Nonafluoro-1-butanesulfonic acid

Also known as: 1,1,2,2,3,3,4,4,4-Nonafluoro-1-butanesulfonic acid, 1,1,2,2,3,3,4,4,4-Nonafluorobutane-1-sulfonic acid, 1,1,2,2,3,3,4,4,4-nonafluorobutane-1-sulphonic acid, 1-Butanesulfonic acid, 1,1,2,2,3,3,4,4,4-nonafluoro-, 1-Perfluorobutanesulfonic acid, Eftop FBSA, Nonafluorobutane-1-sulfonic acid, Nonafluorobutanesulfonic acid, Nonafluorobutanesulphonic acid, Perfluorobutane-1-sulphonic acid, Perfluorobutanesulfonic acid, perfluoro-1-butanesulfonic acid

Nonafluoro-1-butanesulfonic acid (CAS 375-73-5) is a compound in the Organic Acids category listed in the Jingsj chemical database. It has the molecular formula C4HF9O3S and a molecular weight of 300.100 g/mol. Key properties include a boiling point of 112-114 °C14 mm Hg(lit.), a density of 1.8±0.1 g/cm3 and a flash point of >110.0 °C. It is classified under GHS with signal word Danger and hazard statements H302 — Harmful if swallowed and H314 — Causes severe skin burns and eye damage. No supplier offers are currently listed; request a quote. Record last updated Nov 3, 2026.

CAS No.

375-73-5

Jingsj CID

J-8580-3

Molecular Formula

C₄HF₉O₃S

Molecular Weight

300.100 g/mol

Category

Organic Acids

Last updated

11/3/2026