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Perfluorobutanoic acid

CAS 375-22-4

Perfluorobutanoic acid chemical structure

Concern score

Not assessed — no hazard data yet.

Perfluorobutanoic acid in plain language

What it is

Also known as Heptafluorobutyric acid · Perfluorobutyric acid · 2,2,3,3,4,4,4-HEPTAFLUOROBUTANOIC acid · Fluorad fc 23 · Hfba · Heptafluorobutanoic acid

Show all 22 names

Butanoic acid, 2,2,3,3,4,4,4-HEPTAFLUORO- · Butanoic acid, 2,​2,​3,​3,​4,​4,​4-​heptafluoro- · Butanoic acid, heptafluoro- · Butyric acid, heptafluoro- · FC-23 · H-0024 · Heptafluoro-1-butanoic acid · Kyselina heptafluormaselna · Pfba · PFBA perfluorobutanoic acid · Perfluorobutanoic acid (PFBA) · Perfluoropropanecarboxylic acid · heptafluorobutanoatato · potassium salt perfluorobutyric acid · perfluorobutyric acid, silver (1+) salt · sodium salt perfluorobutyric acid

What it does

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

Recorded functional uses: Used as a stain or water repellent.

Is it a concern?
We haven't assessed a concern score for this ingredient yet.

Regulation

No restrictions found. Perfluorobutanoic acid appears in these published regulatory listings.

Recorded in these product areas

  • Found in consumer products
  • Industrial
  • USEPAcommercial use observedEPA CPDat observed this chemical in 0 composition records across product categories including unclassified products. EPA CPDat classifies this chemical for functional uses including Used as a stain or water repellent..
    • EPA CPDat observed this chemical in 0 composition records across product categories including unclassified products. EPA CPDat classifies this chemical for functional uses including Used as a stain or water repellent..Source →
  • USFDAlisted in openFDA substanceopenFDA substance registry classifies this ingredient as chemical.
    • openFDA substance registry classifies this ingredient as chemical.Source →

Evidence & sources

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

5 data sources

Where this comes from

  • 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 →

Suitability

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

Fragrance avoidance

Nothing to weigh for this context yet.

No signal in this context

We have no published hazard signal for this ingredient, so we cannot say how it behaves in this context — that is missing evidence, not a clean result.

Where it has been recorded

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

Named organisations

4

Typical roles

Used as a stain or water repellent.
See products using Perfluorobutanoic acid →