Description

Perfluorobutanesulfonic Acid (PFBSA) is a high-purity fluorosurfactant and chemical intermediate with the molecular formula C₄HF₉O₃S (CAS No. 375-73-5). This compound, also known by its IUPAC name 1,1,2,2,3,3,4,4,4-nonafluorobutane-1-sulfonic acid, is a short-chain perfluoroalkyl substance (PFAS) characterized by its strong acidity and exceptional thermal and chemical stability. It is supplied as a clear, colorless liquid with high solubility in polar organic solvents and limited solubility in water. PFBSA is widely utilized in advanced material synthesis, catalysis, and surface modification due to its unique hydrophobic and oleophobic properties. Our product is rigorously tested for purity and consistency, making it ideal for research in electrochemistry, polymer science, and specialty coatings. Available in various packaging options with detailed technical documentation.

Properties

• CAS Number: 375-73-5
• Complexity: 387
• IUPAC Name: 1,1,2,2,3,3,4,4,4-nonafluorobutane-1-sulfonic acid
• InChI: InChI=1S/C4HF9O3S/c5-1(6,3(9,10)11)2(7,8)4(12,13)17(14,15)16/h(H,14,15,16)
• InChI Key: JGTNAGYHADQMCM-UHFFFAOYSA-N
• Exact Mass: 299.95026852
• Molecular Formula: C4HF9O3S
• Molecular Weight: 300.10
• SMILES: C(C(C(F)(F)S(=O)(=O)O)(F)F)(C(F)(F)F)(F)F
• Topological: 62.8
• Monoisotopic Mass: 299.95026852
• Color/Form: Colorless liquid
• Boiling Point: 210-212 °C
• Solubility: In water, 510 mg/L, temperature not specified
• Density: 1.811 g/mL at 25 °C
• Stability/Shelf Life: Stable under recommended storage conditions.
• Refractive Index: Index of refraction: 1.323 at 20 °C/D
• Synonyms: perfluorobutanesulfonic acid, 375-73-5, Nonafluorobutanesulfonic acid, Nonafluoro-1-butanesulfonic acid, Nonafluorobutane-1-sulfonic acid, 1,1,2,2,3,3,4,4,4-nonafluorobutane-1-sulfonic acid, 1-Perfluorobutanesulfonic acid, 1,1,2,2,3,3,4,4,4-Nonafluoro-1-butanesulfonic acid, perfluorobutane sulfonic acid, EINECS 206-793-1, DTXSID5030030, EFTOP FBSA, FC-98, 1-Butanesulfonic acid, 1,1,2,2,3,3,4,4,4-nonafluoro-, UNII-1FV02N6NVO, perfluorobutane-1-sulfonic acid, HSDB 8294, CHEBI:132446, 1-Butanesulfonic acid, nonafluoro-, NONAFLUORO 1-BUTANESULFONIC ACID, potassium PFBS, Nonafluorobutane-1-sulfonatato, PFBS cpd, potassium nonafluorobutane-1-sulfonate, Pentyl perflurotobutanoate, AMMONIUM NONAFLUOROBUTANE-1-SULFONATE, 1-Perflurobutanesulfonic acid, DTXCID3010030, PFBS perfluorobutane sulfonic acid, 1-butanesulfonic acid, 1,1,2,2,3,3,4,4,4-nonafluror, potassium salt, 1-Butanesulfonic acid, nonafluoro-(6CI,7CI,8CI), 206-793-1, PFBS, 59933-66-3, Perfluoro-1-butanesulfonic Acid, 1FV02N6NVO, Perfluorobutanesulfonic acid 100 microg/mL in Methanol/Water, PFBuS, Butanesulfonic acid, nonafluoro-, perfluorobutanesulphonic acid, Nonafluoro-1-butanesulfonic Acid (50?g/mL in Acetonitrile), nonafluorobutanesulphonic acid, 1,1,2,2,3,3,4,4,4-Nonafluorobutane-1-sulphonic acid, MFCD01320794, perfluorobutyl sulfonic acid, SCHEMBL23932, nonafluorobutane sulfonic acid, SCHEMBL455847, CHEMBL1198521, MSK9511, DYYXILLZBJCTSF-UHFFFAOYSA-N, CS-B0899, AKOS015852768, FN60521, Nonafluorobutane-1-sulfonic acid, 97%, NCI60_006096, DB-231568, N0709, NS00010276, D77221, Q410426

Application

Perfluorobutanesulfonic acid is used as a catalyst in organic synthesis, particularly in alkylation and esterification reactions, due to its strong acidity and stability. It serves as a key intermediate in the production of fluorinated surfactants and ion-exchange membranes for fuel cells. Researchers also employ it in surface treatment applications to impart water and oil repellency to materials.

Safety and Hazards

GHS Hazard Statements

• H302: Harmful if swallowed [Warning Acute toxicity, oral]
• H314: Causes severe skin burns and eye damage [Danger Skin corrosion/irritation]
• H318: Causes serious eye damage [Danger Serious eye damage/eye irritation]

Precautionary Statements

• P260, P264, P264+P265, P270, P280, P301+P317, P301+P330+P331, P302+P361+P354, P304+P340, P305+P354+P338, P316, P317, P321, P330, P363, P405, and P501

Hazard Classes and Categories

• Acute Tox. 4 (97.8%)
• Skin Corr. 1B (100%)

If you are interested or have any questions, please contact us at support@atomfair.com

Disclaimer: Sold exclusively for laboratory research. Prohibited for commercial use, diagnostics, or human/animal applications. Buyers assume all compliance liability.