Benzaldehyde (CAS 100-52-7)

Benzaldehyde. CAS 100-52-7.

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REACH 2020/878
v5 · 21.10.2026

Section 9 — physicochemical properties: 13 of 22 established.

We show what is established and name what is not. Classification and identity are complete on every card; section 9 is where public data is thin.

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📊 Physicochemical data — CAS 100-52-7
📊 Physicochemical properties

Quick Reference

Formula: C7H6O
MW: 106.12 g/mol
CAS: 100-52-7
Appearance: Strongly refractive liquid, becoming yellowish on keeping
Odour: Characteristic odor of volatile oil of almond
🔬 Advanced Properties

Chemical Identifiers

SMILES: C1=CC=C(C=C1)C=O

Last updated: 2026-09-02

Chemical Overview: Benzaldehyde
Molecular formulaC7H6O[1]
Molecular weight106.12 g/mol[1]
LogP (lipophilicity)1.5[1]
IUPAC namebenzaldehyde[1]
SMILESC1=CC=C(C=C1)C=O[1]
InChIKeyHUMNYLRZRPPJDN-UHFFFAOYSA-N[1]

Synonyms: benzaldehyde · 100-52-7 · Benzoic aldehyde · Phenylmethanal · Benzenecarbonal

Data sources: PubChem (NLM/NIH)
Last updated: 2026-09-02

📚 Scientific references (Chicago Author-Date) (1 sources)
  1. PubChem. National Center for Biotechnology Information (NIH/NLM), chemical compound database. ↗ applies to: Molecular formula · Molecular weight · LogP (lipophilicity) · IUPAC name · SMILES · InChIKey

SCIENTIFIC RESEARCH

[1]PubMed2025
Saito J, Onishi N, Yamasaki J et al.. (2025). "Benzaldehyde suppresses epithelial-mesenchymal plasticity and overcomes treatment resistance in cancer by targeting the interaction of 14-3-3ζ with H3S28
[2]PubMed2025
Koeduka T, Ito K, Yamamoto SN et al.. (2025). "Biochemical characterization of benzaldehyde dehydrogenases from petunia.". Plant molecular biology. https://doi.org/10.1007/s11103-025-01597-3
[3]Molgod Data Citations:crossref2024
(2024). "A mechanistic Study of the electrochemical reaction between nitrostyrene and benzaldehyde; DFT calculations on all possible routes and intermediates.". https://doi.org/10.21203/rs.3.rs-468423
[4]PubMed2024
Norris EJ, Kline J, Bloomquist JR. (2024). "Repellency and Toxicity of Vapor-Active Benzaldehydes against Aedes aegypti.". ACS infectious diseases. https://doi.org/10.1021/acsinfecdis.3c00294
[5]PubMed2024
Tsai CC, Chandel AKS, Mitsuhashi K et al.. (2024). "Injectable, Shear-Thinning, Self-Healing, and Self-Cross-Linkable Benzaldehyde-Conjugated Chitosan Hydrogels as a Tissue Adhesive.". Biomacromolecul
[6]PubMed2022
Rong G, Wang C, Hu J et al.. (2022). "Benzaldehyde-tethered fluorous tags for cytosolic delivery of bioactive peptides.". Journal of controlled release : official journal of the Controlled Release Soc
[7]PubMed2022
Sharma B, Kumar S, Preeti et al.. (2022). "1H-1,2,3-triazole embedded Isatin-Benzaldehyde-bis(heteronuclearhydrazones): design, synthesis, antimycobacterial, and cytotoxic evaluation.". Chemical biolo
[8]CrossRef2020
Talita Odriane Custodio Leite. (2020). "Benzaldehyde (CAS 100-52-7)". Revista Virtual de Química. https://doi.org/10.21577/1984-6835.20200015
📚 Scientific references (Chicago Author-Date) 9 refs · 3 baz

MOLECULE Per-CAS bibliography (live from 13+ databases)

Sources: db:pubmed (7) · db:molgod_data_citations:crossref (1) · db:crossref (1)

  1. db:pubmed Saito J, Onishi N, Yamasaki J et al.. (2025). "Benzaldehyde suppresses epithelial-mesenchymal plasticity and overcomes treatment resistance in cancer by targeting the interaction of 14-3-3ζ with H3S28ph.". British journal of cancer. https://doi.org/10.1038/s41416-025-03006-4 →
  2. db:pubmed Koeduka T, Ito K, Yamamoto SN et al.. (2025). "Biochemical characterization of benzaldehyde dehydrogenases from petunia.". Plant molecular biology. https://doi.org/10.1007/s11103-025-01597-3 →
  3. db:molgod_data_citations:crossref (2024). "A mechanistic Study of the electrochemical reaction between nitrostyrene and benzaldehyde; DFT calculations on all possible routes and intermediates.". https://doi.org/10.21203/rs.3.rs-4684231/v1 →
  4. db:pubmed Norris EJ, Kline J, Bloomquist JR. (2024). "Repellency and Toxicity of Vapor-Active Benzaldehydes against Aedes aegypti.". ACS infectious diseases. https://doi.org/10.1021/acsinfecdis.3c00294 →
  5. db:pubmed Tsai CC, Chandel AKS, Mitsuhashi K et al.. (2024). "Injectable, Shear-Thinning, Self-Healing, and Self-Cross-Linkable Benzaldehyde-Conjugated Chitosan Hydrogels as a Tissue Adhesive.". Biomacromolecules. https://doi.org/10.1021/acs.biomac.3c01117 →
  6. db:pubmed Rong G, Wang C, Hu J et al.. (2022). "Benzaldehyde-tethered fluorous tags for cytosolic delivery of bioactive peptides.". Journal of controlled release : official journal of the Controlled Release Society. https://doi.org/10.1016/j.jconrel.2022.09.064 →
  7. db:pubmed Sharma B, Kumar S, Preeti et al.. (2022). "1H-1,2,3-triazole embedded Isatin-Benzaldehyde-bis(heteronuclearhydrazones): design, synthesis, antimycobacterial, and cytotoxic evaluation.". Chemical biology & drug design. https://doi.org/10.1111/cbdd.13984 →
  8. db:crossref Talita Odriane Custodio Leite. (2020). "Benzaldehyde (CAS 100-52-7)". Revista Virtual de Química. https://doi.org/10.21577/1984-6835.20200015 →
  9. db:pubmed Api AM, Belsito D, Biserta S et al.. (2019). "RIFM fragrance ingredient safety assessment, benzaldehyde, CAS Registry Number 100-52-7.". Food and chemical toxicology : an international journal published for the British Industrial Biological Research Association. https://doi.org/10.1016/j.fct.2019.110878 →
Regulatory status of the substance
This substance is subject to regulatory requirements: hazardous waste management (BDO — national rule, Poland). 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
100-52-7
Molecular formula
C7H6O
Molar mass
106.12 g/mol
IUPAC name (EN)
benzaldehyde
SMILES
C1=CC=C(C=C1)C=O
InChIKey
HUMNYLRZRPPJDN-UHFFFAOYSA-N
📚 Related literature (2 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, Biserta S et al. · (2019) · Food and chemical toxicology : an international journal published for the British Industrial Biological Research Association
Talita Odriane Custodio Leite · (2020) · Revista Virtual de Química
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2020
📡 Data sources

The data in this widget comes from the following verified scientific sources:

  • PubChem — National Center for Biotechnology Information (NCBI/NIH), USA
  • ChEMBL — European Bioinformatics Institute (EMBL-EBI), UK
  • NIST WebBook — National Institute of Standards and Technology, USA

Data is cached locally for speed — the widget also works offline.

⚗️ Physicochemical properties
Temp. wrzenia
178.9
Temp. topnienia
-26.2
Density
1.046

Source: PubChem, NIST WebBook. Last updated: 2026-09-02

🔍 External identifiers
13 of 16 ID systems81%
DatabaseIdentifierActions
CAS Registry Number100-52-7Open →
PubChem CID240[1]Open →
InChIKeyHUMNYLRZRPPJDN-UHFFFAOYSA-N[1]Open →
InChIInChI=1S/C7H6O/c8-6-7-4-2-1-3-5-7/h1-6H[1]
SMILESC1=CC=C(C=C1)C=O[1]
EC Number202-860-4[2]Open →
ChEMBLCHEMBL15972[3]Open →
KEGG CompoundC00193Open →
HMDBHMDB0006115Open →
ChemSpider235[4]Open →
UNII (FDA)TA269SD04TOpen →
NSC Number (NCI)7917Open →
WikiData QIDQ372524Open →

Sources: PubChem (NIH), Wikidata SPARQL, KEGG, ChEMBL (EBI), CompTox CTX (EPA).

📚 Scientific references (Chicago Author-Date) (4 sources)
  1. PubChem. National Center for Biotechnology Information (NIH/NLM), chemical compound database. ↗ applies to: PubChem CID · InChIKey · InChI · SMILES
  2. ECHA. EC Inventory — EINECS, ELINCS, NLP and List Numbers assigned under REACH. Helsinki: European Chemicals Agency. ↗ applies to: EC Number
  3. ChEMBL. European Bioinformatics Institute (EMBL-EBI), bioactivity database. ↗ applies to: ChEMBL
  4. ChemSpider. Royal Society of Chemistry, chemical structure database. ↗ applies to: ChemSpider

Further reading

Publications thematically related to this CAS. They are not the source of any value shown on this card.

Extended Bibliography (2)

  1. ★★★★☆ Curated literature 💰 Paywall (probable) ✓ verified Peng M; Siebert DL; Engqvist MKM et al.. 2022. "Modeling-Assisted Design of Thermostable Benzaldehyde Lyases from Rhodococcus erythropolis for Continuous Production of α-Hydroxy Ketones." Chembiochem : a European journal of chemical biology. link [accessed: 2026-11-06]
  2. ★★☆☆☆ Crossref 🔓 OPEN ❓ unverified Shirvani, Donya, Tavakol, Hossein, Abedini, Mahshid. 2024. "A mechanistic Study of the electrochemical reaction between nitrostyrene and benzaldehyde; DFT calculations on all possible routes and intermediates.". https://doi.org/10.21203/rs.3.rs-4684231/v1. link [accessed: 2026-09-02]
📡 Spectroscopy — CAS 100-52-7
📊 Spectra (NMR, IR, MS, UV-Vis) (1)

Available spectrum types: IR

IR spectrum (KBr, 4000-400 cm⁻¹)

440 data points · Source: NIST WebBook · NIST ↗ · 📥 JCAMP-DX
🎓 Spectrum interpretation guide (for students)
How to read an IR spectrum
  • 3200-3600 cm⁻¹ — O-H stretch (broad peak = hydrogen bonding)
  • 2850-3000 cm⁻¹ — C-H stretch (sp³)
  • 1650-1750 cm⁻¹ — C=O stretch (ketones, aldehydes, esters)
  • 1400-1600 cm⁻¹ — aromatic ring vibrations
  • 1000-1300 cm⁻¹ — C-O stretch (ethers, alcohols)
  • No absorption = no functional group → compare with a reference

Sources: LibreTexts ↗, Silverstein (Spectrometric ID) ↗

📚 Scientific references (Chicago Author-Date) (7 sources)
  1. National Institute of Standards and Technology. 2024. "NIST Chemistry WebBook, SRD 69." Gaithersburg, MD: NIST. Accessed 2025-01-01. ↗
  2. Spectral Database for Organic Structure Determination (SDBS). 2024. National Institute of Advanced Industrial Science and Technology (AIST), Japan. Accessed 2025-01-01. ↗
  3. 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 ↗]
  4. 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 ↗]
  5. 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. ↗
  6. 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 ↗]
  7. PubChem. 2024. "PubChem Compound Database." National Library of Medicine, National Institutes of Health. Accessed 2025-01-01. ↗
Structural properties
ParameterValueUnit
Molecular formulaC7H6O
Molar mass106.12g/mol
Exact mass106.041864811Da
Monoisotopic mass106.041864811Da
Topological polar surface area (TPSA)17.1000Ų
XLogP31.5000
Complexity index72.5
Hydrogen bond donors0
Hydrogen bond acceptors1
Rotatable bonds1
Heavy atoms8
Stereocentres (atoms)0
Stereocentres (bonds)0
3D volume90.5000ų
Number of 3D conformers1
Conformer model RMSD0.4000Å
Effective 3D rotors1
H-bond acceptors (3D)1
H-bond donors (3D)0
Rings (3D)1
Hydrophobic centres (3D)0
Steric quadrupole 3D (X/Y/Z)3.12 / 1.41 / 0.60Ų

Source: PubChem Computed Properties, CID 240

❓ Frequently asked questions (8)
What is Benzaldehyde?
Benzaldehyde (CAS 100-52-7) is a chemical compound with the molecular formula C7H6O and a molecular weight of 106.12 g/mol. The chemical data comes from PubChem (National Institutes of Health, USA).
Helpful?
What is the CAS number of Benzaldehyde?
The CAS number for Benzaldehyde is 100-52-7. A CAS Registry Number is the standard identifier for a chemical substance in scientific literature and in trade.
Helpful?
What is the chemical formula of Benzaldehyde?
The molecular formula of Benzaldehyde is C7H6O. Its molecular weight is 106.12 g/mol.
Helpful?
What is the melting point of Benzaldehyde?
The melting point of Benzaldehyde is -26.2.
Helpful?
What is the boiling point of Benzaldehyde?
The boiling point of Benzaldehyde is 178.9.
Helpful?
What is the density of Benzaldehyde?
The density of Benzaldehyde is 1.046.
Helpful?
Is Benzaldehyde hazardous?
Benzaldehyde has a harmonised EU classification (CLP Regulation, Annex VI, index no. 605-012-00-5): H302. Read the safety data sheet before use and follow the handling precautions it states.
Helpful?
How should Benzaldehyde be stored?
Benzaldehyde 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.

Source: PubChem, National Library of Medicine (NIH). CID: 240

🔄 Concentration unit converter LIVE

Enter the Benzaldehyde concentration in any unit — the rest will be calculated automatically.

MW: 106.12 g/mol · IUPAC Gold Book ↗

⚗️ Conversion formulas + citations (per formula)
ConversionFormulaAccuracySource
% (w/v) ↔ molarityc (mol/L) = (% × 10) / MW±0.5% rel. when density ≈ 1.0 g/mLIUPAC (2019)
millimolar ↔ molarc (mol/L) = mM × 10⁻³ExactCohen 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)
molarity (mol/L)c = n/V = (m/MW)/V±0.1% (depends on MW precision)IUPAC (2019)
parts per million (mg/L) ↔ molarityc (mol/L) = ppm / (1000 × MW); equivalently ppm = mg/L for dilute aqueous±1% (density-independent for dilute solutions)IUPAC (2019)
mg/mL ↔ molarityc (mol/L) = (mg/mL × 1000) / MW / 1000 = mg/mL / MW × 1±0.2%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 ↔ molarityc (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 ↔ molarityc (mol/L) = mmol/L × 10⁻³ExactCohen 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 ↔ KelvinT(K) = t(°C) + 273.15±0.01 K (ITS-90 scale)BIPM (Bureau International des Poids et Mesures) (2019)
Celsius ↔ FahrenheitT(°F) = T(°C) × 9/5 + 32±0.1 °FThompson A, Taylor BN (2008)
density-corrected % ↔ molarityc (mol/L) = (%w/w × ρ × 10) / MW, ρ in g/mL±0.1% when ρ known to 3 decimalsCohen 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)
  1. 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.811e2008
    → Primary SI standard for US scientific usage
  2. 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
  3. BIPM (Bureau International des Poids et Mesures) (2019). The International System of Units (SI), 9th edition. BIPM · ↗
    → International SI definitions (incl. redefined kilogram 2019)
  4. ISO/IEC (2022). Quantities and units — Part 1: General. International Organization for Standardization — ISO 80000-1:2022 · ↗
    → General rules for physical quantities and units
  5. 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
  6. 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)
  7. IUPAC (2019). Compendium of Chemical Terminology — the IUPAC Gold Book (online). IUPAC · DOI: 10.1351/goldbook
    → Definitions of mass fraction, molality, normality, ppm, activity
  8. 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
Similar molecular structures

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Calculations per: IUPAC Gold Book ↗, Merck ↗

Computational chemistry

Molecular descriptors

ParameterValueUnit
XLogP3 (lipophilicity)1.50
lipophilic (prefers organic phase)
Topological polar surface area (TPSA)17.10Ų
low polarity, good blood-brain barrier penetration
Complexity index72.5
Formal charge0
neutral molecule

Lipinski's Rule of Five

CriterionValueRuleStatus
Molar mass106.12 g/mol<= 500✓
XLogP31.50<= 5✓
Hydrogen bond donors0<= 5✓
Hydrogen bond acceptors1<= 10✓

The compound satisfies Lipinski's rule — potentially good oral bioavailability.

3D pharmacophore features

ParameterValueUnit
H-bond acceptors (3D)1
H-bond donors (3D)0
Rings (3D)1
Hydrophobic centres (3D)0
Anionic centres (3D)0
Cationic centres (3D)0

Shape and volume

ParameterValueUnit
3D volume90.50ų
Rotatable bonds1
Heavy atoms8

The TPSA interpretations and Lipinski's rule are empirical rules for small-molecule oral drugs (Lipinski 1997, Veber 2002, Kelder 1999). They are not an assessment of the absorption or toxicity of this substance — safety data are given in the Safety Data Sheet.

Source: PubChem Computed Properties, CID 240

🛡️ Safety — CAS 100-52-7
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).

⚠ Warning
GHS07 — Irritant / harmful
GHS07 Irritant / harmful

🚨 Hazard statements (H)

  • H302 — Harmful if swallowed

🛡 Precautionary statements (P)

  • P264 — Wash thoroughly after handling
  • P270 — Do not eat, drink or smoke when using this product
  • P301+P312 — IF SWALLOWED: Call a POISON CENTER or doctor/physician if you feel unwell
  • P330 — Rinse mouth
  • P501 — Dispose of contents/container to an approved waste collection point

✓ Harmonised classification pursuant to Annex VI of the CLP Regulation (EC) 1272/2008 (official, binding classification). Index number: 605-012-00-5.

Reference (Chicago): European Chemicals Agency. "benzaldehyde, Index No. 605-012-00-5." 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.

📚 Consolidated scientific references — Chicago Author-Date 10 sources

References collected from all Safety Hub tabs. CAS: 100-52-7 · PubChem ↗

  1. 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
  2. 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
  3. 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
  4. 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
  5. European Committee for Standardization (CEN). 2016. "EN 374-1:2016 — Protective gloves against dangerous chemicals and micro-organisms." CEN, Brussels. [↗] PPE
  6. UNECE. 2023. "European Agreement Concerning the International Carriage of Dangerous Goods by Road (ADR 2025)." United Nations, Geneva. [↗] Disposal, Regulations
  7. National Fire Protection Association (NFPA). 2022. "NFPA 400 — Hazardous Materials Code." NFPA, Quincy, MA. [↗] Storage
  8. Urben, P.G. (ed.). 2017. "Bretherick's Handbook of Reactive Chemical Hazards, 8th ed.." Butterworth-Heinemann / Elsevier, Oxford. [↗] Storage
  9. 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
  10. 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.

📈 Analytical statistics (t-test · RSD · Grubbs · Q-Dixon) ICH Q2

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
  • CI₉₅ = x̄ ± t(0.05, n-1) × s / √n — Student's t
  • G = |xᵢ - x̄| / s — Grubbs' test
  • Q = |xsuspect - xnearest| / |xmax - xmin| — Dixon Q-test

Source: ICH Q2(R2) Validation of Analytical Procedures · ICH PDF ↗

🧪 Buffer Recipe Calculator UNIQUE

Choose a buffer from the list of 20 popular systems → enter the target pH → get an exact recipe with the masses to weigh out.

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📜 Recipe history (last 10)
🚚 Transport classification (ADR / IATA / IMDG)

UN 1990 — verify the transport class in ADR 2025 (Table A). Section 14 of the sheet gives a UN number, but without a confirmed ADR class.

Source: Karta SDS sek.14 (UN bez potwierdzonej klasy)
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🧪 Solubility and solvent compatibility
Molecule
Benzaldehyde
Formula
C7H6O
logP (XLogP3)
1.50
Mass (g/mol)
106.12
Polarity
Moderate

⚠️ Compatibility per Hansen parameters (δD/δP/δH) — literature values. Indicative data; verify experimentally.

Ra < R₀ = good miscibility · Ra < 1,5×R₀ = borderline · above = poor (R₀ — radius of the Hansen sphere of this molecule) For this molecule R₀ = 8..

Solvent Compat. Ra Visual GC-MS HPLC Applications References
Water (H₂O)− Poor38.8
✗ NoA (aqueous) (RP)
buffercell cultureanalyticalextraction (hydrophilic)
Ethanol (EtOH)− Poor15.9
✗ NoA/B modifier (RP/NP)
extractionspectroscopy (UV-Vis)synthesisHPLC modifier
Methanol (MeOH)− Poor19.7
✗ NoA/B (RP) (RP)
HPLC (eluent)LC-MSKarl FischerUV-transparent to 205 nm
Acetone~ Avg.8.5
✗ NoB modifier (NP)
GC headspacecrystallisationdegreasingsynthesis
Acetonitrile (ACN)− Poor13.4
✗ NoB (RP) (RP)
HPLC eluent (gold standard)LC-MS (low UV cut-off, 190 nm)peptide analysis
DMSO~ Avg.10.4
✗ NoN/A (N/A)
NMR (d6-DMSO)cell biology (cryopreservation)drug deliverysynthesis
THF+ Good6.1
✗ NoB (NP) (NP)
GPC/SEC (polymer analysis)Grignard synthesisorganometallics
DCM (CH₂Cl₂)+ Good2.8
✓ YesB (NP) (NP)
extractionNP-HPLCGC-MScrystallisation (anti-solvent)
Chloroform (CHCl₃)+ Good5.4
✓ YesN/A (toxic) (N/A)
NMR (CDCl3)lipid extraction (Folch method)NP-TLC
Hexane− Poor12.8
✓ YesA (NP) (NP)
NP-HPLCoil extraction (lipids)GC-MSTLC (NP)
Toluene+ Good7.4
✓ YesB (NP) (NP)
NMR (d8-toluene)synthesisazeotropic drying (Dean-Stark)
📚 Scientific references for solvents (Chicago Author-Date) — click to expand

11 solvents · 54 full citations (NIST/CRC/IARC/Hansen/Reichardt/Smallwood/Wypych/Armarego/Snyder/GESTIS) — below.

Water (H₂O)
  1. NIST — NIST Chemistry WebBook — Water (CAS 7732-18-5)
  2. CRC — CRC Handbook of Chemistry and Physics, 104th ed., Sec. 8 (Properties of Water)
  3. IAPWS — IAPWS Release on Static Dielectric Constant of Water
  4. Reichardt 2011 — Solvents and Solvent Effects in Organic Chemistry
  5. GESTIS — GESTIS Substance Database — Water
Ethanol (EtOH)
  1. NIST — NIST Chemistry WebBook — Ethanol (CAS 64-17-5)
  2. CRC — CRC Handbook — Ethanol physical constants
  3. Snyder & Kirkland — Modern Liquid Chromatography — Ethanol eluotropic
  4. Smallwood — Handbook of Organic Solvent Properties — Ethanol
  5. GESTIS — GESTIS Substance Database — Ethanol
Methanol (MeOH)
  1. NIST — NIST Chemistry WebBook — Methanol (CAS 67-56-1)
  2. CRC — CRC Handbook — Methanol physical constants
  3. Snyder & Kirkland — Modern Liquid Chromatography — MeOH eluotropic, eo=0.95
  4. GESTIS — GESTIS Substance Database — Methanol
Acetone
  1. NIST — NIST Chemistry WebBook — Acetone (CAS 67-64-1)
  2. CRC — CRC Handbook — Acetone physical & thermodynamic constants
  3. Hansen 2007 — Hansen Solubility Parameters — Acetone (dD=15.5, dP=10.4, dH=7.0)
  4. Smallwood — Handbook of Organic Solvent Properties — Acetone
  5. GESTIS — GESTIS Substance Database — Acetone
Acetonitrile (ACN)
  1. NIST — NIST Chemistry WebBook — Acetonitrile (CAS 75-05-8)
  2. CRC — CRC Handbook — Acetonitrile constants
  3. Snyder & Kirkland — Modern Liquid Chromatography — ACN gold-standard HPLC eluent
  4. Reichardt 2011 — Solvents and Solvent Effects — ACN dipolar aprotic
  5. GESTIS — GESTIS Substance Database — Acetonitrile
DMSO
  1. NIST — NIST Chemistry WebBook — DMSO (CAS 67-68-5)
  2. Wypych 2019 — Handbook of Solvents Vol. 1 — DMSO comprehensive properties
  3. Hansen 2007 — HSP — DMSO (dD=18.4, dP=16.4, dH=10.2)
  4. Reichardt 2011 — Solvents and Solvent Effects — DMSO E_T(30)=45.1, dipolar aprotic
  5. GESTIS — GESTIS Substance Database — DMSO
THF
  1. NIST — NIST Chemistry WebBook — THF (CAS 109-99-9)
  2. Armarego 2009 — Purification of Laboratory Chemicals — THF drying & peroxide test
  3. Hansen 2007 — Hansen Solubility Parameters — THF (dD=16.8, dP=5.7, dH=8.0)
  4. Smallwood — Handbook of Organic Solvent Properties — THF
  5. GESTIS — GESTIS Substance Database — Tetrahydrofuran
DCM (CH₂Cl₂)
  1. NIST — NIST Chemistry WebBook — Dichloromethane (CAS 75-09-2)
  2. IARC 71 — IARC Monograph 71 — DCM (Group 2A carcinogen)
  3. Hansen 2007 — Hansen Solubility Parameters — DCM (dD=18.2, dP=6.3, dH=6.1)
  4. Reichardt 2011 — Solvents and Solvent Effects — DCM polarity index
  5. GESTIS — GESTIS Substance Database — Dichloromethane
Chloroform (CHCl₃)
  1. NIST — NIST Chemistry WebBook — Chloroform (CAS 67-66-3)
  2. IARC 73 — IARC Monograph 73 — Chloroform (Group 2B carcinogen)
  3. Hansen 2007 — Hansen Solubility Parameters — CHCl3 (dD=17.8, dP=3.1, dH=5.7)
  4. Reichardt 2011 — Solvents and Solvent Effects — CHCl3 H-bond donor strength
  5. GESTIS — GESTIS Substance Database — Chloroform
n-Hexane
  1. NIST — NIST Chemistry WebBook — n-Hexane (CAS 110-54-3)
  2. ATSDR n-Hexane — ATSDR Toxicological Profile for n-Hexane — peripheral neuropathy (n-hexane is NOT an IARC carcinogen)
  3. Hansen 2007 — Hansen Solubility Parameters — n-Hexane (dD=14.9, dP=0, dH=0)
  4. Snyder & Kirkland — Modern Liquid Chromatography — n-Hexane NP standard, eo=0.00
  5. GESTIS — GESTIS Substance Database — n-Hexane
Toluene
  1. NIST — NIST Chemistry WebBook — Toluene (CAS 108-88-3)
  2. IARC 71 — IARC Monograph 71 — Toluene
  3. Hansen 2007 — Hansen Solubility Parameters — Toluene (dD=18.0, dP=1.4, dH=2.0)
  4. Smallwood — Handbook of Organic Solvent Properties — Toluene
  5. GESTIS — GESTIS Substance Database — Toluene
Solubility theory (applied in compatibility prediction):
  1. 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).
  2. 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.
  3. 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
  4. 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.
  5. 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.
  6. 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.
  7. 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).
  8. PubChem Compound Database — CAS 100-52-7 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.

⚗️ Check reaction compatibility
2 0 0
Health: 2/4
Flammability: 0/4
Reactivity: 0/4
Per NFPA 704 / calculated from H-codes

Check whether Benzaldehyde is compatible with another reagent

📦 Storage compatibility matrix
Acids Bases Oxidizers Flammable Toxic Gazy
Acids ✓ ✗ ✗ ✗ ⚠ ✗
Bases ✗ ✓ ⚠ ⚠ ⚠ ⚠
Oxidizers ✗ ⚠ ✓ ✗ ⚠ ✗
Flammable ✗ ⚠ ✗ ✓ ⚠ ✗
Toxic ⚠ ⚠ ⚠ ⚠ ✓ ⚠
Gazy ✗ ⚠ ✗ ✗ ⚠ ✓
✓ Can be stored together · ⚠ Caution · ✗ Do NOT store together · OSHA Chemical Segregation ↗

Compatibility data from: Bretherick's Handbook (7th ed.) ↗, GESTIS ↗, ECHA REACH ↗, NFPA 704 ↗

🧮 Laboratory calculators (8)
Dilution (C₁V₁=C₂V₂)
Molarity (M=n/V)
pH Buffer (Henderson-Hasselbalch)
Beer-Lambert (A=εcl)
Mass → Moles
Concentration % → M
ppm → mg/L
Temperature C↔F↔K

Verified formulas: IUPAC Gold Book ↗, DOI ↗

📊 Spectroscopic Databases
📋 Laboratory protocol generator

Protocol generated based on: GHS SDS, Aldrich Lab Guide ↗

🏷️ Label generator (QR)
Benzaldehyde• Benzoic aldehyde / Phenylmethanal• IUPAC: benzaldehyde• CAS: 100-52-7• EC: 202-860-4• Formula: C7H6O• Mass: 106.12 g/molWARNINGGHS HAZARD STATEMENTS:H302: Harmful if swallowedP301+P312 P330 P501 P264 P270FOR LABORATORY USE ONLY!Nonsensia Ltd124-128 City Road, EC1V 2NX London[email protected]molgod.orgBatch No.: Net Mass:
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📚 Scientific literature overview — CAS 100-52-7
⭐ Key findings (scientific literature) 5 publications
🏆 CAS 100-52-7 — multi-criteria ranking (W12): 30% citations · 20% recency · 20% topic · 15% historical · 15% open access.
  1. #1
    Gerloff J; Sundar IK; Freter R et al. (2017) · Applied in vitro toxicology
    Why it matters: Must-cite (canon) · 174 citations
    SCORE 10.43 Analytics MUST-CITE Citations: 174 DOI ↗
  2. #2
    Behar RZ; Luo W; McWhirter KJ et al. (2018) · Scientific reports
    Why it matters: Must-cite (canon) · 143 citations
    SCORE 9.68 Analytics MUST-CITE Citations: 143 DOI ↗
  3. #3
    Tierney PA; Karpinski CD; Brown JE et al. (2016) · Tobacco control
    Why it matters: Must-cite (canon) · 269 citations
    SCORE 9.09 Mechanism MUST-CITE Citations: 269 DOI ↗
  4. #4
    Kumar M; Son R; Preston SM et al. (2026) · Gut microbes
    Why it matters: Must-cite (canon) · recent (2026)
    SCORE 4 Industrial MUST-CITE DOI ↗
  5. #5
    Peng M; Siebert DL; Engqvist MKM et al. (2022) · Chembiochem : a European journal of chemical biology
    Why it matters: Must-cite (canon)
    SCORE 3.6 Industrial MUST-CITE DOI ↗

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Benzaldehyde — CAS 100-52-7. Prepared from the supplier’s public catalogue; not verified against their internal data.

📄 Certificates of Analysis (CoA) CAS 100-52-7 none

No certificates for this product in the database.

📚 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).

  1. 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
  2. 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
  3. 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
  4. 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
  5. International Council for Harmonisation (ICH). 2006. "ICH Q3A(R2): Impurities in New Drug Substances." ICH. [link ↗]
  6. International Council for Harmonisation (ICH). 1999. "ICH Q6A: Specifications for New Drug Substances and Products." ICH. [link ↗] — CoA acceptance-criteria specification standard
  7. International Council for Harmonisation (ICH). 2008. "ICH Q10: Pharmaceutical Quality System." ICH. [link ↗]
  8. 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)
  9. 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 ↗]
  10. United States Pharmacopeial Convention. 2024. "United States Pharmacopeia and National Formulary, USP 47-NF 42." USP. [link ↗]
  11. European Pharmacopoeia Commission. 2024. "European Pharmacopoeia 11th Edition." Council of Europe — EDQM. [link ↗]
  12. 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
  13. 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
📈 UV-VIS spectrum predictor (200-400 nm) λmax 243 nm
0%25%50%75%100%200250300350400243 nmA = ε·c·lA / Aₘₐₓ (%)
CompoundBenzaldehyde
λmax243 nm
λmin220 nm
εmax (M⁻¹·cm⁻¹)11,900
Solvent (query)water
Solvent (reference)methanol
Concentration (M)1e-4
Path length (cm)1
Curve FWHM46 nm

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)
  1. Saito J, Onishi N, Yamasaki J et al.. (2025). "Benzaldehyde suppresses epithelial-mesenchymal plasticity and overcomes treatment resistance in cancer by targeting the interaction of 14-3-3ζ with H3S28ph.". British journal of cancer. https://doi.org/10.1038/s41416-025-03006-4 [DOI]
  2. Koeduka T, Ito K, Yamamoto SN et al.. (2025). "Biochemical characterization of benzaldehyde dehydrogenases from petunia.". Plant molecular biology. https://doi.org/10.1007/s11103-025-01597-3 [DOI]
  3. (2024). "A mechanistic Study of the electrochemical reaction between nitrostyrene and benzaldehyde; DFT calculations on all possible routes and intermediates.". https://doi.org/10.21203/rs.3.rs-4684231/v1 [DOI]
  4. Norris EJ, Kline J, Bloomquist JR. (2024). "Repellency and Toxicity of Vapor-Active Benzaldehydes against Aedes aegypti.". ACS infectious diseases. https://doi.org/10.1021/acsinfecdis.3c00294 [DOI]
  5. Tsai CC, Chandel AKS, Mitsuhashi K et al.. (2024). "Injectable, Shear-Thinning, Self-Healing, and Self-Cross-Linkable Benzaldehyde-Conjugated Chitosan Hydrogels as a Tissue Adhesive.". Biomacromolecules. https://doi.org/10.1021/acs.biomac.3c01117 [DOI]
  6. Rong G, Wang C, Hu J et al.. (2022). "Benzaldehyde-tethered fluorous tags for cytosolic delivery of bioactive peptides.". Journal of controlled release : official journal of the Controlled Release Society. https://doi.org/10.1016/j.jconrel.2022.09.064 [DOI]
  7. Sharma B, Kumar S, Preeti et al.. (2022). "1H-1,2,3-triazole embedded Isatin-Benzaldehyde-bis(heteronuclearhydrazones): design, synthesis, antimycobacterial, and cytotoxic evaluation.". Chemical biology & drug design. https://doi.org/10.1111/cbdd.13984 [DOI]
  8. Talita Odriane Custodio Leite. (2020). "Benzaldehyde (CAS 100-52-7)". Revista Virtual de Química. https://doi.org/10.21577/1984-6835.20200015 [DOI]
  9. Api AM, Belsito D, Biserta S et al.. (2019). "RIFM fragrance ingredient safety assessment, benzaldehyde, CAS Registry Number 100-52-7.". Food and chemical toxicology : an international journal published for the British Industrial Biological Research Association. https://doi.org/10.1016/j.fct.2019.110878 [DOI]
  10. 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]
  11. 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]
  12. 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.
  13. 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.
  14. Field, Leslie D., Sev Sternhell, and John R. Kalman. 2013. "Organic Structures from Spectra." 5th ed. Chichester: Wiley. ISBN 978-1-119-96582-6.
  15. Reusch, William. 2013. "Virtual Textbook of Organic Chemistry: Spectroscopy." East Lansing, MI: Michigan State University.
  16. 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.
  17. Kalsi, P. S. 2010. "Spectroscopy of Organic Compounds." 6th ed. New Delhi: New Age International. ISBN 978-81-224-2032-9.
  18. Williams, Dudley H., and Ian Fleming. 2008. "Spectroscopic Methods in Organic Chemistry." 6th ed. London: McGraw-Hill. ISBN 978-0-07-711559-0.
  19. Sadek, Paul C. 2002. The HPLC Solvent Guide. 2nd ed. Hoboken: Wiley. ISBN 978-0-471-41242-2.
  20. Banwell, Colin N., and Elaine M. McCash. 1994. "Fundamentals of Molecular Spectroscopy." 4th ed. London: McGraw-Hill. ISBN 978-0-07-707976-1.
  21. Perkampus, Heinz-Helmut. 1992. UV-VIS Spectroscopy and Its Applications. Berlin: Springer. https://doi.org/10.1007/978-3-642-77477-5.
  22. 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]
  23. 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]
  24. 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.
  25. Lambert, Johann Heinrich. 1760. Photometria. Augsburg: Sumptibus Vidae.
🔍 Confirmation by independent sources SINGLE λmax = 241 nm (1 sources, ±5 nm)
  • 🗃️ database Kim, Sunghwan, et al. 2023. "PubChem 2023 update." Nucleic Acids Research 51 (D1): D1373-D1380. https://doi.org/10.1093/nar/gkac956. UV spectrum data for CAS 100-52-7 sourced from Hazardous Substances Data Bank (HSDB). PubChem CID: 240. Accessed 2026. λ=241 nm
  • 📚 textbook Dulski, Thomas R.. 2017. "UV/Visible Molecular Absorption Spectrophotometry." Trace Elemental Analysis of Metals: 177-252. https://doi.org/10.1201/9780203735299-5. [DOI]
  • 📚 textbook Anonymous. 1989. "Some Applications of Uv and Vis Spectrophotometry." Studies in Analytical Chemistry: 260-303. https://doi.org/10.1016/b978-0-444-98882-9.50012-8. [DOI]
  • 📚 textbook Anonymous. 1989. "Basis of Spectrophotometry in the Uv and Vis Regions." Studies in Analytical Chemistry: 13-46. https://doi.org/10.1016/b978-0-444-98882-9.50005-0. [DOI]

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📚 REFERENCES (Aggregate bibliography, Chicago Author-Date) 78 items

All scientific sources cited in the accordions above for CAS 100-52-7. Format: Chicago Manual of Style 17th ed., Author-Date system.

🗄️ Scientific databases

  1. NIST. n.d. NIST Chemistry WebBook: CAS 100-52-7. Gaithersburg, MD: National Institute of Standards and Technology. https://webbook.nist.gov/cgi/cbook.cgi?ID=100-52-7.
  2. AIST. n.d. Spectral Database for Organic Compounds (SDBS): CAS 100-52-7. Tsukuba, Japan: National Institute of Advanced Industrial Science and Technology. https://sdbs.db.aist.go.jp/.
  3. 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.
  4. PubChem. n.d. PubChem Compound Summary: CAS 100-52-7. Bethesda, MD: National Center for Biotechnology Information (NCBI), National Library of Medicine. https://pubchem.ncbi.nlm.nih.gov/#query=100-52-7.

📐 Standards / Guidelines

  1. ICH. 2003. "Stability Testing of New Drug Substances and Products: Q1A(R2)." Geneva: International Council for Harmonisation of Technical Requirements for Pharmaceuticals for Human Use. https://database.ich.org/sites/default/files/Q1A%28R2%29%20Guideline.pdf.
  2. National Fire Protection Association (NFPA). 2024. "NFPA 30: Flammable and Combustible Liquids Code." NFPA, Quincy, MA. https://www.nfpa.org/codes-and-standards/all-codes-and-standards/list-of-codes-and-standards/detail?code=30.
  3. Occupational Safety and Health Administration (OSHA). 2023. "29 CFR 1910.106 — Flammable Liquids." U.S. Department of Labor, Federal Register. https://www.osha.gov/laws-regs/regulations/standardnumber/1910/1910.106.
  4. 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.
  5. 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. https://standards.cencenelec.eu/dyn/www/f?p=205:110:::::FSP_PROJECT,FSP_ORG_ID:38536,6080&cs=1B0DAA8B85DF42E4A2C70E5D71F0BFA32.
  6. European Committee for Standardization (CEN). 2001. "EN 166:2001 — Personal eye-protection — Specifications." CEN, Brussels. https://standards.cencenelec.eu/dyn/www/f?p=CEN:110:0::::FSP_PROJECT:6541&cs=1F1A4E0A78C4DB6A28DBE2E8C29D89DCF.
  7. 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. https://standards.cencenelec.eu/dyn/www/f?p=CEN:110:0::::FSP_PROJECT:21581&cs=1A04A2D3C7CC58E9E6CB58D55F7EBFB7E.
  8. 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.
  9. Occupational Safety and Health Administration (OSHA). 2011. "Personal Protective Equipment — General requirements." U.S. Department of Labor — 29 CFR 1910.132. https://www.osha.gov/laws-regs/regulations/standardnumber/1910/1910.132.

📖 Books

  1. Hansen, Charles M. 2007. Hansen Solubility Parameters: A User's Handbook, 2nd ed.. Boca Raton, FL: CRC Press. https://www.routledge.com/Hansen-Solubility-Parameters-A-Users-Handbook/Hansen/p/book/9780849372483.
  2. Barton, Allan F. M. 1991. CRC Handbook of Solubility Parameters and Other Cohesion Parameters: 2nd ed.. Boca Raton, FL: CRC Press. https://www.routledge.com/CRC-Handbook-of-Solubility-Parameters-and-Other-Cohesion-Parameters/Barton/p/book/9780849301766.
  3. 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://openlibrary.org/isbn/9780471879558.
  4. Rumble, John R., ed. 2019. CRC Handbook of Chemistry and Physics: 100th Edition. Boca Raton, FL: CRC Press. https://hbcp.chemnetbase.com/.
  5. Urben, Peter G. 2017. Bretherick's Handbook of Reactive Chemical Hazards, 8th Edition. Academic Press / Elsevier, Oxford. https://www.sciencedirect.com/book/9780081010594.

📄 Scientific articles (peer-reviewed)

  1. 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.
  2. 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.

🌐 Websites

  1. ECHA. 2023. "Guidance on the Application of the CLP Criteria." European Chemicals Agency. https://echa.europa.eu/guidance-documents/guidance-on-clp.
  2. European Parliament. 2006. "Regulation (EC) No 1907/2006 (REACH)." Official Journal of the European Union L 396: 1–849.
  3. ECHA. 2023. "Candidate List of Substances of Very High Concern for Authorisation." European Chemicals Agency. https://echa.europa.eu/candidate-list-table.
  4. 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.
  5. ECHA. 2017. "Guidance on the Compilation of Safety Data Sheets." Version 3.1. European Chemicals Agency. ECHA-17-G-01-EN. https://echa.europa.eu/documents/10162/23047722/sds_en.pdf.
  6. ECHA. 2022. "Restrictions Under REACH — Annex XVII." European Chemicals Agency. https://echa.europa.eu/substances-restricted-under-reach.
  7. 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.
  8. ECHA. 2020. "Understanding REACH." European Chemicals Agency. https://echa.europa.eu/regulations/reach/understanding-reach.
  9. ECHA — Annex VI to CLP (harmonised classification, ATP 23; 2026-07-07) https://echa.europa.eu/information-on-chemicals/annex-vi-to-clp.
  10. 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/.
  11. European Pharmacopoeia Commission. 2024. "2.2.46 Chromatographic Separation Techniques." In European Pharmacopoeia, 11th ed. Strasbourg: Council of Europe — EDQM. https://www.edqm.eu/en/european-pharmacopoeia-ph-eur-11th-edition.
  12. International Council for Harmonisation (ICH). 2022. "ICH Q2(R2): Validation of Analytical Procedures." International Council for Harmonisation. https://database.ich.org/sites/default/files/ICH_Q2%28R2%29_Guideline_2022_1130.pdf.
  13. International Council for Harmonisation (ICH). 1996. "ICH Q3A: Impurities in New Drug Substances." International Council for Harmonisation. https://database.ich.org/sites/default/files/Q3A%28R2%29%20Guideline.pdf.
  14. 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.
  15. Kolthoff, Izaak Maurits, and Philip J. Elving, eds. 1978. Treatise on Analytical Chemistry, Part I: Theory and Practice. 2nd ed. New York: Wiley-Interscience.
  16. Skoog, Douglas A., F. James Holler, and Stanley R. Crouch. 2018. Principles of Instrumental Analysis. 7th ed. Boston: Cengage Learning.
  17. Christian, Gary D., Purnendu K. Dasgupta, and Kevin A. Schug. 2014. Analytical Chemistry. 7th ed. Hoboken, NJ: Wiley.
  18. EURACHEM/CITAC. 2012. "Quantifying Uncertainty in Analytical Measurement." 3rd ed. EURACHEM/CITAC Guide CG 4. https://www.eurachem.org/images/stories/Guides/pdf/QUAM2012_P1.pdf.
  19. 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.
  20. 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/.
  21. Grubbs, Frank E. 1950. "Sample Criteria for Testing Outlying Observations." Annals of Mathematical Statistics 21 (1): 27–58.
  22. Dixon, Wilfrid J. 1950. "Analysis of Extreme Values." Annals of Mathematical Statistics 21 (4): 488–506.
  23. Snedecor, George W., and William G. Cochran. 1989. Statistical Methods. 8th ed. Ames, IA: Iowa State University Press.
  24. Student [William Sealy Gosset]. 1908. "The Probable Error of a Mean." Biometrika 6 (1): 1–25.
  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.
  26. 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.
  27. 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.
  28. International Air Transport Association. 2026. Dangerous Goods Regulations (DGR). 67th ed. Montreal: IATA. https://www.iata.org/en/programs/cargo/dgr/.
  29. International Maritime Organization. 2024. International Maritime Dangerous Goods (IMDG) Code, 2024 Edition (Amendment 42-24). London: IMO. https://www.imo.org/en/OurWork/Safety/Pages/DangerousGoods-default.aspx.
  30. United Nations. 2025. Recommendations on the Transport of Dangerous Goods: Model Regulations (Orange Book). 24th revised ed. ST/SG/AC.10/1/Rev.24. New York and Geneva: United Nations. https://unece.org/transport/dangerous-goods/un-model-regulations.
  31. International Civil Aviation Organization. 2025. Technical Instructions for the Safe Transport of Dangerous Goods by Air (Doc 9284). 2025–2026 ed. Montreal: ICAO. https://www.icao.int/safety/DangerousGoods/Pages/technical-instructions.aspx.
  32. European Commission. 2014. "Commission Decision 2014/955/EU on the list of waste pursuant to Directive 2008/98/EC." Official Journal of the European Union. https://eur-lex.europa.eu/legal-content/EN/TXT/?uri=CELEX:32014D0955.
  33. 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
  34. 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
  35. Polska — Sejm RP. 2012. "Ustawa z dnia 14 grudnia 2012 r. o odpadach." Dz.U. 2013 poz. 21 (z późn. zm.). https://isap.sejm.gov.pl/isap.nsf/DocDetails.xsp?id=WDU20130000021. National rules — Poland
  36. Furr, A. Keith, ed.. 2000. "CRC Handbook of Laboratory Safety." CRC Press.
  37. Pohanish, Richard P.. 2017. "Sittig's Handbook of Toxic and Hazardous Chemicals and Carcinogens." Elsevier.
  38. Lewis, Richard J.. 2012. "Sax's Dangerous Properties of Industrial Materials." Wiley.
  39. NIOSH. 2024. "Pocket Guide to Chemical Hazards." U.S. Department of Health and Human Services. https://www.cdc.gov/niosh/npg/.
  40. OSHA. 2024. "Occupational Chemical Database — Hazardous Waste Operations (HAZWOPER)." Occupational Safety and Health Administration. https://www.osha.gov/chemicaldata.
  41. European Parliament and Council. 2008. "Directive 2008/98/EC on waste (Waste Framework Directive)." Official Journal of the European Union L 312/3. https://eur-lex.europa.eu/legal-content/EN/TXT/?uri=CELEX:32008L0098.
  42. European Parliament and Council. 2009. "Regulation (EC) No 1272/2008 (CLP) on classification, labelling and packaging of substances and mixtures." Official Journal of the European Union L 353. https://eur-lex.europa.eu/legal-content/EN/TXT/?uri=CELEX:32008R1272.
  43. United Nations Economic Commission for Europe (UNECE). 2023. "European Agreement concerning the International Carriage of Dangerous Goods by Road (ADR 2025)." UNECE. https://unece.org/transport/standards/transport/dangerous-goods/adr-2025.
  44. IPCS INCHEM. 2024. "International Programme on Chemical Safety — Waste Management Guidelines." WHO/UNEP/ILO. https://www.inchem.org/.
  45. European Parliament and Council. 2006. "Regulation (EC) No 1013/2006 on Shipments of Waste." Official Journal of the European Union L 190: 1–98. https://eur-lex.europa.eu/legal-content/EN/TXT/?uri=CELEX:32006R1013.
  46. International Council for Harmonisation (ICH). 2000. "Q7 Good Manufacturing Practice Guide for Active Pharmaceutical Ingredients." ICH Expert Working Group. https://database.ich.org/sites/default/files/Q7%20Guideline.pdf.
  47. 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.
  48. 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.
  49. International Council for Harmonisation (ICH). 2003. "ICH Q1A(R2): Stability Testing of New Drug Substances and Products." International Council for Harmonisation. https://database.ich.org/sites/default/files/Q1A%28R2%29%20Guideline.pdf.
  50. International Council for Harmonisation (ICH). 2006. "ICH Q3A(R2): Impurities in New Drug Substances." ICH. https://database.ich.org/sites/default/files/Q3A%28R2%29%20Guideline.pdf.
  51. International Council for Harmonisation (ICH). 1999. "ICH Q6A: Specifications for New Drug Substances and Products." ICH. https://database.ich.org/sites/default/files/Q6A%20Guideline.pdf.
  52. International Council for Harmonisation (ICH). 2008. "ICH Q10: Pharmaceutical Quality System." ICH. https://database.ich.org/sites/default/files/Q10%20Guideline.pdf.
  53. U.S. Food and Drug Administration. 2024. "21 CFR Part 211: Current Good Manufacturing Practice for Finished Pharmaceuticals." US Code of Federal Regulations. https://www.ecfr.gov/current/title-21/chapter-I/subchapter-C/part-211.
  54. 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. https://www.ema.europa.eu/en/documents/scientific-guideline/guideline-process-validation-finished-products-information-data-be-provided-regulatory-submissions-revision-1_en.pdf.
  55. United States Pharmacopeial Convention. 2024. "United States Pharmacopeia and National Formulary, USP 47-NF 42." USP. https://www.uspnf.com/.
  56. European Pharmacopoeia Commission. 2024. "European Pharmacopoeia 11th Edition." Council of Europe — EDQM. https://www.edqm.eu/en/european-pharmacopoeia-ph-eur-11th-edition.
  57. 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.
  58. International Pharmaceutical Excipients Council (IPEC) and Pharmaceutical Quality Group (PQG). 2017. "Joint IPEC-PQG Good Manufacturing Practices Guide for Pharmaceutical Excipients." IPEC-Americas. https://ipecamericas.org/sites/default/files/IPECPQGGMPGuide2017.pdf.
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📜 License & provenance
COMPUTED — PubChem3D · 3D conformer computed by PubChem using OMEGA; not an experimental structure.
Model
Benzaldehyde · 100-52-7
InChIKey
HUMNYLRZRPPJDN-UHFFFAOYSA-N
License
CC BY-SA 4.0 International
Attribution
MolGod Scientific — Benzaldehyde (CAS 100-52-7)
License & provenance record
Benzaldehyde (CAS 100-52-7) →
MolGod molecule record
Benzaldehyde →
Source data
PubChem CID 240 ↗
Model information
STL generated by MolGod · MolGod STL Exporter build 48804cd20b0d · generated 2026-10-14
SHA-256 (STL)
c669f626ca909c0a52fcf28130f7c4f7ef74afc582d43c1d579b95e0ad7184dc
MD5 (STL)
1ecc5602402b24427f561e13cfbd795e
MolGod Identification Number
MG_903-981-510-95
Transformation
MolGod Scientific ball-and-stick mesh
Changes
Converted into a triangulated molecular mesh; atomic coordinates and connectivity unchanged.
Wikimedia Commons
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