thymus vulgaris and Thymus serpyllum (Lamiaceae).". https://doi.org/10.1038/s41598-025-33660-w [DOI]
et al.. (2026). "Antioxidant activities and toxicity of dichloromethane and n-hexane extracts of Annona squamosa L. leaves.". https://doi.org/10.4103/japtr.japtr_231_25 [DOI]
et al.. (2026). "Hexane extract of Plumbago europaea L. aerial parts: phytochemical screening and antibacterial activity.". https://doi.org/10.1039/d5ra07370g [DOI]
et al.. (2026). "In silico anticancer, antioxidant and anti-inflammatory study on GC-MS-based profiling of chloroform and hexane extracts of Erigeron multiradiatus.". https://doi.org/10.1007/s40203-026-00645-0 [DOI]
et al.. (2025). "Confined growth of UiO-66 into ultrahigh-loading membranes for efficient hexane isomer separation.". https://doi.org/10.1039/d5sc04212g [DOI]
et al.. (2025). "High-Pressure Phase Behavior of α-Olefin + n-Hexane + Ethylene/1-Octene Copolymer Systems: Experimental Study and Modeling.". https://doi.org/10.3390/polym18010064 [DOI]
et al.. (2024). "Assessment of CPME as Sustainable Low VOC Alternative to Hexane: Optimization of Extraction Efficiency and Bioactive Compound Yield from Fenugreek Seed Oil Using Computational and Experimental Methods.". https://doi.org/10.3390/foods13233899 [DOI]
Aleksandr Denisenko, Pavel Garbuz, Nataliya M. Voloshchuk et al.. (2023). "2-Oxabicyclo[2.1.1]hexanes as saturated bioisosteres of the ortho-substituted phenyl ring". Nature Chemistry. https://doi.org/10.1038/s41557-023-01222-0 [DOI]
Christian Cravotto, Anne‐Sylvie Fabiano‐Tixier, Ombéline Claux et al.. (2022). "Towards Substitution of Hexane as Extraction Solvent of Food Products and Ingredients with No Regrets". Foods. https://doi.org/10.3390/foods11213412 [DOI]
Api AM, Belsito D, Botelho D et al.. (2022). "RIFM fragrance ingredient safety assessment, n-hexane, CAS Registry Number 110-54-3.". Food and chemical toxicology : an international journal published for the British Industrial Biological Research Association. https://doi.org/10.1016/j.fct.2022.112973 [DOI]
Van‐Dung Mai, Sera Shin, Dai-Soo Lee et al.. (2019). "Thermal Healing, Reshaping and Ecofriendly Recycling of Epoxy Resin Crosslinked with Schiff Base of Vanillin and Hexane-1,6-Diamine". Polymers. https://doi.org/10.3390/polym11020293 [DOI]
Songjie Yu, Adam Noble, Robin B. Bedford et al.. (2019). "Methylenespiro[2.3]hexanes via Nickel-Catalyzed Cyclopropanations with [1.1.1]Propellane". Journal of the American Chemical Society. https://doi.org/10.1021/jacs.9b10689 [DOI]
🚨 Emergency procedure — chemical spillFlammable
CAS 110-54-3GHS:H225H361fH304H373H315H336H411💨 Ventilation
🥽 PPE — Personal protective equipment
Goggles:Yes
Suit:antistatic clothing
Respirator:type A2 filter (organic vapours) — EN 14387:2004+A1:2008
⚠️ GENERIC procedure derived from the GHS classification (no curated data for this CAS). Always follow the supplier's current Safety Data Sheet (SDS).
1. Remove ignition sources; no sparking or open flames.
2. Ventilate to disperse vapors; use grounded, spark-proof tools.
3. Cover with a non-combustible absorbent; collect into a vented / UN container.
4. Wash the area with water; treat residues and absorbent as hazardous waste.
Additional properties from GHS:
• health hazard (CMR / STOT / aspiration) — minimize exposure
• irritant — avoid skin/eye contact and dust inhalation
• hazardous to the environment — prevent entry into drains, soil and water
🛢️ Large spill (>1L) ⚠️ Hazardous material
1. Evacuate; eliminate all ignition sources, monitor vapor concentration (LEL).
2. Full antistatic PPE; spark-proof equipment. Extinguishing: foam/powder/CO2 — NOT a water jet.
3. Collect mechanically into a labeled UN container; hand over to an authorized company (BDO — national rule, Poland).
4. Report the incident per the OHS procedure; on release to the environment notify the Regional Environmental Inspectorate (WIOŚ) (national rule — Poland).
🩹 First aid
🧴 Skin
1. Remove contaminated clothing.
2. Rinse the skin with plenty of water for ≥15 min.
3. The substance may be absorbed through the skin — monitor symptoms / see a doctor.
👁️ Eyes
1. Rinse with water for ≥15 min, eyelids held open; remove contact lenses.
2. See an ophthalmologist if irritation persists.
🫁 Inhalation
1. Move the casualty to fresh air, comfortable position.
2. If short of breath — oxygen / doctor.
🍽️ Ingestion
1. Rinse the mouth with water; do NOT induce vomiting.
2. Poison Control Center (Poland): +48 42 631 47 24.
🌍 Environment:
Water: High; Soil: Medium; ❌ Do not release into drains; Waste Code: 16 05 06*
📚 Scientific references (Chicago Author-Date) — 8
European Chemicals Agency (ECHA). 2020. Guidance on the Compilation of Safety Data Sheets — Section 6: Accidental Release Measures. ECHA.
[link ↗]
European Parliament and Council. 2008. Regulation (EC) No 1272/2008 (CLP) — Hazard classes and H-statements. Official Journal of the European Union L 353.
[link ↗]
National Institute for Occupational Safety and Health (NIOSH). 2023. Pocket Guide to Chemical Hazards — NIOSH Pocket Guide to Chemical Hazards. CDC.
[link ↗]
U.S. Occupational Safety and Health Administration. 2024. 29 CFR 1910.120 — Hazardous Waste Operations and Emergency Response (HAZWOPER). U.S. Code of Federal Regulations.
[link ↗]
National Fire Protection Association. 2018. NFPA 472: Standard for Competence of Responders to Hazardous Materials/Weapons of Mass Destruction Incidents. NFPA.
[link ↗]
European Parliament and Council. 2012. Directive 2012/18/EU on the Control of Major-Accident Hazards Involving Dangerous Substances (Seveso III). Official Journal of the European Union L 197: 1–37.
[link ↗]
U.S. National Institute for Occupational Safety and Health. 2024. NIOSH Pocket Guide to Chemical Hazards. Centers for Disease Control and Prevention.
[link ↗]
European Chemicals Agency. 2020. Guidance on the Compilation of Safety Data Sheets (SDS), Version 3.1. ECHA.
[link ↗]
Sources: GHS/CLP classification (PubChem/SDS) — generic fallback · ECHA Guidance on SDS (section 6) · NIOSH Pocket Guide.
Indicative data only — in an emergency, always follow the supplier's instructions and local occupational health and safety (OHS) regulations.
🔥 Visual PPE guide (personal protective equipment)Flammable
🧤 Gloves
Nitrile (chemical-resistant + ESD) >0.2 mm EN 374-1 + EN 16350 (ESD)
NO latex (static); no metal parts
👁️ Safety Glasses / Goggles
EN 166 B
Standard splash protection
🥼 Lab Coat / Coverall
ESD lab coat (anti-static, 100% cotton or Nomex) EN 1149-5 (ESD) + EN ISO 11612 (limited flame spread)
No synthetic fabrics (nylon, polyester) — melting in a fire
💨 Ventilation
6 ACH(air changes/hour) ATEX zone 1/2 ventilation + 6 ACH
No ignition sources (open flame, hot plate, sparks); LEL monitor
📚 Scientific references (Chicago Author-Date)
European Committee for Standardization (CEN). 2016. EN 374-1:2016 — Protective gloves against dangerous chemicals and micro-organisms — Part 1: Terminology and performance requirements for chemical risks. CEN, Brussels. EN 374-1:2016. [link ↗] — Classification of chemical-resistant gloves type A/B/C; JKLPT permeation tests
European Committee for Standardization (CEN). 2001. EN 166:2001 — Personal eye-protection — Specifications. CEN, Brussels. EN 166:2001. [link ↗] — Markings: B = medium-energy impact, T = extreme temperatures, 9 = molten metals and hot solids
European Committee for Standardization (CEN). 2009. EN 14605:2005+A1:2009 — Protective clothing against liquid chemicals — Performance requirements for clothing with liquid-tight (Type 3) or spray-tight (Type 4) connections. CEN, Brussels. EN 14605:2009. [link ↗] — Type 3 (jet-tight) and Type 4 (spray-tight) protection against liquid chemicals
National Institute for Occupational Safety and Health (NIOSH). 2017. Recommendations for Chemical Protective Clothing: A Companion to the NIOSH Pocket Guide. U.S. Department of Health & Human Services / CDC. [link ↗] — Practical guide to CPC (chemical protective clothing) selection per substance and exposure scenario
Occupational Safety and Health Administration (OSHA). 2011. Personal Protective Equipment — General requirements. U.S. Department of Labor — 29 CFR 1910.132. 29 CFR 1910.132. [link ↗] — The employer must provide PPE + training + a documented written hazard assessment
ℹ️ Regulatory obligations checklist for CAS 110-54-3.
Status based on: ADR 2025 (Table A), REACH Annex XVII, CLP Annex VI (harmonised classification), hazard class from the m14-spill DB, SVHC, GIS and the Polish OEL list. Principle: no data = no claim (we do NOT declare "no restrictions" without a basis).
✅SDS (Safety Data Sheet) availablefulfilled
How to comply: Requirement: current SDS compliant with Reg. 1907/2006 (REACH) Annex II, 16-section format.
Legal basis: Regulation (EC) No 1907/2006 (REACH) Art. 31 + Annex II
▣Compliant CLP label (pictograms + signal word + H/P)required
How to comply: The label must include: GHS pictograms, the signal word (Danger/Warning), hazard (H) and precautionary (P) statements, and manufacturer details. Required since 2010 (substances) and 2015 (mixtures). For this substance a HARMONISED CLASSIFICATION applies (CLP Annex VI) — see below; it takes precedence over self-classification.
Legal basis: Regulation (EC) No 1272/2008 (CLP) Art. 17-33 + Annex VI (harmonised classification)
How to comply: Road transport compliant with ADR 2025: Class 3, UN 1208, PG II. Required: DGSA safety adviser certificate, class + UN labels, transport documents, packaging compliant with Chapter 6.
Legal basis: ADR 2025 European Agreement + Polish Act of 19 August 2011 on the Transport of Dangerous Goods National rules — Poland
🔵REACH registration (>1 t/year EU import)conditional
How to comply: Importers/manufacturers ≥1 tonne/year must register the substance with ECHA (technical dossier + Chemical Safety Report if ≥10 t). Check the ECHA Annex VI / registered substances list.
Legal basis: Regulation (EC) No 1907/2006 (REACH) Art. 5-22
⚪REACH Annex XVII (use/marketing restrictions)not applicable
How to comply: Checked against the harmonised classification (CLP Annex VI): the substance has no CMR category 1A/1B classification, so it is NOT subject to the general ban on sale to the general public under entries 28–30 of Annex XVII. NOTE: specific (non-CMR) Annex XVII entries are not covered by the MOL-GOD dataset (incomplete dataset) — if in doubt, check the consolidated Annex XVII on the ECHA website.
Legal basis: Regulation (EC) No 1907/2006 (REACH) Annex XVII — restrictions on manufacture, placing on the market and use
European Parliament and Council. 2008. Regulation (EC) No 1272/2008 on classification, labelling and packaging of substances and mixtures (CLP). Official Journal of the European Union L 353/1. CLP Regulation 1272/2008. [link ↗] — Classification, labelling and packaging of substances + mixtures (GHS implementation in the EU)
European Parliament and Council. 2006. Regulation (EC) No 1907/2006 concerning the Registration, Evaluation, Authorisation and Restriction of Chemicals (REACH). Official Journal of the European Union L 396/1. REACH Regulation 1907/2006. [link ↗] — REACH — registration, evaluation and authorisation of chemicals; SVHC; SDS Annex II
Ministerstwo Rodziny i Polityki Społecznej Rzeczypospolitej Polskiej. 2024. Rozporządzenie Ministra Rodziny i Polityki Społecznej z dnia 4 września 2024 r. w sprawie najwyższych dopuszczalnych stężeń i natężeń czynników szkodliwych dla zdrowia w środowisku pracy. Dziennik Ustaw RP 2024 poz. 1017. National rules — Poland[link ↗] — NDS and NDSCh for ~600 chemical substances — current Polish occupational exposure limits
United Nations Economic Commission for Europe (UNECE). 2025. European Agreement concerning the International Carriage of Dangerous Goods by Road (ADR), 2025 Edition. United Nations, Geneva. ADR 2025. [link ↗] — International agreement on the road transport of dangerous goods — UN numbers, classes, packaging
📚 Consolidated scientific references — Chicago Author-Date 10 sources
References collected from all Safety Hub tabs. CAS: 110-54-3 ·
PubChem ↗
Parlament Europejski i Rada UE. 2008. "Regulation (EC) nr 1272/2008 w sprawie klasyfikacji, oznakowania i pakowania substancji (CLP)." Dz.Urz. UE L 353. [↗]
GHS, Regulations
United Nations Economic Commission for Europe (UNECE). 2021. "Globally Harmonized System of Classification and Labelling of Chemicals (GHS), Ninth Revised Edition." United Nations, Geneva. [↗]
GHS
Goldfrank, Lewis R., Robert S. Hoffman, Mary Ann Howland, et al.. 2019. "Goldfrank's Toxicologic Emergencies, 11th ed.." McGraw-Hill Education, New York. ISBN 978-1-25-985961-8.
First aid, Toxicology
National Institute for Occupational Safety and Health (NIOSH). 2023. "NIOSH Pocket Guide to Chemical Hazards (DHHS Publ. 2005-149)." U.S. Department of Health and Human Services / CDC, Cincinnati, OH. [↗]
First aid, PPE, Toxicology
European Committee for Standardization (CEN). 2016. "EN 374-1:2016 — Protective gloves against dangerous chemicals and micro-organisms." CEN, Brussels. [↗]
PPE
UNECE. 2023. "European Agreement Concerning the International Carriage of Dangerous Goods by Road (ADR 2025)." United Nations, Geneva. [↗]
Disposal, Regulations
National Fire Protection Association (NFPA). 2022. "NFPA 400 — Hazardous Materials Code." NFPA, Quincy, MA. [↗]
Storage
Urben, P.G. (ed.). 2017. "Bretherick's Handbook of Reactive Chemical Hazards, 8th ed.." Butterworth-Heinemann / Elsevier, Oxford. [↗]
Storage
Ministerstwo Klimatu i Środowiska RP. 2023. "Baza danych o produktach i opakowaniach oraz o gospodarce odpadami (BDO)." Ministerstwo Klimatu i Środowiska, Warszawa. National rules — Poland[↗]
Disposal
International Agency for Research on Cancer (IARC / WHO). 2024. "IARC Monographs on the Identification of Carcinogenic Hazards to Humans — List of Classifications." WHO, Lyon. [↗]
Toxicology
Tabs with their own references (Emergency, PPE, Storage, Waste) contain additional bibliographic entries within their respective sections.
Paste a series of replicate measurements (CSV, or one number per line). The calculator computes the mean, standard deviation and 95% CI, and detects outliers (Grubbs + Dixon Q).
Separator: comma, space, tab, new line. Minimum 3 measurements.
📐 Statistical formulas
x̄ = Σxᵢ / n — arithmetic mean
s² = Σ(xᵢ - x̄)² / (n-1) — sample variance
s = √s² — standard deviation
RSD% = (s / x̄) × 100% — relative standard deviation
Plan your entire laboratory project: add experiments with reagents, replicates, and duration. You'll get a Gantt chart, a shopping list (with links to the store!), a budget with a 10% margin, and a GHS risk matrix.
💡 Log in to save projects.
Without logging in you can calculate but not save.
🧪 Solubility and solvent compatibility
Molecule
Hexane
Formula
C6H14
logP (XLogP3)
3.90
Mass (g/mol)
86.18
Polarity
Hydrophobic (non-polar)
⚠️ HSP estimate (literature / group contribution). Indicative data — does not replace experimental studies.
Solvent
Compat.
Ra
Visual
GC-MS
HPLC
Applications
References
Ra < R₀ = good miscibility · Ra < 1,5×R₀ = borderline · above = poor (R₀ — radius of the Hansen sphere of this molecule) For this molecule R₀ = 7..
Solubility theory (applied in compatibility prediction):
Yalkowsky, Samuel H., and Shri C. Valvani. 1980. "Solubility and Partitioning I: Solubility of Nonelectrolytes in Water." Journal of Pharmaceutical Sciences 69 (8): 912–922. https://doi.org/10.1002/jps.2600690814 — General Solubility Equation (GSE): logS = 0.5 − logP − 0.01(MP−25).
Hansen, Charles M. 2007. Hansen Solubility Parameters: A User's Handbook. 2nd ed. CRC Press. https://doi.org/10.1201/9781420006834 — HSP triplet (dD, dP, dH) + Ra formula.
Stefanis, E., and C. Panayiotou. 2008. "Prediction of Hansen Solubility Parameters with a New Group-Contribution Method." Int J Thermophys 29: 568–585. https://doi.org/10.1007/s10765-008-0415-z
Reichardt, Christian, and Thomas Welton. 2011. Solvents and Solvent Effects in Organic Chemistry. 4th ed. Wiley-VCH. https://doi.org/10.1002/9783527632220 — E_T(30) polarity scale, solvatochromism.
Snyder, Lloyd R., Joseph J. Kirkland, and John W. Dolan. 2010. Introduction to Modern Liquid Chromatography. 3rd ed. Wiley. https://doi.org/10.1002/9780470508183 — Eluotropic series, polarity index.
Van Krevelen, D. W., and K. Te Nijenhuis. 2009. Properties of Polymers. 4th ed. Elsevier. https://doi.org/10.1016/B978-0-08-054819-7.X0001-5 — Hoftyzer–Van Krevelen group contribution for dD/dP/dH from SMILES.
Marcus, Yizhak. 1998. The Properties of Solvents. Wiley Series in Solution Chemistry, Vol. 4. ISBN 9780471983699 — Complete tabular set of 250+ solvents (ε, μ, donicity, acceptor numbers).
PubChem Compound Database — CAS 110-54-3 lookup ↗ — logP (XLogP3), water solubility experimental + predicted.
Full bibliography in the REFERENCES accordion (at the bottom of the page) — Chicago Manual of Style 17th ed., Author-Date.
🧮 Solubility calculator
Solubility:—
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Method:—
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Solubility vs temperature
🌐 Hansen Solubility Sphere (3D)
The closer to the molecule (red sphere), the better the solvent. · Advanced: labels + grid + axes + pulsation.
Your molecule
Good (Ra < R₀)
Borderline (Ra < 1.5×R₀)
Poor (Ra ≥ 1.5×R₀)
Ra < R₀ = good miscibility · Ra < 1,5×R₀ = borderline · above = poor (R₀ — radius of the Hansen sphere of this molecule) For this molecule R₀ = 7..
📚 Data sources: HSP + Ra
et al.. (2026). "Comparative metabolic profiling, enzyme inhibitory activities, and in-silico analysis of the hexane extract and the hydrodistilled oil of Boswellia serrata.". https://doi.org/10.1371/journal.pone.0348178 [DOI ↗]
et al.. (2026). "Extraction of Phospholipids From Crude Rapeseed Oil by n-Hexane/Alcohol System: Effects of Solvent Composition on Extraction Performance and Oil Quality.". https://doi.org/10.1002/fsn3.71866 [DOI ↗]
et al.. (2026). "Diastereoselective Cyclopropanation with Secondary Diazoacetamides to Access endo-Azabicyclo[3.1.0]hexane-6-carboxamides.". https://doi.org/10.1021/acs.orglett.6c00392 [DOI ↗]
et al.. (2026). "Comparative chemical and biological study of essential oils and n-hexane extracts of Thymus vulgaris and Thymus serpyllum (Lamiaceae).". https://doi.org/10.1038/s41598-025-33660-w [DOI ↗]
et al.. (2026). "Antioxidant activities and toxicity of dichloromethane and n-hexane extracts of Annona squamosa L. leaves.". https://doi.org/10.4103/japtr.japtr_231_25 [DOI ↗]
et al.. (2026). "Hexane extract of Plumbago europaea L. aerial parts: phytochemical screening and antibacterial activity.". https://doi.org/10.1039/d5ra07370g [DOI ↗]
et al.. (2026). "In silico anticancer, antioxidant and anti-inflammatory study on GC-MS-based profiling of chloroform and hexane extracts of Erigeron multiradiatus.". https://doi.org/10.1007/s40203-026-00645-0 [DOI ↗]
et al.. (2025). "Confined growth of UiO-66 into ultrahigh-loading membranes for efficient hexane isomer separation.". https://doi.org/10.1039/d5sc04212g [DOI ↗]
Method: Group Contribution (GC) — rapid δD/δP/δH estimation from logP when experimental data are unavailable. Accuracy ±2 MPa^½. For higher precision → HSPiP software.
Ra < R₀ = good miscibility · Ra < 1,5×R₀ = borderline · above = poor (R₀ — radius of the Hansen sphere of this molecule) Target molecule: δD=14.9,
δP=0,
δH=07
Drug-likeness radar chart (Lipinski Ro5 / Veber). Green zone = compliance with criteria.
Predictive data — properties calculated in silico (SMILES/RDKit). These do not replace clinical studies. Do not use for drug evaluation without experimental verification.
Lipinski, Christopher A., Franco Lombardo, Beryl W. Dominy, and Paul J. Feeney. 1997. "Experimental and computational approaches to estimate solubility and permeability in drug discovery and development settings." Advanced Drug Delivery Reviews 23 (1-3): 3-25.
Veber, Daniel F., Stephen R. Johnson, Hung-Yuan Cheng, et al. 2002. "Molecular properties that influence the oral bioavailability of drug candidates." Journal of Medicinal Chemistry 45 (12): 2615-2623.
Daina, Antoine, Olivier Michielin, and Vincent Zoete. 2017. "SwissADME: a free web tool to evaluate pharmacokinetics, drug-likeness and medicinal chemistry friendliness." Scientific Reports 7: 42717.
Egan, William J., and Gregory Lauri. 2002. "Prediction of intestinal permeability." Advanced Drug Delivery Reviews 54 (3): 273-289.
Baell, Jonathan B., and Georgina A. Holloway. 2010. "New substructure filters for removal of pan assay interference compounds (PAINS) from screening libraries." Journal of Medicinal Chemistry 53 (7): 2719-2740.
Brenk, Ruth, Alessandro Schipani, Daniel James, et al. 2008. "Lessons learnt from assembling screening libraries for drug discovery for neglected diseases." ChemMedChem 3 (3): 435-444.
Ertl, Peter, and Ansgar Schuffenhauer. 2009. "Estimation of synthetic accessibility score of drug-like molecules based on molecular complexity and fragment contributions." Journal of Cheminformatics 1: 8.
Bickerton, G. Richard, Gaia V. Paolini, Jérémy Besnard, Sorel Muresan, and Andrew L. Hopkins. 2012. "Quantifying the Chemical Beauty of Drugs." Nature Chemistry 4 (2): 90-98.
Hopkins, Andrew L., and Colin R. Groom. 2002. "The Druggable Genome." Nature Reviews Drug Discovery 1 (9): 727-730.
Ghose, Arup K., Vellarkad N. Viswanadhan, and John J. Wendoloski. 1999. "A Knowledge-Based Approach in Designing Combinatorial or Medicinal Chemistry Libraries for Drug Discovery." Journal of Combinatorial Chemistry 1 (1): 55-68.
Tice, Raymond R., Christopher P. Austin, Robert J. Kavlock, and John R. Bucher. 2013. "Improving the Human Hazard Characterization of Chemicals: A Tox21 Update." Environmental Health Perspectives 121 (7): 756-765.
Leeson, Paul D., and Brian Springthorpe. 2007. "The Influence of Drug-Like Concepts on Decision-Making in Medicinal Chemistry." Nature Reviews Drug Discovery 6 (11): 881-890.
Hann, Michael M. 2011. "Molecular Obesity, Potency and Other Addictions in Drug Discovery." MedChemComm 2 (5): 349-355.
Davies, Mark, Michał Nowotka, George Papadatos, et al. 2015. "ChEMBL Web Services: Streamlining Access to Drug Discovery Data and Utilities." Nucleic Acids Research 43 (W1): W612-W620.
Walters, W. Patrick, and Mark A. Murcko. 2002. "Prediction of 'Drug-Likeness.'". Advanced Drug Delivery Reviews 54 (3): 255–271. https://doi.org/10.1016/S0169-409X(02)00003-0.
Congreve, Miles, Robin Carr, Christopher Murray, and Harren Jhoti. 2003. "A 'Rule of Three' for Fragment-Based Lead Discovery?" Drug Discovery Today 8 (19): 876–877. https://doi.org/10.1016/S1359-6446(03)02831-9.
Brenk, Ruth, Alessandro Schipani, Daniel James, Agata Krasowski, Iain Hugh Gilbert, Julie Frearson, and Paul Graham Wyatt. 2008. "Lessons Learnt from Assembling Screening Libraries for Drug Discovery for Neglected Diseases." ChemMedChem 3 (3): 435-444.
Schomburg, Karen T., Sascha Bietz, Hans Briem, Andrea M. Henzler, Stefan Urbaczek, and Matthias Rarey. 2014. "Facing the Challenges of Structure-Based Target Prediction by Inverse Virtual Screening." Journal of Chemical Information and Modeling 54 (6): 1676-1686.
Bemis, Guy W., and Mark A. Murcko. 1996. "The Properties of Known Drugs. 1. Molecular Frameworks." Journal of Medicinal Chemistry 39 (15): 2887-2893.
Schomburg, Karen T., and Matthias Rarey. 2014. "What Is the Potential of Structure-Based Target Prediction Methods?" Future Medicinal Chemistry 6 (17): 1987-1989.
et al.. (2026). "Comparative metabolic profiling, enzyme inhibitory activities, and in-silico analysis of the hexane extract and the hydrodistilled oil of Boswellia serrata.". https://doi.org/10.1371/journal.pone.0348178
et al.. (2026). "Extraction of Phospholipids From Crude Rapeseed Oil by n-Hexane/Alcohol System: Effects of Solvent Composition on Extraction Performance and Oil Quality.". https://doi.org/10.1002/fsn3.71866
et al.. (2026). "Diastereoselective Cyclopropanation with Secondary Diazoacetamides to Access endo-Azabicyclo[3.1.0]hexane-6-carboxamides.". https://doi.org/10.1021/acs.orglett.6c00392
et al.. (2026). "Comparative chemical and biological study of essential oils and n-hexane extracts of Thymus vulgaris and Thymus serpyllum (Lamiaceae).". https://doi.org/10.1038/s41598-025-33660-w
et al.. (2026). "Antioxidant activities and toxicity of dichloromethane and n-hexane extracts of Annona squamosa L. leaves.". https://doi.org/10.4103/japtr.japtr_231_25
et al.. (2026). "Hexane extract of Plumbago europaea L. aerial parts: phytochemical screening and antibacterial activity.". https://doi.org/10.1039/d5ra07370g
et al.. (2026). "In silico anticancer, antioxidant and anti-inflammatory study on GC-MS-based profiling of chloroform and hexane extracts of Erigeron multiradiatus.". https://doi.org/10.1007/s40203-026-00645-0
et al.. (2025). "Confined growth of UiO-66 into ultrahigh-loading membranes for efficient hexane isomer separation.". https://doi.org/10.1039/d5sc04212g
et al.. (2025). "High-Pressure Phase Behavior of α-Olefin + n-Hexane + Ethylene/1-Octene Copolymer Systems: Experimental Study and Modeling.". https://doi.org/10.3390/polym18010064
et al.. (2024). "Assessment of CPME as Sustainable Low VOC Alternative to Hexane: Optimization of Extraction Efficiency and Bioactive Compound Yield from Fenugreek Seed Oil Using Computational and Experimental Methods.". https://doi.org/10.3390/foods13233899
Aleksandr Denisenko, Pavel Garbuz, Nataliya M. Voloshchuk et al.. (2023). "2-Oxabicyclo[2.1.1]hexanes as saturated bioisosteres of the ortho-substituted phenyl ring". Nature Chemistry. https://doi.org/10.1038/s41557-023-01222-0
Christian Cravotto, Anne‐Sylvie Fabiano‐Tixier, Ombéline Claux et al.. (2022). "Towards Substitution of Hexane as Extraction Solvent of Food Products and Ingredients with No Regrets". Foods. https://doi.org/10.3390/foods11213412
Api AM, Belsito D, Botelho D et al.. (2022). "RIFM fragrance ingredient safety assessment, n-hexane, CAS Registry Number 110-54-3.". Food and chemical toxicology : an international journal published for the British Industrial Biological Research Association. https://doi.org/10.1016/j.fct.2022.112973
Van‐Dung Mai, Sera Shin, Dai-Soo Lee et al.. (2019). "Thermal Healing, Reshaping and Ecofriendly Recycling of Epoxy Resin Crosslinked with Schiff Base of Vanillin and Hexane-1,6-Diamine". Polymers. https://doi.org/10.3390/polym11020293
Songjie Yu, Adam Noble, Robin B. Bedford et al.. (2019). "Methylenespiro[2.3]hexanes via Nickel-Catalyzed Cyclopropanations with [1.1.1]Propellane". Journal of the American Chemical Society. https://doi.org/10.1021/jacs.9b10689
Jana Pastvová, Dalibor Kaucký, Jaroslava Morávková et al.. (2017). "Effect of Enhanced Accessibility of Acid Sites in Micromesoporous Mordenite Zeolites on Hydroisomerization of n-Hexane". ACS Catalysis. https://doi.org/10.1021/acscatal.7b01696
Daniel A. Paterson, Min Gao, Young‐Ki Kim et al.. (2016). "Understanding the twist-bend nematic phase: the characterisation of 1-(4-cyanobiphenyl-4′-yloxy)-6-(4-cyanobiphenyl-4′-yl)hexane (CB6OCB) and comparison with CB7CB". Soft Matter. https://doi.org/10.1039/c6sm00537c
Hiroki Konno, Takuya Okamura, Takahito Kawahara et al.. (2012). "Kinetics of n-hexane cracking over ZSM-5 zeolites – Effect of crystal size on effectiveness factor and catalyst lifetime". Chemical Engineering Journal. https://doi.org/10.1016/j.cej.2012.06.157
June Dunnuck. (1991). "NTP technical report on the toxicity studies of of n-Hexane in B6C3F1 Mice (Inhalation Studies) (CAS No. 110-54-3).". PubMed.
Bolton, Evan E., Yanli Wang, Paul A. Thiessen, and Stephen H. Bryant. 2008. "PubChem: Integrated Platform of Small Molecules and Biological Activities." Annual Reports in Computational Chemistry 4: 217-241. [DOI ↗]
Kim, Sunghwan, Jie Chen, Tiejun Cheng, et al. 2023. "PubChem 2023 update." Nucleic Acids Research 51 (D1): D1373-D1380. [DOI ↗]
Kim, Sunghwan, Tiejun Cheng, Jianyong He, Chen Cheng, et al. 2021. "PubChem Protein, Pathway, Reaction, and Disease Specifications." Journal of Cheminformatics 13: 16. [DOI ↗]
Hähnke, Volker D., Sunghwan Kim, and Evan E. Bolton. 2018. "PubChem chemical structure standardization." Journal of Cheminformatics 10: 36. [DOI ↗]
Wang, Yanli, Stephen H. Bryant, Tiejun Cheng, Jiyao Wang, et al. 2017. "PubChem BioAssay: 2017 update." Nucleic Acids Research 45 (D1): D955-D963. [DOI ↗]
Cheng, Tiejun, et al. 2014. "Computation of Octanol-Water Partition Coefficients by Guiding an Additive Model with Knowledge." Journal of Chemical Information and Modeling 54 (3): 793-805. [DOI ↗]
Wilkinson, Mark D., et al. 2016. "The FAIR Guiding Principles for scientific data management and stewardship." Scientific Data 3: 160018. [DOI ↗]
Hersey, Anne, et al. 2015. "Chemical databases: curation or integration by user-defined equivalence?" Drug Discovery Today: Technologies 14: 17-24.
Veber, Daniel F., Stephen R. Johnson, Hung-Yuan Cheng, Brian R. Smith, Keith W. Ward, and Kenneth D. Kopple. 2002. "Molecular Properties That Influence the Oral Bioavailability of Drug Candidates." Journal of Medicinal Chemistry 45 (12): 2615-2623.
ECHA. 2024. "REACH Guidance." European Chemicals Agency. ↗
Albayaty, Muna. 2014. "CAM2038, pharmacokinetics (PK), bioavailability and safety in healthy volunteers." http://isrctn.org/>. https://doi.org/10.1186/isrctn24987553. [DOI ↗]
Groom, Colin R., Ian J. Bruno, Matthew P. Lightfoot, and Suzanna C. Ward. 2016. "The Cambridge Structural Database." Acta Crystallographica Section B 72 (2): 171-179. ↗
Api AM, Belsito D, Botelho D et al. (2022) · Food and chemical toxicology : an international journal published for the British Industrial Biological Research Association
Why it matters:
Selected by multi-criteria score (citations + recency + topic + historical + OA).
📊 Automatically extracted topics from the abstracts of 20 publications for CAS 110-54-3.
Algorithm: TF-IDF (Salton & Buckley 1988) — term frequency × inverse document frequency.
📊 Citation graph for CAS 110-54-3.
Each node = a research paper; an A→B edge = paper A cites B. Data from OpenAlex (Priem 2022).
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Why this page can be checked
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For n-hexane (CAS 110-54-3) the documentation obligation begins before the first shipment. This page sets out what the safety data sheet has to establish.
n-hexane (CAS 110-54-3) at a glance
Substance – n-hexane
CAS number – 110-54-3
EC number – 203-777-6
CLP Annex VI index number – 601-037-00-0
Hazard statements – H225 (highly flammable liquid and vapour); H361f; H304 (may be fatal if swallowed and enters airways); H336 (may cause drowsiness or dizziness); H372 (nervous system) (causes damage to organs through prolonged or repeated exposure); H315 (causes skin irritation)
Hazard classes – Flam. Liq. 2, Repr. 2, Asp. Tox. 1, STOT SE 3, STOT RE 1, Skin Irrit. 2
Label pictograms – GHS02, GHS07, GHS08, GHS09
Signal word – Danger
Entry current as of – ATP22
CMR classification – not classified as CMR in the harmonised entry
Documentation issued – safety data sheet in REACH Annex II structure; working draft or signed card
What is supplied – a document. MolGod.org does not sell, supply or ship chemical substances.
Protective equipment and exposure controls
Section 8 outlines exposure controls and personal protective equipment (PPE) for n-hexane: appropriate glove materials, eye protection, respiratory protection when warranted by the hazard classification, and any established occupational exposure limits. The choice of glove material is more critical than merely wearing gloves; nitrile gloves are not universally suitable.
First-aid content and why it is read first
The first-aid information for CAS 110-54-3 must be understandable and actionable by someone without a chemistry background when following instructions under time pressure. Section 4 includes additional notes intended for medical professionals, where the classification’s clinical relevance is detailed.
What concentration limits apply to n-hexane?
The harmonised entry for n-hexane carries specific concentration limits: H373: C ≥ 5 %. These override the generic cut-off values, so a mixture containing n-hexane is classified against these figures and not against the default thresholds.
What is the EC number for n-hexane?
Alongside CAS 110-54-3, this substance carries EC number 203-777-6 and Annex VI index 601-037-00-0. European documentation is built around the EC number as often as around the CAS: registration dossiers, the candidate list and customs systems key on it. A safety data sheet quoting only one of the two forces every downstream reader to look up the other.
What is the CLP classification of n-hexane?
The harmonised classification for CAS 110-54-3 carries 7 hazard statements: H225, H361f, H304, H336, H372 (nervous system), H315, H411. In plain terms this means highly flammable liquid and vapour; H361f; may be fatal if swallowed and enters airways; may cause drowsiness or dizziness. A harmonised entry is binding across the Union — an importer may not soften it, and a self-classification that diverges from it will not survive an enforcement check.
Identifiers that must agree
Three identifiers accompany this substance, and all must align: the CAS number 110-54-3, the Annex VI index number 601-037-00-0, and the name as listed in the register. Incongruent identifiers represent the subtlest flaw in a documentation set, as each individual document appears correct until a cross-check reveals they describe distinct entities.
Accidental release and containment
A spill of CAS 110-54-3 is handled from section 6, which has to state the containment material and the protective equipment needed to approach. A sheet that describes cleanup without stating what to wear while doing it is incomplete.
Is n-hexane on the SVHC candidate list?
Yes — n-hexane appears on the candidate list of substances of very high concern. That triggers duties that classification alone does not: notification to ECHA above the tonnage threshold, and an obligation to inform recipients where the substance is present in an article above 0.1 % by weight.
What is the UN number for n-hexane?
For carriage, n-hexane is assigned UN 1208, transport class 3, packing group II. These entries belong in section 14 of the safety data sheet and must match the shipping papers exactly. A consignment where the sheet and the transport document disagree on the UN number is stopped before anyone reads the remaining fifteen sections.
How is n-hexane classified for road, sea and air transport?
Carriers and forwarders handling n-hexane compare section 14 against the shipping papers before loading. Any disagreement stops the consignment at the point where correcting it is most expensive.
Documentation demand on the EU market
CAS 110-54-3 has a recorded presence on the European trading market, which means documentation for it is requested routinely rather than exceptionally. Substances that move in commerce attract repeat scrutiny: the same sheet is read by successive customers, carriers and authorities, and a defect that survives the first reading rarely survives the tenth.
Storage and handling in the document
Section 7 of the documentation for n-hexane outlines handling and storage procedures, including incompatible materials, conditions to be avoided, and any segregation requirements arising from its classification. Laboratories reviewing this section require explicit instructions rather than general warnings; for instance, a statement such as ‘store in a cool dry place’ is insufficient, as it leaves the responsibility of defining specific storage conditions to the personnel.
Which GHS pictograms apply to n-hexane?
The label for n-hexane carries GHS02 (flame), GHS07 (exclamation mark), GHS08 (health hazard), GHS09 (environment), with the signal word Danger. These are not chosen by the supplier: CLP Annex VI states them for CAS 110-54-3, and the precedence rules in Annex I decide which pictogram is dropped when two would say the same thing. A label showing a different set from the register is wrong even if every hazard statement on it is correct.
What must the label for n-hexane contain?
The supply label for n-hexane is generated from the same classification that drives the safety data sheet: pictograms selected by precedence, one signal word derived from the highest hazard class present, and the hazard statements H225, H361f, H304… reproduced in full. Where the container is too small to carry the complete set at a legible size, there are lawful ways to handle it and unlawful ones that look identical to a non-specialist.
What do customs check when importing n-hexane?
When a consignment of n-hexane is stopped at the border, the document examined first is rarely the invoice. It is section 14 of the safety data sheet and its agreement with the transport papers. A missing packing group, an absent UN number or a proper shipping name that contradicts the classification of CAS 110-54-3 will hold the pallet regardless of how complete the remaining fifteen sections are.
Questions about documentation for n-hexane
What is the CAS number of n-hexane?
CAS 110-54-3. In CLP Annex VI the same substance carries index number 601-037-00-0, and both identifiers should appear in the documentation.
What hazard statements apply to CAS 110-54-3?
The harmonised entry lists H225, H361f, H304, H336. These are binding across the Union and may not be softened by a self-classification.
In which language must the sheet be supplied?
In an official language of each Member State where n-hexane is placed on the market, unless that State has stated otherwise.
Can I check whether my existing sheet is still valid?
Yes. A section-by-section reading against Annex II and the current harmonised entry establishes that in one pass, and a sheet that passes is reported as passing.
MolGod.org issues documentation and does not sell, supply or ship chemical substances. CAS 110-54-3 identifies the subject of this document.
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Expert-Reviewed SDS
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Everything in the Working Draft
Reviewed by a competent person under Annex II, section by section
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The supplier placing the substance or mixture on the market remains responsible for ensuring that the final safety data sheet matches the material, its identified uses and their legal role in the supply chain.
📚 Scientific references (Chicago Author-Date) — click to expand
Batch management and laboratory certification standards — 13 independent sources (ICH Q1/Q3/Q6/Q7/Q10 + ISO 17025 + WHO TRS + 21 CFR 211 + EMA + USP + Ph.Eur. + PIC/S + IPEC-PQG).
International Council for Harmonisation (ICH). 2000. "Q7 Good Manufacturing Practice Guide for Active Pharmaceutical Ingredients." ICH Expert Working Group. [link ↗] — GMP for APIs — adopted by EMA, FDA, MHLW
International Organization for Standardization. 2017. "ISO/IEC 17025:2017 General requirements for the competence of testing and calibration laboratories." ISO. [link ↗] — Lab accreditation standard underpinning every CoA
World Health Organization. 2010. "WHO Good Manufacturing Practices for Pharmaceutical Products: Main Principles (WHO Technical Report Series No. 957, Annex 3)." WHO Press. [link ↗] — WHO TRS No. 957 — global reference for GMP
International Council for Harmonisation (ICH). 2003. "ICH Q1A(R2): Stability Testing of New Drug Substances and Products." International Council for Harmonisation. [link ↗] — Source for batch shelf-life and retest dating
International Council for Harmonisation (ICH). 2006. "ICH Q3A(R2): Impurities in New Drug Substances." ICH. [link ↗]
International Council for Harmonisation (ICH). 1999. "ICH Q6A: Specifications for New Drug Substances and Products." ICH. [link ↗] — CoA acceptance-criteria specification standard
International Council for Harmonisation (ICH). 2008. "ICH Q10: Pharmaceutical Quality System." ICH. [link ↗]
U.S. Food and Drug Administration. 2024. "21 CFR Part 211: Current Good Manufacturing Practice for Finished Pharmaceuticals." US Code of Federal Regulations. [link ↗] — US legal mandate (Subpart J — Records and Reports)
European Medicines Agency. 2014. "Guideline on Process Validation for Finished Products — Information and Data to Be Provided EMA/CHMP/CVMP/QWP/BWP/70278/2012." European Medicines Agency. [link ↗]
United States Pharmacopeial Convention. 2024. "United States Pharmacopeia and National Formulary, USP 47-NF 42." USP. [link ↗]
European Pharmacopoeia Commission. 2024. "European Pharmacopoeia 11th Edition." Council of Europe — EDQM. [link ↗]
Pharmaceutical Inspection Co-operation Scheme (PIC/S). 2021. "Guide to Good Manufacturing Practice for Medicinal Products PE 009-15." PIC/S Secretariat, Geneva. [link ↗] — Cross-recognized GMP for 54 inspectorates worldwide
International Pharmaceutical Excipients Council (IPEC) and Pharmaceutical Quality Group (PQG). 2017. "Joint IPEC-PQG Good Manufacturing Practices Guide for Pharmaceutical Excipients." IPEC-Americas. [link ↗] — Excipient-grade CoA standard for non-API ingredients
Model: Gaussian curve centered at λmax, scaled with the Beer-Lambert law A = ε · c · l. Transmittance T = 10^(-A) · 100%.
📚 Scientific references (Chicago Author-Date)
et al.. (2026). "Comparative metabolic profiling, enzyme inhibitory activities, and in-silico analysis of the hexane extract and the hydrodistilled oil of Boswellia serrata.". https://doi.org/10.1371/journal.pone.0348178 [DOI]
et al.. (2026). "Extraction of Phospholipids From Crude Rapeseed Oil by n-Hexane/Alcohol System: Effects of Solvent Composition on Extraction Performance and Oil Quality.". https://doi.org/10.1002/fsn3.71866 [DOI]
et al.. (2026). "Diastereoselective Cyclopropanation with Secondary Diazoacetamides to Access endo-Azabicyclo[3.1.0]hexane-6-carboxamides.". https://doi.org/10.1021/acs.orglett.6c00392 [DOI]
et al.. (2026). "Comparative chemical and biological study of essential oils and n-hexane extracts of Thymus vulgaris and Thymus serpyllum (Lamiaceae).". https://doi.org/10.1038/s41598-025-33660-w [DOI]
et al.. (2026). "Antioxidant activities and toxicity of dichloromethane and n-hexane extracts of Annona squamosa L. leaves.". https://doi.org/10.4103/japtr.japtr_231_25 [DOI]
et al.. (2026). "Hexane extract of Plumbago europaea L. aerial parts: phytochemical screening and antibacterial activity.". https://doi.org/10.1039/d5ra07370g [DOI]
et al.. (2026). "In silico anticancer, antioxidant and anti-inflammatory study on GC-MS-based profiling of chloroform and hexane extracts of Erigeron multiradiatus.". https://doi.org/10.1007/s40203-026-00645-0 [DOI]
et al.. (2025). "Confined growth of UiO-66 into ultrahigh-loading membranes for efficient hexane isomer separation.". https://doi.org/10.1039/d5sc04212g [DOI]
et al.. (2025). "High-Pressure Phase Behavior of α-Olefin + n-Hexane + Ethylene/1-Octene Copolymer Systems: Experimental Study and Modeling.". https://doi.org/10.3390/polym18010064 [DOI]
et al.. (2024). "Assessment of CPME as Sustainable Low VOC Alternative to Hexane: Optimization of Extraction Efficiency and Bioactive Compound Yield from Fenugreek Seed Oil Using Computational and Experimental Methods.". https://doi.org/10.3390/foods13233899 [DOI]
Aleksandr Denisenko, Pavel Garbuz, Nataliya M. Voloshchuk et al.. (2023). "2-Oxabicyclo[2.1.1]hexanes as saturated bioisosteres of the ortho-substituted phenyl ring". Nature Chemistry. https://doi.org/10.1038/s41557-023-01222-0 [DOI]
Christian Cravotto, Anne‐Sylvie Fabiano‐Tixier, Ombéline Claux et al.. (2022). "Towards Substitution of Hexane as Extraction Solvent of Food Products and Ingredients with No Regrets". Foods. https://doi.org/10.3390/foods11213412 [DOI]
Api AM, Belsito D, Botelho D et al.. (2022). "RIFM fragrance ingredient safety assessment, n-hexane, CAS Registry Number 110-54-3.". Food and chemical toxicology : an international journal published for the British Industrial Biological Research Association. https://doi.org/10.1016/j.fct.2022.112973 [DOI]
Van‐Dung Mai, Sera Shin, Dai-Soo Lee et al.. (2019). "Thermal Healing, Reshaping and Ecofriendly Recycling of Epoxy Resin Crosslinked with Schiff Base of Vanillin and Hexane-1,6-Diamine". Polymers. https://doi.org/10.3390/polym11020293 [DOI]
Songjie Yu, Adam Noble, Robin B. Bedford et al.. (2019). "Methylenespiro[2.3]hexanes via Nickel-Catalyzed Cyclopropanations with [1.1.1]Propellane". Journal of the American Chemical Society. https://doi.org/10.1021/jacs.9b10689 [DOI]
Jana Pastvová, Dalibor Kaucký, Jaroslava Morávková et al.. (2017). "Effect of Enhanced Accessibility of Acid Sites in Micromesoporous Mordenite Zeolites on Hydroisomerization of n-Hexane". ACS Catalysis. https://doi.org/10.1021/acscatal.7b01696 [DOI]
Daniel A. Paterson, Min Gao, Young‐Ki Kim et al.. (2016). "Understanding the twist-bend nematic phase: the characterisation of 1-(4-cyanobiphenyl-4′-yloxy)-6-(4-cyanobiphenyl-4′-yl)hexane (CB6OCB) and comparison with CB7CB". Soft Matter. https://doi.org/10.1039/c6sm00537c [DOI]
Hiroki Konno, Takuya Okamura, Takahito Kawahara et al.. (2012). "Kinetics of n-hexane cracking over ZSM-5 zeolites – Effect of crystal size on effectiveness factor and catalyst lifetime". Chemical Engineering Journal. https://doi.org/10.1016/j.cej.2012.06.157 [DOI]
June Dunnuck. (1991). "NTP technical report on the toxicity studies of of n-Hexane in B6C3F1 Mice (Inhalation Studies) (CAS No. 110-54-3).". PubMed.
Linstrom, Peter J., and William G. Mallard, eds. 2023. NIST Chemistry WebBook, NIST Standard Reference Database Number 69. Gaithersburg, MD: National Institute of Standards and Technology. [DOI]
Mayerhöfer, Thomas G., Samir Pahlow, and Jürgen Popp. 2020. "The Bouguer-Beer-Lambert Law: Shining Light on the Obscure." ChemPhysChem 21 (18): 2029-2046. [DOI]
Skoog, Douglas A., F. James Holler, and Stanley R. Crouch. 2017. Principles of Instrumental Analysis. 7th ed. Boston: Cengage Learning. ISBN 978-1-305-57721-3.
Lindon, John C., George E. Tranter, and David W. Koppenaal, eds. 2017. "Encyclopedia of Spectroscopy and Spectrometry." 3rd ed. Amsterdam: Academic Press. ISBN 978-0-12-803224-4.
Field, Leslie D., Sev Sternhell, and John R. Kalman. 2013. "Organic Structures from Spectra." 5th ed. Chichester: Wiley. ISBN 978-1-119-96582-6.
Reusch, William. 2013. "Virtual Textbook of Organic Chemistry: Spectroscopy." East Lansing, MI: Michigan State University.
Lampman, Gary M., Donald L. Pavia, George S. Kriz, and James R. Vyvyan. 2010. "Spectroscopy." 4th ed. Belmont, CA: Cengage Learning. ISBN 978-0-495-88992-9.
Kalsi, P. S. 2010. "Spectroscopy of Organic Compounds." 6th ed. New Delhi: New Age International. ISBN 978-81-224-2032-9.
Williams, Dudley H., and Ian Fleming. 2008. "Spectroscopic Methods in Organic Chemistry." 6th ed. London: McGraw-Hill. ISBN 978-0-07-711559-0.
Sadek, Paul C. 2002. The HPLC Solvent Guide. 2nd ed. Hoboken: Wiley. ISBN 978-0-471-41242-2.
Banwell, Colin N., and Elaine M. McCash. 1994. "Fundamentals of Molecular Spectroscopy." 4th ed. London: McGraw-Hill. ISBN 978-0-07-707976-1.
Perkampus, Heinz-Helmut. 1992. UV-VIS Spectroscopy and Its Applications. Berlin: Springer. https://doi.org/10.1007/978-3-642-77479-9.
Fieser, Louis F. 1949. "Extension of Woodward's Rules for Prediction of Conjugated Diene Absorption." Journal of the American Chemical Society 71 (5): 1854-1857. [DOI]
Woodward, Robert B. 1942. "Structure and the Absorption Spectra of Alpha,Beta-Unsaturated Ketones." Journal of the American Chemical Society 64 (1): 72-75. [DOI]
Beer, August. 1852. "Bestimmung der Absorption des rothen Lichts in farbigen Flüssigkeiten." Annalen der Physik und Chemie 86: 78-88. https://doi.org/10.1002/andp.18521620505.
Lambert, Johann Heinrich. 1760. Photometria. Augsburg: Sumptibus Vidae.
📖 The λmax = 200 nm value comes from a database or the literature. No independent cross-check (NIST / CrossRef / PubChem) — cross-verification unavailable.
Source: RTECS MN9275000; Smyth et al. 1962, AIHA J. (1962). CAS 110-54-3.
LD50/LC50 data are for guidance only; they do not replace the safety data sheet (SDS) or expert toxicological assessment. GHS classification for the oral route (mg/kg bw) per UN GHS, 10th rev. 2023, Annex 1 §3.1.1.
Bibliography (Chicago)
NIOSH. Registry of Toxic Effects of Chemical Substances (RTECS). Cincinnati: NIOSH.
United Nations. 2023. "Globally Harmonized System of Classification and Labelling of Chemicals (GHS)." 10th rev. ed. New York: UN.
Hodge, Harold C., and James H. Sterner. 1949. "Tabulation of toxicity classes." American Industrial Hygiene Association Quarterly 10 (4): 93-96.
Further sources (methodology, not cited directly):
U.S. EPA. 2024. "ChemView." https://chemview.epa.gov/.
Lipnick, Robert L., et al. 1995. "Comparison of the up-and-down, conventional LD50, and fixed-dose acute toxicity procedures." Food and Chemical Toxicology 33 (3): 223-231.
ATSDR. 2024. "Toxicological Profiles." Agency for Toxic Substances and Disease Registry. https://www.atsdr.cdc.gov/.
Hayes, Wallace, and Claire L. Kruger, eds. 2014. "Hayes' Principles and Methods of Toxicology." 6th ed. CRC Press.
Lewis, Richard J. 2012. "Sax's Dangerous Properties of Industrial Materials." 12th ed. Wiley.
IARC. 2024. "Monographs on the Evaluation of Carcinogenic Risks to Humans." International Agency for Research on Cancer (classification criteria for carcinogenicity: IARC Group 1/2A/2B).
Pohanish, Richard P. 2017. "Sittig's Handbook of Toxic and Hazardous Chemicals and Carcinogens." 7th ed. Elsevier.
Bingham, Eula, Barbara Cohrssen, and Charles H. Powell, eds. 2012. "Patty's Toxicology." 6th ed. Wiley.
WHO. 2023. "Recommended Classification of Pesticides by Hazard." World Health Organization (zgodne z UN GHS Annex 1 §3.1.1).
📜 Patents (public metadata)
no data
No public patent metadata was found for this substance in Crossref / OpenAlex at this time. Data will be updated automatically after the next cache refresh (24h).
📚 References (Chicago Author-Date) — click to expand
et al.. (2026). "Comparative metabolic profiling, enzyme inhibitory activities, and in-silico analysis of the hexane extract and the hydrodistilled oil of Boswellia serrata.". https://doi.org/10.1371/journal.pone.0348178
et al.. (2026). "Extraction of Phospholipids From Crude Rapeseed Oil by n-Hexane/Alcohol System: Effects of Solvent Composition on Extraction Performance and Oil Quality.". https://doi.org/10.1002/fsn3.71866
et al.. (2026). "Diastereoselective Cyclopropanation with Secondary Diazoacetamides to Access endo-Azabicyclo[3.1.0]hexane-6-carboxamides.". https://doi.org/10.1021/acs.orglett.6c00392
et al.. (2026). "Comparative chemical and biological study of essential oils and n-hexane extracts of Thymus vulgaris and Thymus serpyllum (Lamiaceae).". https://doi.org/10.1038/s41598-025-33660-w
et al.. (2026). "Antioxidant activities and toxicity of dichloromethane and n-hexane extracts of Annona squamosa L. leaves.". https://doi.org/10.4103/japtr.japtr_231_25
et al.. (2026). "Hexane extract of Plumbago europaea L. aerial parts: phytochemical screening and antibacterial activity.". https://doi.org/10.1039/d5ra07370g
et al.. (2026). "In silico anticancer, antioxidant and anti-inflammatory study on GC-MS-based profiling of chloroform and hexane extracts of Erigeron multiradiatus.". https://doi.org/10.1007/s40203-026-00645-0
et al.. (2025). "Confined growth of UiO-66 into ultrahigh-loading membranes for efficient hexane isomer separation.". https://doi.org/10.1039/d5sc04212g
et al.. (2025). "High-Pressure Phase Behavior of α-Olefin + n-Hexane + Ethylene/1-Octene Copolymer Systems: Experimental Study and Modeling.". https://doi.org/10.3390/polym18010064
et al.. (2024). "Assessment of CPME as Sustainable Low VOC Alternative to Hexane: Optimization of Extraction Efficiency and Bioactive Compound Yield from Fenugreek Seed Oil Using Computational and Experimental Methods.". https://doi.org/10.3390/foods13233899
Aleksandr Denisenko, Pavel Garbuz, Nataliya M. Voloshchuk et al.. (2023). "2-Oxabicyclo[2.1.1]hexanes as saturated bioisosteres of the ortho-substituted phenyl ring". Nature Chemistry. https://doi.org/10.1038/s41557-023-01222-0
Christian Cravotto, Anne‐Sylvie Fabiano‐Tixier, Ombéline Claux et al.. (2022). "Towards Substitution of Hexane as Extraction Solvent of Food Products and Ingredients with No Regrets". Foods. https://doi.org/10.3390/foods11213412
Api AM, Belsito D, Botelho D et al.. (2022). "RIFM fragrance ingredient safety assessment, n-hexane, CAS Registry Number 110-54-3.". Food and chemical toxicology : an international journal published for the British Industrial Biological Research Association. https://doi.org/10.1016/j.fct.2022.112973
Van‐Dung Mai, Sera Shin, Dai-Soo Lee et al.. (2019). "Thermal Healing, Reshaping and Ecofriendly Recycling of Epoxy Resin Crosslinked with Schiff Base of Vanillin and Hexane-1,6-Diamine". Polymers. https://doi.org/10.3390/polym11020293
Songjie Yu, Adam Noble, Robin B. Bedford et al.. (2019). "Methylenespiro[2.3]hexanes via Nickel-Catalyzed Cyclopropanations with [1.1.1]Propellane". Journal of the American Chemical Society. https://doi.org/10.1021/jacs.9b10689
Jana Pastvová, Dalibor Kaucký, Jaroslava Morávková et al.. (2017). "Effect of Enhanced Accessibility of Acid Sites in Micromesoporous Mordenite Zeolites on Hydroisomerization of n-Hexane". ACS Catalysis. https://doi.org/10.1021/acscatal.7b01696
Daniel A. Paterson, Min Gao, Young‐Ki Kim et al.. (2016). "Understanding the twist-bend nematic phase: the characterisation of 1-(4-cyanobiphenyl-4′-yloxy)-6-(4-cyanobiphenyl-4′-yl)hexane (CB6OCB) and comparison with CB7CB". Soft Matter. https://doi.org/10.1039/c6sm00537c
Hiroki Konno, Takuya Okamura, Takahito Kawahara et al.. (2012). "Kinetics of n-hexane cracking over ZSM-5 zeolites – Effect of crystal size on effectiveness factor and catalyst lifetime". Chemical Engineering Journal. https://doi.org/10.1016/j.cej.2012.06.157
June Dunnuck. (1991). "NTP technical report on the toxicity studies of of n-Hexane in B6C3F1 Mice (Inhalation Studies) (CAS No. 110-54-3).". PubMed.
World Intellectual Property Organization. 2024. "Patent Cooperation Treaty (PCT)." https://www.wipo.int/pct/.
U.S. Patent and Trademark Office. 2024. "USPTO Patent Public Search." https://ppubs.uspto.gov/.
European Patent Office. 2024. "Espacenet Patent Search." https://worldwide.espacenet.com/.
Newman, David J., and Gordon M. Cragg. 2020. "Natural Products as Sources of New Drugs over the Nearly Four Decades from 01/1981 to 09/2019." Journal of Natural Products 83 (3): 770-803.
Davies, Mark, Michał Nowotka, George Papadatos, et al. 2015. "ChEMBL Web Services: Streamlining Access to Drug Discovery Data and Utilities." Nucleic Acids Research 43 (W1): W612-W620.
Bickerton, G. Richard, Gaia V. Paolini, Jérémy Besnard, Sorel Muresan, and Andrew L. Hopkins. 2012. "Quantifying the Chemical Beauty of Drugs." Nature Chemistry 4 (2): 90-98.
Meanwell, Nicholas A. 2011. "Synopsis of Some Recent Tactical Application of Bioisosteres in Drug Design." Journal of Medicinal Chemistry 54 (8): 2529-2591.
Ertl, Peter, and Ansgar Schuffenhauer. 2009. "Estimation of Synthetic Accessibility Score of Drug-Like Molecules Based on Molecular Complexity and Fragment Contributions." Journal of Cheminformatics 1: 8.
Hopkins, Andrew L., and Colin R. Groom. 2002. "The Druggable Genome." Nature Reviews Drug Discovery 1 (9): 727-730.
Allison, John R., and Mark A. Lemley. 1998. "Empirical Evidence on the Validity of Litigated Patents." AIPLA Quarterly Journal 26 (3): 185-275.
Patani, George A., and Edmond J. LaVoie. 1996. "Bioisosterism: A Rational Approach in Drug Design." Chemical Reviews 96 (8): 3147-3176.
Lerner, Josh. 1994. "The Importance of Patent Scope: An Empirical Analysis." RAND Journal of Economics 25 (2): 319-333.
Crystallographic data for 110-54-3 verified against COD (0 diffraction peaks). The 2θ values below allow identification of the polymorphic form by PXRD in the laboratory.
International Centre for Diffraction Data. 2024. PDF-4+ 2024. Newtown Square, PA: ICDD. 🔓
Allen, Frank H. 2002. "The Cambridge Structural Database: a quarter of a million crystal structures and rising." Acta Crystallographica B 58 (3): 380–388. https://doi.org/10.1107/S0108768102003890
Grazulis, Saulius, Adriana Merkys, Antanas Vaitkus, and Daniel Chateigner. 2012. "Computing stoichiometric molecular composition from crystal structures." Journal of Applied Crystallography 45 (6): 1241–1248. https://doi.org/10.1107/S0021889812042185Open Access
Cullity, B. D., and Stuart R. Stock. 2001. Elements of X-Ray Diffraction. 3rd ed. Upper Saddle River, NJ: Prentice Hall.
Jenkins, Ron, and Robert L. Snyder. 1996. Introduction to X-Ray Powder Diffractometry. New York: Wiley-Interscience. https://doi.org/10.1002/9781118520949
Giacovazzo, Carmelo, Hugo L. Monaco, Giuseppe Artioli, Davide Viterbo, Marco Milanesio, Gastone Gilli, Paola Gilli, Giuseppe Zanotti, Giampiero Ferraris, and Mario Catti. 2011. Fundamentals of Crystallography. 3rd ed. Oxford: Oxford University Press.
Dinnebier, Robert E., and Simon J. L. Billinge, eds. 2008. Powder Diffraction: Theory and Practice. Cambridge: Royal Society of Chemistry. https://doi.org/10.1039/9781847558237
United States Pharmacopeia. 2024. "Chapter <941> Characterization of Crystalline and Partially Crystalline Solids by X-Ray Powder Diffraction (XRPD)." USP-NF. Rockville, MD: USP. 🔓
FAQ — frequently asked questions about PXRD
What is d-spacing and how is it interpreted?
d-spacing is the distance between parallel lattice planes of a crystal, expressed in angstroms (Å). The larger the d, the smaller the 2θ angle. Peaks with a large d (low 2θ) identify long-period structures; peaks at high 2θ — closely packed planes. d-spacing is a structural constant — it does not depend on the instrument.
Why is the polymorphic form important for the pharmaceutical industry?
Different polymorphic forms of the same substance can have drastically different solubility, and through that different bioavailability of the drug. The famous case: ritonavir (Abbott, 1998) — Form II appeared during production, was 50% less soluble than Form I, which caused the product to be withdrawn and losses of ~250 million USD. The pharmacopoeias (USP, PhEur) require the polymorphic form to be specified.
What is the 2θ angle in PXRD?
2θ is the angle between the incident beam and the diffracted beam, measured in degrees. Bragg's law (nλ = 2d·sinθ) relates the diffraction angle to the d-spacing between lattice planes. For Cu Kα (λ=1.54056 Å) typical peaks lie in the 5–70° range. Each peak corresponds to a different family of hkl planes.
How are polymorphic forms of a compound distinguished by PXRD?
Different polymorphic forms have different unit cell parameters, and therefore different 2θ peak positions. Just 3–5 characteristic peaks are enough to identify a form unambiguously. For example, aspirin Form I has a strong peak at 15.52°, Form II at 10.36°. The method is used as standard in the pharmaceutical industry (USP <941>, PhEur 2.9.33).
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📚 REFERENCES (Aggregate bibliography, Chicago Author-Date) 78 items
All scientific sources cited in the accordions above for CAS 110-54-3. Format: Chicago Manual of Style 17th ed., Author-Date system.
AIST. n.d. Spectral Database for Organic Compounds (SDBS): CAS 110-54-3. Tsukuba, Japan: National Institute of Advanced Industrial Science and Technology. https://sdbs.db.aist.go.jp/.
Linstrom, Peter J., and William G. Mallard, eds. n.d. NIST Chemistry WebBook: NIST Standard Reference Database Number 69. Gaithersburg, MD: National Institute of Standards and Technology. https://doi.org/10.18434/T4D303.
PubChem. n.d. PubChem Compound Summary: CAS 110-54-3. Bethesda, MD: National Center for Biotechnology Information (NCBI), National Library of Medicine. https://pubchem.ncbi.nlm.nih.gov/#query=110-54-3.
European Chemicals Agency (ECHA). 2024. "Annex VI to Regulation (EC) No 1272/2008 (CLP) — Harmonised Classification and Labelling." ECHA, Helsinki / Official Journal of the European Union. https://echa.europa.eu/regulations/clp/clp-classification.
National Institute for Occupational Safety and Health (NIOSH). 2017. "Recommendations for Chemical Protective Clothing: A Companion to the NIOSH Pocket Guide." U.S. Department of Health & Human Services / CDC. https://www.cdc.gov/niosh/ncpc/default.html.
Connors, Kenneth A., Gordon L. Amidon, and Valentino J. Stella. 1986. Chemical Stability of Pharmaceuticals: A Handbook for Pharmacists, 2nd ed.. New York: Wiley. https://doi.org/10.1002/0471734683.
Rumble, John R., ed. 2019. CRC Handbook of Chemistry and Physics: 100th Edition. Boca Raton, FL: CRC Press. https://hbcp.chemnetbase.com/.
Stefanis, Emmanuel, and Costas Panayiotou. 2008. "Prediction of Hansen Solubility Parameters with a New Group-Contribution Method." International Journal of Thermophysics 29: 568-585. https://doi.org/10.1007/s10765-008-0415-z.
Stoll, Vincent S., and John S. Blanchard. 1990. "Buffers: Principles and Practice: In Methods in Enzymology, vol. 182." San Diego: Academic Press. https://doi.org/10.1016/0076-6879(90)82008-P.
European Parliament. 2008. "Regulation (EC) No 1272/2008 on Classification, Labelling and Packaging of Substances and Mixtures (CLP)." Official Journal of the European Union L 353: 1–1355.
United Nations. 2021. Globally Harmonized System of Classification and Labelling of Chemicals (GHS). 9th revised ed. ST/SG/AC.10/30/Rev.9. New York and Geneva: United Nations. https://unece.org/ghs-rev9-2021.
United States Pharmacopeial Convention. 2024. "USP <621> Chromatography." In United States Pharmacopeia and National Formulary, USP 47-NF 42. Rockville, MD: USP. https://www.uspnf.com/.
International Organization for Standardization. 2017. "ISO/IEC 17025:2017 General Requirements for the Competence of Testing and Calibration Laboratories." Geneva: ISO. https://www.iso.org/standard/66912.html.
Kolthoff, Izaak Maurits, and Philip J. Elving, eds. 1978. Treatise on Analytical Chemistry, Part I: Theory and Practice. 2nd ed. New York: Wiley-Interscience.
Skoog, Douglas A., F. James Holler, and Stanley R. Crouch. 2018. Principles of Instrumental Analysis. 7th ed. Boston: Cengage Learning.
Christian, Gary D., Purnendu K. Dasgupta, and Kevin A. Schug. 2014. Analytical Chemistry. 7th ed. Hoboken, NJ: Wiley.
International Organization for Standardization. 1994. "ISO 5725-2:1994 Accuracy (Trueness and Precision) of Measurement Methods and Results — Part 2: Basic Method for the Determination of Repeatability and Reproducibility of a Standard Measurement Method." Geneva: ISO. https://www.iso.org/standard/11834.html.
Heckert, N. A., and J. J. Filliben. 2003. "NIST/SEMATECH e-Handbook of Statistical Methods." NIST Handbook 151. Gaithersburg, MD: National Institute of Standards and Technology. https://www.itl.nist.gov/div898/handbook/.
Grubbs, Frank E. 1950. "Sample Criteria for Testing Outlying Observations." Annals of Mathematical Statistics 21 (1): 27–58.
Dixon, Wilfrid J. 1950. "Analysis of Extreme Values." Annals of Mathematical Statistics 21 (4): 488–506.
Snedecor, George W., and William G. Cochran. 1989. Statistical Methods. 8th ed. Ames, IA: Iowa State University Press.
Student [William Sealy Gosset]. 1908. "The Probable Error of a Mean." Biometrika 6 (1): 1–25.
International Organization for Standardization. 2005. "ISO 3534-1:2006 Statistics — Vocabulary and Symbols — Part 1: General Statistical Terms and Terms Used in Probability." Geneva: ISO. https://www.iso.org/standard/40145.html.
Thompson, Michael, Stephen L. R. Ellison, and Roger Wood. 2002. "Harmonized Guidelines for Single-Laboratory Validation of Methods of Analysis." Pure and Applied Chemistry 74 (5): 835–855.
United Nations Economic Commission for Europe. 2024. European Agreement Concerning the International Carriage of Dangerous Goods by Road (ADR), Applicable as from 1 January 2025 (ECE/TRANS/352). Geneva: UNECE. https://unece.org/transport/dangerous-goods/adr-2025-edition.
Ministerstwo Klimatu i Środowiska Rzeczypospolitej Polskiej. 2020. "Rozporządzenie Ministra Klimatu z dnia 2 stycznia 2020 r. w sprawie katalogu odpadów." Dziennik Ustaw RP 2020 poz. 10. https://isap.sejm.gov.pl/isap.nsf/DocDetails.xsp?id=WDU20200000010. National rules — Poland
Główny Inspektorat Ochrony Środowiska (GIOŚ). 2024. "Baza Danych O Odpadach (BDO) — System rejestracji firm utylizacyjnych." Ministerstwo Klimatu i Środowiska. https://bdo.mos.gov.pl/. National rules — Poland
International Organization for Standardization. 2017. "ISO/IEC 17025:2017 General requirements for the competence of testing and calibration laboratories." ISO. https://www.iso.org/standard/66912.html.
World Health Organization. 2010. "WHO Good Manufacturing Practices for Pharmaceutical Products: Main Principles (WHO Technical Report Series No. 957, Annex 3)." WHO Press. https://www.who.int/publications/m/item/trs957-annex3.
Pharmaceutical Inspection Co-operation Scheme (PIC/S). 2021. "Guide to Good Manufacturing Practice for Medicinal Products PE 009-15." PIC/S Secretariat, Geneva. https://picscheme.org/en/publications.
