perfluorooctane sulfonic acid (CAS 1763-23-1) — Safety Data Sheet

EU · REACH Annex XIVMolGod Score: Primary

Safety data sheet documentation for perfluorooctane sulfonic acid (CAS 1763-23-1), compiled to REACH Annex II with classification read against the harmonised entry in CLP Annex VI (H351, H360D, H362, H332). 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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REACH 2020/878
v4 · 07.09.2026
Download Safety Data Sheet (PDF)CAS 1763-23-1 · PDF · 178 KBWorking draft — not yet reviewed and approved.

Section 9 — physicochemical properties: 5 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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What you receive — and what this is not

What you receive

  • A digital PDF safety data sheet in the sixteen-section structure of REACH Annex II (Regulation 1907/2006).
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What this is not

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Where the available evidence does not support a value, the sheet states that the value is not established rather than estimating one. A field with no recorded source is marked as such.

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🧬 3D Molecule Visualizer
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3D model Perfluorooctanesulfonic acid, CAS 1763-23-1, molecular formula C8HF17O3S, molar mass 500.13 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 1763-23-1
📊 Physicochemical properties

Quick Reference

Formula: C8HF17O3S
MW: 500.13 g/mol
CAS: 1763-23-1
Appearance: Liquid
🔬 Advanced Properties

Chemical Identifiers

SMILES: C(C(C(C(C(F)(F)S(=O)(=O)O)(F)F)(F)F)(F)F)(C(C(C(F)(F)F)(F)F)(F)F)(F)F

Last updated: 2026-08-25

Chemical Overview: Perfluorooctanesulfonic acid
Molecular formulaC8HF17O3S[1]
Molecular weight500.13 g/mol[1]
LogP (lipophilicity)5[1]
IUPAC name1,1,2,2,3,3,4,4,5,5,6,6,7,7,8,8,8-heptadecafluorooctane-1-sulfonic acid[1]
SMILESC(C(C(C(C(F)(F)S(=O)(=O)O)(F)F)(F)F)(F)F)(C(C(C(F)(F)F)(F)F)(F)F)(F)F[1]
InChIKeyYFSUTJLHUFNCNZ-UHFFFAOYSA-N[1]

Synonyms: Perfluorooctanesulfonic acid · 1763-23-1 · PFOS · Perfluorooctane sulfonic acid · Perfluorooctylsulfonic acid

Data sources: PubChem (NLM/NIH)
Last updated: 2026-08-25

📚 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]CrossRef2026
(2026). "Review for "Remediation of Perfluorooctane Sulfonic Acid (PFOS) using Supported Lipid Bilayers on Mesoporous-SiO2"". https://doi.org/10.1039/d6ta01843b/v2/review1
[2]CrossRef2026
(2026). "Review for "Remediation of Perfluorooctane Sulfonic Acid (PFOS) using Supported Lipid Bilayers on Mesoporous-SiO2"". https://doi.org/10.1039/d6ta01843b/v2/review2
[3]CrossRef2026
(2026). "Review for "Remediation of Perfluorooctane Sulfonic Acid (PFOS) using Supported Lipid Bilayers on Mesoporous-SiO2"". https://doi.org/10.1039/d6ta01843b/v1/review1
[4]CrossRef2026
(2026). "Review for "Remediation of Perfluorooctane Sulfonic Acid (PFOS) using Supported Lipid Bilayers on Mesoporous-SiO2"". https://doi.org/10.1039/d6ta01843b/v1/review2
[5]PubMed2026
Chen T, Liang H, Huang Q et al.. (2026). "Elucidating the molecular mechanisms of perfluorodecanoic acid and perfluorooctane sulfonic acid on glioblastoma through network toxicology and bioinformatics
[6]PubMed2026
Yu J, Huang S, Zhang J et al.. (2026). "Bile acids insufficiency links perfluorooctane sulfonate-induced oxidative stress-mediated fatty liver with osteoarthritis.". Journal of hazardous materials. ht
[7]PubMed2025
Liu J, Pang X, Li X et al.. (2025). "Perfluorooctanoic acid and perfluorooctanesulfonic acid induce resistance to chemotherapy in colorectal cancer.". Journal of hazardous materials. https://doi.org/1
[8]PubMed2025
You Y, Guan X, Zhao H et al.. (2025). "Associations of PFOA and PFOS exposure with liver injury: Evidence from Two Population Studies and integrative adverse outcome pathway analysis.". Environmental
📚 Scientific references (Chicago Author-Date) 13 refs · 2 baz

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

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

  1. db:crossref (2026). "Review for "Remediation of Perfluorooctane Sulfonic Acid (PFOS) using Supported Lipid Bilayers on Mesoporous-SiO2"". https://doi.org/10.1039/d6ta01843b/v2/review1 →
  2. db:crossref (2026). "Review for "Remediation of Perfluorooctane Sulfonic Acid (PFOS) using Supported Lipid Bilayers on Mesoporous-SiO2"". https://doi.org/10.1039/d6ta01843b/v2/review2 →
  3. db:crossref (2026). "Review for "Remediation of Perfluorooctane Sulfonic Acid (PFOS) using Supported Lipid Bilayers on Mesoporous-SiO2"". https://doi.org/10.1039/d6ta01843b/v1/review1 →
  4. db:crossref (2026). "Review for "Remediation of Perfluorooctane Sulfonic Acid (PFOS) using Supported Lipid Bilayers on Mesoporous-SiO2"". https://doi.org/10.1039/d6ta01843b/v1/review2 →
  5. db:pubmed Yu J, Huang S, Zhang J et al.. (2026). "Bile acids insufficiency links perfluorooctane sulfonate-induced oxidative stress-mediated fatty liver with osteoarthritis.". Journal of hazardous materials. https://doi.org/10.1016/j.jhazmat.2025.140750 →
  6. db:pubmed Liu J, Pang X, Li X et al.. (2025). "Perfluorooctanoic acid and perfluorooctanesulfonic acid induce resistance to chemotherapy in colorectal cancer.". Journal of hazardous materials. https://doi.org/10.1016/j.jhazmat.2025.140583 →
  7. db:pubmed You Y, Guan X, Zhao H et al.. (2025). "Associations of PFOA and PFOS exposure with liver injury: Evidence from Two Population Studies and integrative adverse outcome pathway analysis.". Environmental pollution (Barking, Essex : 1987). https://doi.org/10.1016/j.envpol.2025.127059 →
  8. db:pubmed Li M, Xu C, Li L et al.. (2025). "Placentation Disruption by Perfluorooctanoic Acid and Perfluorooctanesulfonate in Human Trophoblast Organoids.". Environmental science & technology. https://doi.org/10.1021/acs.est.5c07230 →
  9. db:pubmed de Macedo GT, Claro MT, Ferreira SA et al.. (2025). "Mitochondrial and inflammatory dysfunctions underlie perfluorooctane sulfonic acid (PFOS)-induced neurotoxicity in adult zebrafish.". The Science of the total environment. https://doi.org/10.1016/j.scitotenv.2025.179972 →
  10. db:crossref Yue Zhang, Ni Yan, Jingrui Li et al.. (2024). "The Co-Transport of Perfluorooctane Sulfonic Acid (Pfos) and its Precursor Perfluorooctane Sulfonamide (Pfosa) in Saturated Porous Media". https://doi.org/10.2139/ssrn.4780900 →
  11. db:pubmed Liang P, Tian K, Yang W et al.. (2024). "ACSL4-mediated ZIP7-VDAC3 interaction regulates endoplasmic reticulum-mitochondria iron transfer in hepatocytes under PFOS exposure.". The Science of the total environment. https://doi.org/10.1016/j.scitotenv.2024.177679 →
  12. db:crossref Nicole M. Dennis, Adcharee Karnjanapiboonwong, Seenivasan Subbiah et al.. (2020). "Chronic Reproductive Toxicity of Perfluorooctane Sulfonic Acid and a Simple Mixture of Perfluorooctane Sulfonic Acid and Perfluorohexane Sulfonic Acid to Northern Bobwhite Quail (Colinus virginianus)". Environmental Toxicology and Chemistry. https://doi.org/10.1002/etc.4703 →
  13. db:crossref (0). "TOX-96: 1-Perfluorobutanesulfonic acid (375-73-5), Potassium perfluorohexanesulfonate (3871-99-6), Perfluorooctane sulfonate (1763-23-1), WY-14643 (50892-23-4)". https://doi.org/10.22427/ntp-other-1 →
Regulatory status of the substance
Inventories: EU / REACH Annex XIV. Regulatory information — does not restrict purchase in this store.
🧮 Stoichiometry Calculator
🧪 Chemical Data
CAS Number
1763-23-1
Molecular formula
C8HF17O3S
Molar mass
500.13 g/mol
IUPAC name (EN)
1,1,2,2,3,3,4,4,5,5,6,6,7,7,8,8,8-heptadecafluorooctane-1-sulfonic acid
SMILES
C(C(C(C(C(F)(F)S(=O)(=O)O)(F)F)(F)F)(F)F)(C(C(C(F)(F)F)(F)F)(F)F)(F)F
InChIKey
YFSUTJLHUFNCNZ-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.

Filter:
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📡 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.

🔍 External identifiers
12 of 16 ID systems75%
DatabaseIdentifierActions
CAS Registry Number1763-23-1Open →
PubChem CID74483[1]Open →
InChIKeyYFSUTJLHUFNCNZ-UHFFFAOYSA-N[1]Open →
InChIInChI=1S/C8HF17O3S/c9-1(10,3(13,14)5(17,18)7(21,…[1]
SMILESC(C(C(C(C(F)(F)S(=O)(=O)O)(F)F)(F)F)(F)F)(C(C(C(…[1]
EC Number217-179-8[2]Open →
ChEMBLCHEMBL1876554[3]Open →
KEGG CompoundC18142Open →
HMDBHMDB0059586Open →
ChemSpider67068[4]Open →
UNII (FDA)9H2MAI21CLOpen →
WikiData QIDQ902094Open →

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 (5)

  1. ★★☆☆☆ CROSSREF 🔓 OPEN ❓ unverified Anonymous. "Photodegradation of Perfluorooctanesulfonic Acid on Fe-Zeolites in Water.". https://doi.org/10.1021/acs.est.0c04558.s001. link [accessed: 2026-10-11] CC0 (metadata)
  2. ★★☆☆☆ CROSSREF 🔓 OPEN ❓ unverified Anonymous. "Pathways for the Mineralization of Perfluorooctanesulfonic Acid under a Smoldering Reductive Atmosphere.". https://doi.org/10.1021/acs.est.5c12435.s001. link [accessed: 2026-10-11] CC0 (metadata)
  3. ★★☆☆☆ CROSSREF 🔓 OPEN ❓ unverified Anonymous. "Perfluorooctanesulfonic Acid and Perfluorooctanoic Acid Promote Migration of Three-Dimensional Colorectal Cancer Spheroids.". https://doi.org/10.1021/acs.est.3c04844.s001. link [accessed: 2026-10-11] CC0 (metadata)
  4. ★★☆☆☆ CROSSREF 🔓 OPEN ❓ unverified Anonymous. "Investigation of Perfluorooctanesulfonic Acid (PFOS) and Perfluorooctanoic Acid (PFOA) Isomer Profiles in Naturally Contaminated Food Samples.". https://doi.org/10.1021/acs.jafc.5c03790.s001. link [accessed: 2026-10-11] CC0 (metadata)
  5. ★★☆☆☆ CROSSREF 🔓 OPEN ❓ unverified Anonymous. "Thermal Decomposition of Perfluorooctanesulfonic Acid (PFOS) in the Presence of Water Vapor.". https://doi.org/10.1021/acs.iecr.2c02463.s001. link [accessed: 2026-10-11] CC0 (metadata)
📡 Spectroscopy — CAS 1763-23-1
📊 Spectroscopic spectra databases — inline data 9 sources

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.

IR IR (Infrared) — NIST WebBook
Public domain (US Federal)
▶ Click to load spectrum
🔗 Source
— points
📚 NIST Chemistry WebBook, SRD 69
MS (NIST) Mass Spectrum (EI) — NIST WebBook
Public domain (US Federal)
▶ Click to load spectrum
🔗 Source
— points
📚 NIST Standard Reference Database 1A
UV-Vis UV/Visible Absorption — NIST WebBook
Public domain (US Federal)
▶ Click to load spectrum
🔗 Source
— points
📚 NIST Chemistry WebBook, SRD 69
¹H NMR NMR (¹H, ¹³C) — NMRShiftDB
nmrshiftdb2 Database License
https://nmrshiftdb.nmr.uni-koeln.de/nmrshiftdbhtml/nmrshiftdb2datalicense.txt
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.
▶ Click to load spectrum
🔗 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.
— points
📚 Steinbeck C et al. (2003) J. Chem. Inf. Comput. Sci. 43(1):10–16 DOI: 10.1021/ci025588g
MS (MoNA) MoNA — MassBank of North America
CC-BY 4.0
▶ Click to load spectrum
🔗 Source
— points
📚 MassBank of North America (UC Davis) DOI: 10.1002/jms.1777
IR/NMR/MS (SDBS) SDBS — Spectral Database for Organic Compounds (Japan AIST)
Free for non-commercial

Reference source — no public API. Open in an external database:

🔗 IR/NMR/MS (SDBS) →
📚 SDBSWeb: https://sdbs.db.aist.go.jp (AIST, Japan)
JP Monograph Japanese Pharmacopoeia — Monographs
Reference only

Reference source — no public API. Open in an external database:

🔗 JP Monograph →
📚 Japanese Pharmacopoeia 18th Edition (2021)
WHO INN WHO — International Nonproprietary Names
WHO Model Lists (free)

Reference source — no public API. Open in an external database:

🔗 WHO INN →
📚 WHO INN Programme
DOAJ DOAJ — Directory of Open Access Journals
OA journal index (mixed)

Reference source — no public API. Open in an external database:

🔗 DOAJ →
📚 DOAJ — doaj.org
🔬 Interactive spectra (live — NIST / MoNA / NMRShiftDB / SDBS) (2)

Data retrieved live from multiple sources (priority chain). JCAMP-DX / CSV / PNG available for download under each spectrum.

IR — Fourier-transform infrared

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MS — Mass spectrometry (EI 70eV)

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Structural properties

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❓ Frequently asked questions (3)
What is Perfluorooctanesulfonic acid?
Perfluorooctanesulfonic acid (CAS 1763-23-1) is a chemical compound with the molecular formula C8HF17O3S and a molecular weight of 500.13 g/mol.
Helpful?
What is the CAS number of Perfluorooctanesulfonic acid?
The CAS number for Perfluorooctanesulfonic acid is 1763-23-1.
Helpful?
What is the chemical formula of Perfluorooctanesulfonic acid?
The molecular formula of Perfluorooctanesulfonic acid is C8HF17O3S.
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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: 74483

🔄 Concentration unit converter LIVE

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

MW: 500.13 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.811-2008
    → 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
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🛡️ Safety — CAS 1763-23-1
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).

⚠️ Danger
GHS07 — Irritant / harmful
GHS07 Irritant / harmful
GHS08 — Health hazard
GHS08 Health hazard
GHS09 — Environmental hazard
GHS09 Environmental hazard

🚨 Hazard statements (H)

  • H351 — Suspected of causing cancer
  • H360D — May damage the unborn child
  • H362 — May cause harm to breast-fed children
  • H332 — Harmful if inhaled
  • H302 — Harmful if swallowed
  • H372 — Causes damage to organs through prolonged or repeated exposure
  • 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: 607-624-00-8.

Reference (Chicago): European Chemicals Agency. "perfluorooctane sulfonic acid; heptadecafluorooctane-1-sulfonic acid, Index No. 607-624-00-8." 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: 1763-23-1 · 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.

Step 1: Choose a buffer system

📜 Recipe history (last 10)
Pharmacological Status

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ChEMBL CHEMBL1876554 ↗

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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.

🧪 Solubility and solvent compatibility
Molecule
Perfluorooctanesulfonic acid
Formula
C8HF17O3S
logP (XLogP3)
5.00
Mass (g/mol)
500.13
Polarity
Hydrophobic (non-polar)

⚠️ GC estimate (Hoftyzer–Van Krevelen). No literature HSP data for this CAS — precision ±2 MPa½. Verify experimentally.

Solvent compatibility table not available for this substance.
The Hansen parameters fall outside the range of the method, so the distance Ra cannot be calculated, and the database holds no solubility measurement to put in its place. Rather than eleven ratings with nothing behind them, we show none. Base the solvent choice on the safety data sheet and on experimental data.
📚 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 1763-23-1 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 Perfluorooctanesulfonic acid 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)
Perfluorooctane Sulfonic Acid• PFOS / Perfluorooctylsulfonic acid• IUPAC: 1,1,2,2,3,3,4,4,5,5,6,6,7,7,8,8,8-heptadecafluorooctane-1-sulfonic acid• CAS: 1763-23-1• EC: 217-179-8• Formula: C8HF17O3S• Mass: 500.13 g/molDANGERGHS HAZARD STATEMENTS:H351 H360D H362 H332 H302 H372 H411P203: Obtain, read and follow all safety instructions before useFOR LABORATORY USE ONLY!Nonsensia Ltd124-128 City Road, EC1V 2NX London[email protected]molgod.orgBatch No.: Net Mass:
Lipinski descriptors (structure)

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.

MW500.1LogP5HBD1HBA20RotB7TPSA62.8 Ų
✗ Lipinski Ro5 (MW=500, LogP=5, HBA=20)✓ Veber✓ Egan✗ Ghose (MW=500)✗ REOS (MW=500, HBA=20)✗ Lead-like Ro3 (MW=500, LogP=5, HBA=20, RotB=7)
PropertyValueRating
Absorption (GI)high✓
BBB permeabilityno
Bioavailability (Daina 2017)
17%
CYP450 profileCYP1A2 non-inhibitorCYP2C9 non-inhibitorCYP2C19 non-inhibitorCYP2D6 non-inhibitorCYP3A4 inhibitor
PAINS alerts0✓
Brenk alerts0✓
pKa (pH 7.4)1 (experimental)
hERG (cardiotox.)✓ no
P-gp substrate—
Ames mutagenicity✓ no
DILI (hepatotox.)—
LogS (aq. solub.)—
Sources (ADMET methodology)
  1. 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.
  2. 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.
  3. 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.
  4. Egan, William J., and Gregory Lauri. 2002. "Prediction of intestinal permeability." Advanced Drug Delivery Reviews 54 (3): 273-289.
  5. 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.
  6. 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.
  7. 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.
  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.
  9. Hopkins, Andrew L., and Colin R. Groom. 2002. "The Druggable Genome." Nature Reviews Drug Discovery 1 (9): 727-730.
  10. 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.
  11. 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.
  12. 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.
  13. Hann, Michael M. 2011. "Molecular Obesity, Potency and Other Addictions in Drug Discovery." MedChemComm 2 (5): 349-355.
  14. 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.
  15. 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.
  16. 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.
  17. 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.
  18. 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.
  19. Bemis, Guy W., and Mark A. Murcko. 1996. "The Properties of Known Drugs. 1. Molecular Frameworks." Journal of Medicinal Chemistry 39 (15): 2887-2893.
  20. Schomburg, Karen T., and Matthias Rarey. 2014. "What Is the Potential of Structure-Based Target Prediction Methods?" Future Medicinal Chemistry 6 (17): 1987-1989.
  21. (2026). "Review for "Remediation of Perfluorooctane Sulfonic Acid (PFOS) using Supported Lipid Bilayers on Mesoporous-SiO2"". https://doi.org/10.1039/d6ta01843b/v2/review1
  22. (2026). "Review for "Remediation of Perfluorooctane Sulfonic Acid (PFOS) using Supported Lipid Bilayers on Mesoporous-SiO2"". https://doi.org/10.1039/d6ta01843b/v2/review2
  23. (2026). "Review for "Remediation of Perfluorooctane Sulfonic Acid (PFOS) using Supported Lipid Bilayers on Mesoporous-SiO2"". https://doi.org/10.1039/d6ta01843b/v1/review1
  24. (2026). "Review for "Remediation of Perfluorooctane Sulfonic Acid (PFOS) using Supported Lipid Bilayers on Mesoporous-SiO2"". https://doi.org/10.1039/d6ta01843b/v1/review2
  25. Yu J, Huang S, Zhang J et al.. (2026). "Bile acids insufficiency links perfluorooctane sulfonate-induced oxidative stress-mediated fatty liver with osteoarthritis.". Journal of hazardous materials. https://doi.org/10.1016/j.jhazmat.2025.140750
  26. Liu J, Pang X, Li X et al.. (2025). "Perfluorooctanoic acid and perfluorooctanesulfonic acid induce resistance to chemotherapy in colorectal cancer.". Journal of hazardous materials. https://doi.org/10.1016/j.jhazmat.2025.140583
  27. You Y, Guan X, Zhao H et al.. (2025). "Associations of PFOA and PFOS exposure with liver injury: Evidence from Two Population Studies and integrative adverse outcome pathway analysis.". Environmental pollution (Barking, Essex : 1987). https://doi.org/10.1016/j.envpol.2025.127059
  28. Li M, Xu C, Li L et al.. (2025). "Placentation Disruption by Perfluorooctanoic Acid and Perfluorooctanesulfonate in Human Trophoblast Organoids.". Environmental science & technology. https://doi.org/10.1021/acs.est.5c07230
  29. de Macedo GT, Claro MT, Ferreira SA et al.. (2025). "Mitochondrial and inflammatory dysfunctions underlie perfluorooctane sulfonic acid (PFOS)-induced neurotoxicity in adult zebrafish.". The Science of the total environment. https://doi.org/10.1016/j.scitotenv.2025.179972
  30. Yue Zhang, Ni Yan, Jingrui Li et al.. (2024). "The Co-Transport of Perfluorooctane Sulfonic Acid (Pfos) and its Precursor Perfluorooctane Sulfonamide (Pfosa) in Saturated Porous Media". https://doi.org/10.2139/ssrn.4780900
  31. Liang P, Tian K, Yang W et al.. (2024). "ACSL4-mediated ZIP7-VDAC3 interaction regulates endoplasmic reticulum-mitochondria iron transfer in hepatocytes under PFOS exposure.". The Science of the total environment. https://doi.org/10.1016/j.scitotenv.2024.177679
  32. Nicole M. Dennis, Adcharee Karnjanapiboonwong, Seenivasan Subbiah et al.. (2020). "Chronic Reproductive Toxicity of Perfluorooctane Sulfonic Acid and a Simple Mixture of Perfluorooctane Sulfonic Acid and Perfluorohexane Sulfonic Acid to Northern Bobwhite Quail (Colinus virginianus)". Environmental Toxicology and Chemistry. https://doi.org/10.1002/etc.4703
  33. (0). "TOX-96: 1-Perfluorobutanesulfonic acid (375-73-5), Potassium perfluorohexanesulfonate (3871-99-6), Perfluorooctane sulfonate (1763-23-1), WY-14643 (50892-23-4)". https://doi.org/10.22427/ntp-other-1
  34. Anonymous. "Photodegradation of Perfluorooctanesulfonic Acid on Fe-Zeolites in Water.". https://doi.org/10.1021/acs.est.0c04558.s001. [DOI ↗]
  35. Anonymous. "Pathways for the Mineralization of Perfluorooctanesulfonic Acid under a Smoldering Reductive Atmosphere.". https://doi.org/10.1021/acs.est.5c12435.s001. [DOI ↗]
  36. Anonymous. "Perfluorooctanesulfonic Acid and Perfluorooctanoic Acid Promote Migration of Three-Dimensional Colorectal Cancer Spheroids.". https://doi.org/10.1021/acs.est.3c04844.s001. [DOI ↗]
  37. Anonymous. "Investigation of Perfluorooctanesulfonic Acid (PFOS) and Perfluorooctanoic Acid (PFOA) Isomer Profiles in Naturally Contaminated Food Samples.". https://doi.org/10.1021/acs.jafc.5c03790.s001. [DOI ↗]
  38. Anonymous. "Thermal Decomposition of Perfluorooctanesulfonic Acid (PFOS) in the Presence of Water Vapor.". https://doi.org/10.1021/acs.iecr.2c02463.s001. [DOI ↗]
  39. 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 ↗]
  40. Kim, Sunghwan, Jie Chen, Tiejun Cheng, et al. 2023. "PubChem 2023 update." Nucleic Acids Research 51 (D1): D1373-D1380. [DOI ↗]
  41. Kim, Sunghwan, Tiejun Cheng, Jianyong He, Chen Cheng, et al. 2021. "PubChem Protein, Pathway, Reaction, and Disease Specifications." Journal of Cheminformatics 13: 16. [DOI ↗]
  42. Hähnke, Volker D., Sunghwan Kim, and Evan E. Bolton. 2018. "PubChem chemical structure standardization." Journal of Cheminformatics 10: 36. [DOI ↗]
  43. Wang, Yanli, Stephen H. Bryant, Tiejun Cheng, Jiyao Wang, et al. 2017. "PubChem BioAssay: 2017 update." Nucleic Acids Research 45 (D1): D955-D963. [DOI ↗]
  44. 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 ↗]
  45. Wilkinson, Mark D., et al. 2016. "The FAIR Guiding Principles for scientific data management and stewardship." Scientific Data 3: 160018. [DOI ↗]
  46. 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.
  47. ECHA. 2024. "REACH Guidance." European Chemicals Agency. ↗
  48. 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. ↗
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📚 Scientific literature overview — CAS 1763-23-1
⭐ Key findings (scientific literature) 17 publications
🏆 CAS 1763-23-1 — multi-criteria ranking (W12): 30% citations · 20% recency · 20% topic · 15% historical · 15% open access.
  1. #1
    Polycarp C. Ofoegbu, Dane C. Wagner, Oluwasegun Michael Abolade et al. (2022) · Journal of Hazardous Materials Advances
    Why it matters: Open access
    SCORE 10.09 Mechanism Citations: 25 Open Access DOI ↗
  2. #2
    et al. (2025) · Small
    Why it matters: Recent (2025) · open access
    SCORE 9.76 Mechanism Citations: 7 Open Access DOI ↗ PubMed ↗
  3. #3
    Josiane Weber Tessmann, Pan Deng, Jerika Durham et al. (2024) · Chemosphere
    Why it matters: Recent (2024) · open access
    SCORE 9.59 Mechanism Citations: 12 Open Access DOI ↗
  4. #4
    et al. (2025) · Chemical Research in Toxicology
    Why it matters: Recent (2025) · open access
    SCORE 9.15 Mechanism Citations: 4 Open Access DOI ↗ PubMed ↗
  5. #5
    Owen R, de Macedo G, Nerlich J et al. (2025) · Toxicological sciences : an official journal of the Society of Toxicology
    Why it matters: Recent (2025) · open access
    SCORE 9.11 Mechanism Citations: 8 Open Access DOI ↗ PubMed ↗
  6. #6
    Samuel Thomas, William A. Ricke, Lingjun Li (2023) · Chemical Research in Toxicology
    Why it matters: Recent (2023) · open access
    SCORE 9.01 Mechanism Citations: 8 Open Access DOI ↗
  7. #7
    et al. (2025) · Journal of Environmental Health Science and Engineering
    Why it matters: Recent (2025) · open access
    SCORE 8.06 Pharmacology Citations: 3 Open Access DOI ↗ PubMed ↗
  8. #8
    Liu X, Wang X, Wang L (2025) · Ecotoxicology and environmental safety
    Why it matters: Recent (2025) · open access
    SCORE 7.68 Mechanism Citations: 2 Open Access DOI ↗ PubMed ↗
  9. #9
    et al. (2025) · Toxicological Sciences
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    SCORE 7.15 Industrial Citations: 1 Open Access DOI ↗ PubMed ↗
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    SCORE 7.05 Mechanism Open Access DOI ↗ PubMed ↗
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    SCORE 7.05 Mechanism Open Access DOI ↗ PubMed ↗
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    Why it matters: Recent (2026)
    SCORE 6.5 Mechanism Citations: 1 DOI ↗ PubMed ↗
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    SCORE 6.25 Mechanism Open Access DOI ↗ PubMed ↗
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    SCORE 4 Mechanism DOI ↗ PubMed ↗

Why this page can be checked

Identity

CAS, EC and molecular formula, resolved across the identifier systems a buyer uses. The count of systems resolved is shown, so you can see how well characterised this substance is rather than assuming.

Data

Every physicochemical value carries the source it came from and the date that source was read. Open any of them.

Classification

Read against the harmonised entry where one exists, with the index number stated. Self-classification is shown separately and labelled.

Regulatory

Inventory, restriction, authorisation and candidate-list status, each stated individually. Where a status is not established, this page says so — it never says no restrictions apply.

Documentation

Which documents exist, at what review level, in which languages, and when each was issued.

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Who is selling this, and what they have published about themselves.

Nothing on this page is a certification. It is a record you can audit.

Two guarantees, both with their limits stated

The Gap Report Guarantee

If the available evidence cannot support a defensible document for your CAS number and product specification, we will not invent the missing values. You receive a documented gap report and choose: a refund, store credit, or the report on its own.

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The Re-issue Promise

If a signed card is rejected by an authority or by a customer’s compliance officer on one of the points we checked and reported as passed, we re-issue it corrected at no charge and credit the original fee.

This covers the checks we performed and named. It does not cover registration status, tonnage, or your role in the supply chain — those are not ours to hold, and a guarantee that pretended otherwise would be worth nothing.

This page describes the regulatory documentation issued for perfluorooctane sulfonic acid (CAS 1763-23-1). The item supplied is a document, not the substance.

perfluorooctane sulfonic acid (CAS 1763-23-1) at a glance

  • Substance – perfluorooctane sulfonic acid
  • CAS number – 1763-23-1
  • EC number – 217-179-8 [1];220-527-1 [2];274-460-8 [3];249-415-0 [4];249-644-6 [5]
  • CLP Annex VI index number – 607-624-00-8
  • Also known as – heptadecafluorooctane-1-sulfonic acid
  • Hazard statements – H351 (suspected of causing cancer); H360D (may damage the unborn child); H362 (may cause harm to breast-fed children); H332 (harmful if inhaled); H302 (harmful if swallowed); H372 (causes damage to organs through prolonged or repeated exposure)
  • Hazard classes – Carc. 2, Repr. 1B, Lact., Acute Tox. 4 *, Acute Tox. 4 *, STOT RE 1
  • Label pictograms – GHS07, GHS08, GHS09
  • Signal word – Danger
  • Entry current as of – ATP01
  • CMR classification – yes, classified as carcinogenic, mutagenic or toxic for reproduction
  • 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.

Aquatic hazard and disposal

Aquatic hazard classification (H411) for CAS 1763-23-1 reaches beyond the label. It governs the environmental section of the safety data sheet, the disposal route stated in section 13, and in several Member States the reporting threshold for storage. Consignments carrying an aquatic hazard also attract marine pollutant marking when moved by sea.

Accidental release and containment

A spill involving substance with CAS number 1763-23-1 must be managed according to Section 6, which should clearly specify the required containment materials and personal protective equipment necessary for personnel approaching the spill site. An operational sheet outlining the cleanup process without detailing the appropriate attire for workers is considered incomplete.

How is perfluorooctane sulfonic acid classified for road, sea and air transport?

The transport classification for perfluorooctane sulfonic acid falls under section 14 and varies depending on the mode of transport: ADR for road, IMDG for sea, and IATA for air. A document that prints all three classifications without specifying which one applies places the responsibility on the shipper to select the correct one, and it is the shipper who faces penalties for making an incorrect choice.

Stability, reactivity and incompatibilities

Incompatibilities for perfluorooctane sulfonic acid should be detailed under section 10 and must not conflict with the storage instructions provided in section 7. If a document lists a material as incompatible in one section while permitting its use in another, it is no longer considered valid.

Identifiers that must agree

The CAS 1763-23-1 number and index number 607-624-00-8 are not interchangeable or decorative elements; they serve distinct purposes. The index number connects to the harmonised classification system, whereas the CAS number links to chemical literature. A document containing one without the other requires readers to independently reconstruct this relationship, which may lead to errors during reconstruction.

What is the EC number for perfluorooctane sulfonic acid?

Alongside CAS 1763-23-1, this substance carries EC number 217-179-8 [1];220-527-1 [2];274-460-8 [3];249-415-0 [4];249-644-6 [5] and Annex VI index 607-624-00-8. 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.

Which GHS pictograms apply to perfluorooctane sulfonic acid?

The label for perfluorooctane sulfonic acid carries 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 1763-23-1, 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 is the CLP classification of perfluorooctane sulfonic acid?

The harmonised classification for CAS 1763-23-1 carries 7 hazard statements: H351, H360D, H362, H332, H302, H372, H411. In plain terms this means suspected of causing cancer; may damage the unborn child; may cause harm to breast-fed children; harmful if inhaled. 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.

Can I import perfluorooctane sulfonic acid into the EU?

Placing perfluorooctane sulfonic acid (CAS 1763-23-1) on the European Union market requires a safety data sheet compiled to Annex II of REACH before the first consignment moves. For carboxylic acid esters, customs and carrier checks concentrate on solvent and intermediate shipments, where the classification stated in section 2 must agree with the harmonised entry in CLP Annex VI under index number 607-624-00-8.

Purity, certificates and what the sheet does not say

Purity grade is a certificate question, not a safety data sheet question. The sheet for perfluorooctane sulfonic acid describes the substance; a certificate of analysis describes one batch of it, with the measured result against the specification and the analytical method named per parameter. Laboratories asking for ‘the COA’ usually need both documents.

Is perfluorooctane sulfonic acid classified as a CMR substance?

CAS 1763-23-1 is classified as a CMR substance (H360D). That status changes the obligations attached to every shipment: workplace exposure documentation, restrictions on supply to the general public, and substitution pressure from downstream users who must justify continued use. A safety data sheet for a CMR substance is read more closely than any other, because the classification itself invites scrutiny.

In which language must the SDS for perfluorooctane sulfonic acid be supplied?

Language compliance is mandatory rather than optional. When perfluorooctane sulfonic acid is delivered to a customer, the receiving Member State may mandate the use of its official language, and several do so without exception. An English original that meets an auditor’s requirements in one country can be rejected at the subsequent border, with no alteration to the content but due solely to the choice of language.

What must the label for perfluorooctane sulfonic acid contain?

The supply label for perfluorooctane sulfonic acid 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 H351, H360D, H362… 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 happens if a consignment of perfluorooctane sulfonic acid is refused?

Refusals related to perfluorooctane sulfonic acid typically arise from three main causes: outdated classification due to amendments, inconsistencies between transport data and shipping documents, and language barriers where the receiving authority does not accept the provided documentation. These issues are not apparent to a reader who perceives the document as professionally presented.

Protective equipment and exposure controls

Laboratories building a risk assessment for perfluorooctane sulfonic acid start from section 8. Where an occupational exposure limit exists it must be stated with its source and averaging period; where none exists, the sheet says so rather than leaving the field blank.

Questions about documentation for perfluorooctane sulfonic acid

What is the CAS number of perfluorooctane sulfonic acid?

CAS 1763-23-1. In CLP Annex VI the same substance carries index number 607-624-00-8, and both identifiers should appear in the documentation.

Is perfluorooctane sulfonic acid a CMR substance?

Yes. The harmonised classification places it among substances classified as carcinogenic, mutagenic or toxic for reproduction, which changes workplace documentation and supply restrictions.

What hazard statements apply to CAS 1763-23-1?

The harmonised entry lists H351, H360D, H362, H332. 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 perfluorooctane sulfonic acid is placed on the market, unless that State has stated otherwise.

MolGod.org issues documentation and does not sell, supply or ship chemical substances. CAS 1763-23-1 identifies the subject of this document.

Which version do you need?

SDS Working Draft

€49.99

  • Delivered automatically after payment, by e-mail
  • Full 16-section REACH Annex II structure
  • Classification against ECHA CLP Annex VI
  • Public-source data with references
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  • For internal drafting and supplier review. Unsigned; supplier-specific fields may need completing.

Best for

  • Seeing what the document will contain before you commit
  • Comparing what a supplier sent you against the register
  • Finding the gaps in a sheet you already hold
  • Preparing an internal file before an export decision
  • Substances you handle but do not yet sell
Recommended when the document leaves your company

Expert-Reviewed SDS

€249.99

  • Everything in the Working Draft
  • Reviewed by a competent person under Annex II, section by section
  • Adapted to your company, product grade and identified use
  • Destination market and language checked
  • Transport section reviewed for the mode you request
  • Five rounds of corrections applied to your instructions
  • Within 72 hours of receiving complete input.

Best for

  • Any document that leaves your company
  • A customer or distributor who asked for the sheet
  • Paperwork travelling with an export shipment
  • A sheet an inspector or authority may read
  • Replacing a sheet a customer has already rejected
If you are unsure, read down the left column and stop at the first line that describes your situation.
What the document is for Working Draft
€49.99
Expert-Reviewed
€249.99
Internal drafting and review YesYes
Checking a sheet a supplier sent you YesYes
Sent to your customer Not written for thisYes
Travels with an export shipment Not written for thisYes
Read by an inspector or authority Not written for thisYes
Adapted to your company, grade and identified use NoYes
Signed and dated by the reviewer NoYes
When you get it Immediately after paymentWithin 72 hours of complete input

Nothing stops you sending a draft to anyone. "Not written for this" means exactly that: it carries no signature and no fields adapted to your company, so it will not answer the questions the recipient is about to ask.

What the signature means

Who prepares the document
The document is generated by the MolGod engine from ECHA CLP Annex VI and the cited public sources, then read section by section by a qualified scientific reviewer with a degree in chemistry or a related scientific field.
What the review covers
The sheet is read section by section against the REACH Annex II structure. GHS classification and transport entries are checked against the sources cited in the document, and the sheet is adapted to the company, product grade and identified use you provide.
What is NOT verified
We do not test your material and we cannot confirm what is physically in your container: composition, concentration, impurities or manufacturing route. Those come from you and are reproduced as supplied.
What the signature is — and is not
The signature records that a qualified scientific reviewer read the document. It is not a government approval, not an ECHA approval, and not a legal certification — no such certification exists for safety data sheets in the EU. A signature does not by itself make a document legally valid or make your business compliant.
What you receive
A PDF in the 16-section REACH Annex II structure, signed and dated, with version information and a list of anything we could not establish. Five rounds of corrections are included.
Delivery
Within 72 hours of receiving complete input from you. The clock pauses whenever we are waiting on an answer.
Refunds
Full refund before review begins. If the evidence is insufficient, you choose a refund, store credit or a gap report. See the refund policy.

No fabricated-data guarantee. If the available evidence is insufficient to support a defensible document for this CAS number and your product specification, we will not invent the missing values. You may choose a refund, store credit or a documented gap report.

Not sure which one fits? Ask for a free screening of a sheet you already hold.

📋 Status prawny (REACH / TSCA / UK)
JurysdykcjaListaStatusSunset
EUREACH Annex XIVlisted2015-08-17
📄 Certificates of Analysis (CoA) CAS 1763-23-1 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
Data from PubChemSource: PubChem (NIH) · ChEMBL
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📚 REFERENCES (Aggregate bibliography, Chicago Author-Date) 78 items

All scientific sources cited in the accordions above for CAS 1763-23-1. Format: Chicago Manual of Style 17th ed., Author-Date system.

🗄️ Scientific databases

  1. NIST. n.d. NIST Chemistry WebBook: CAS 1763-23-1. Gaithersburg, MD: National Institute of Standards and Technology. https://webbook.nist.gov/cgi/cbook.cgi?ID=1763-23-1.
  2. AIST. n.d. Spectral Database for Organic Compounds (SDBS): CAS 1763-23-1. 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 1763-23-1. Bethesda, MD: National Center for Biotechnology Information (NCBI), National Library of Medicine. https://pubchem.ncbi.nlm.nih.gov/#query=1763-23-1.

📐 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://doi.org/10.1002/0471734683.
  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.
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Perfluorooctanesulfonic acid (CAS 1763-23-1), C8HF17O3S - 3D ball-and-stick molecular model, engraved element symbols (C H F O S), MolGod STL previewDownload image

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Model
Perfluorooctanesulfonic acid · 1763-23-1
InChIKey
YFSUTJLHUFNCNZ-UHFFFAOYSA-N
License
CC BY-SA 4.0 International
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MolGod Scientific — Perfluorooctanesulfonic acid (CAS 1763-23-1)
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Perfluorooctanesulfonic acid (CAS 1763-23-1) →
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Perfluorooctanesulfonic acid →
Source data
PubChem CID 74483 ↗
Model information
STL generated by MolGod · MolGod STL Exporter build 97d4498f28a7 · generated 2026-10-04
SHA-256 (STL)
674ec4e634060849079838f0f0a7ed14327d233bb3b4221536a6ebca39330aa6
MD5 (STL)
f1e919cb7e51ec09623dad4f1d67f4f0
MolGod Identification Number
MG_886-906-455-45
Transformation
MolGod Scientific ball-and-stick mesh
Changes
Converted into a triangulated molecular mesh; atomic coordinates and connectivity unchanged.
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