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Ammonium perfluorononanesulfonate

CAS 17202-41-4

1-Nonanesulfonic acid, 1,1,2,2,3,3,4,4,5,5,6,6,7,7,8,8,9,9,9-nonadecafluoro-, ammonium salt (1:1)

Molecular structure of 17202-41-4
1 NH₄⁺
US productionNot reported
Import value, 2024$9M
Top sourceChina 53%

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

Production is reported production, not a complete census of factories. Import value and source-country shares describe a shared customs category, not a separate chemical measurement.

Where It Comes From

Customs basis: HS 290499 · basket

These shares come from HS customs code 290499, which covers 112 tracked chemicals in total. They estimate the category's origin mix, not this chemical specifically.

Source Countries
CN 53%ChinaIN 30%IndiaUA 4%UkraineTW 4%TaiwanIT 4%Italy

Why It Matters

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

Chemical Identity

CAS17202-41-4
PubChem CIDNot recorded
DTXSIDDTXSID9066174
FormulaC9H4F19NO3S
Mol. Weight567.16 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)C(F)(F)F

Data Sources

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Brief citations

Ammonium perfluorononanesulfonate (CAS 17202-41-4) https://chemicalindependence.com/chemical/17202-41-4/ EPA TSCA Inventory: CAS 17202-41-4. Retrieved 2026-10-04. https://www.epa.gov/tsca-inventory US Census international trade: HS 290499 for CAS 17202-41-4. Reporting year: 2024. https://usatrade.census.gov/