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Ammonium perfluorooctanesulfonate

CAS 29081-56-9

1-Octanesulfonic acid, 1,1,2,2,3,3,4,4,5,5,6,6,7,7,8,8,8-heptadecafluoro-, ammonium salt (1:1)

EPA and Census publish no US supply data for this chemical.

Molecular structure of 29081-56-9
1 NH₄⁺
US productionNot reported
Top sourceNo public record

This chemical is listed as active in US commerce, but no company reported it to EPA’s survey for 2019 or 2023. Sites may have made or imported less than the threshold amount, or none.

Why supply is unknown

Where It Comes From

Customs basis: HS 290432 · exact

EPA and Census publish no US supply data for this chemical.

Why It Matters

No EPA sector or FDA product records name a use for this chemical.

Chemical Identity

CAS29081-56-9
PubChem CIDNot recorded
DTXSIDDTXSID9067435
FormulaC8H4F17NO3S
Mol. Weight517.16 g/mol
SMILES[NH4+].[O-]S(=O)(=O)C(F)(F)C(F)(F)C(F)(F)C(F)(F)C(F)(F)C(F)(F)C(F)(F)C(F)(F)F

Data Sources

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Brief citations

Ammonium perfluorooctanesulfonate (CAS 29081-56-9) https://chemicalindependence.com/chemical/29081-56-9/ EPA TSCA Inventory: CAS 29081-56-9. Retrieved 2026-10-04. https://www.epa.gov/tsca-inventory