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Perfluorooctanoic acid

CAS 335-67-1 · 100/100 · High conf.

Also registered as 2 other CAS numbers

65618-66-8 · 71244-15-0

Perfluorooctanoic acid chemical structure

Concern score

100/100Critical concern driven by cmr.
High confidence

Perfluorooctanoic acid in plain language

What it is

Also known as 2,2,3,3,4,4,5,5,6,6,7,7,8,8,8-pentadecafluorooctanoic acid · N-perfluorooctanoic acid · Octanoic acid, 2,2,3,3,4,4,5,5,6,6,7,7,8,8,8-PENTADECAFLUORO · Pentadecafluoro octanoic acid · Perflurooctanoic-acid · Pfoa

Show all 25 names

Pentadecafluorooctanoic acid · Hexanoyl fluoride, 3,3,4,4,5,5,6,6,6-nonafluoro-2-oxo- · Octanoic acid, pentadecafluoro- · Pentadecafluor-caprylsaeure · PERFLUORO-1-HEPTANECARBOXYLIC acid · Perfluoroheptanecarboxylic acid · PFOA (acid) · PFOA cpd · PFOA perfluorooctanoic acid · Pentadecafluoro-1-octanoic acid · Pentadecafluoro-n-octanoic acid · Perfluoro-n-octanoic acid · Perfluorocaprylic acid · Perfluoroctanoic acid · Perfluorooctanoic acid (PFOA) · Perfluorooctanoic acid (PFOA) and related substances · acido pentadecafluorooctanoico · perfluorooctanoic acid C8F17COOH · pfoa (c8)

What it does

We don't have a plain-language description for Perfluorooctanoic acid yet.

Recorded functional uses: No specific technical function · Used as a stain or water repellent.

Is it a concern?
Critical concern: classified for carcinogenic, mutagenic or reproductive toxicity (CMR). It is banned in EU cosmetics.

Why it's flagged

  • Cmr

Perfluorooctanoic acid is prohibited in cosmetic products under Annex II of the EU Cosmetics Regulation (EC) 1223/2009.

RestrictedEU EC — banned

The score describes this ingredient's chemical identity — its hazard profile from published classifications and regulatory status — not the safety of any product it appears in.

Regulation

Restrictions first, then routine listings from published regulatory sources.

  • EU Annex II — prohibited
  • EU prohibited in cosmetics

Recorded in these product areas

  • Found in consumer products
  • Cleaning
  • Industrial
  • EUEC

    Annex II of EU Cosmetics Regulation (EC) 1223/2009: substances prohibited in cosmetic products. CMR: Reprotoxic Cat. 1B(),Carcinogenic Cat. 2()

    banned
    View source →
  • EUCosIngActiveCosmetics Regulation annex II / ref 1561.
    • Cosmetics Regulation annex II / ref 1561.Source →
  • USEPAcommercial use observedEPA CPDat observed this chemical in 7 composition records across product categories including Raw materials, Cleaning products and household care, Cleaning and safety. EPA CPDat classifies this chemical for functional uses including Used as a stain or water repellent., No specific technical function.
    • EPA CPDat observed this chemical in 7 composition records across product categories including Raw materials, Cleaning products and household care, Cleaning and safety. EPA CPDat classifies this chemical for functional uses including Used as a stain or water repellent., No specific technical function.Source →
  • USFDAlisted in openFDA substanceopenFDA substance registry classifies this ingredient as chemical.
    • openFDA substance registry classifies this ingredient as chemical.Source →

Expert safety opinions

No expert opinion on file for Perfluorooctanoic acid. These are the independent scientific bodies that assess ingredients like this one; we show an opinion only when a record we hold cites it.

  • SCCS

    EU Scientific Committee on Consumer Safety

    No SCCS opinion on file.

  • CIR

    Cosmetic Ingredient Review (US expert panel)

    No CIR safety assessment on file.

Evidence & sources

No graded research studies for Perfluorooctanoic acid yet. This record is compiled from the published data sources below — registries and regulatory listings, not study findings.

7 data sources

Where this comes from

  • CosIng

    regulatory · updated 2026-09-23

    Open →
  • EU CosIng Cosmetics Regulation Annexes

    regulatory · updated 2020-07-30

    Open →
  • EPA Chemical and Products Database

    exposure · updated Oct-18

    Open →
  • EPA DSSTox Identifiers

    chemistry · updated 2025-12-29

    Open →
  • FDA GSRS UNII

    registry · updated 2026-02-26

    Open →
  • openFDA Substance

    registry · updated 2026-05-24

    Open →
  • PubChem Live Enrichment

    chemistry · updated 2026-05-17

    Open →
Reference links (1)
Openfda substance

pubchem.ncbi.nlm.nih.gov

Suitability

Context-specific fit derived from published classifications and the current ingredient evidence profile.

Fragrance avoidance

No fragrance-linked caution surfaced in the current profile.

Good fit

This ingredient does not currently read as a fragrance-linked driver in the published evidence and hazard profile.

Where it has been recorded

How often EPA CPDat has listed Perfluorooctanoic acid in a product composition. These are source records, not Greenveil catalog products.

Source records

7

Named organisations

6

Raw materialsCleaning products and household careCleaning and safety

Typical roles

No specific technical functionUsed as a stain or water repellent.
See products using Perfluorooctanoic acid →