T

Trifluoromethanesulfonic acid

IUPAC: trifluoromethanesulfonic acid

CHF3O3S Laboratory Reagents CAS 1493-13-6
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Quick Reference
Formula / NotationCHF3O3S
CAS Number1493-13-6
Molecular Weight150.08
AppearanceColorless hygroscopic liquid; [Merck Index]
Also Known As1493-13-6; Triflic acid; Perfluoromethanesulfonic acid; Trifluoromethanesulphonic acid; tfmsa; Trifluoromethane sulfonic acid; TfOH; HOTf; DTXSID2044397; JE2SY203E8
CategoryLaboratory Reagents

What is Trifluoromethanesulfonic acid?

Triflic acid is a one-carbon compound that is methanesulfonic acid in which the hydrogens attached to the methyl carbon have been replaced by fluorines. It is a perfluoroalkanesulfonic acid and a one-carbon compound. It is a conjugate acid of a triflate.

Formula & Notation

CHF3O3S

IUPAC Name: trifluoromethanesulfonic acid

Other Names / Synonyms: 1493-13-6; Triflic acid; Perfluoromethanesulfonic acid; Trifluoromethanesulphonic acid; tfmsa; Trifluoromethane sulfonic acid; TfOH; HOTf; DTXSID2044397; JE2SY203E8

Properties & Characteristics

Appearance: Colorless hygroscopic liquid; [Merck Index]. Molecular formula: CHF3O3S. Molecular weight: 150.08 g/mol. LogP: 0.3.

Physical Data

PropertyValue
Molecular Weight150.08
AppearanceColorless hygroscopic liquid; [Merck Index]

Uses & Applications

Used as a synthetic reagent for transformations including oxidation, reduction, coupling, or functional group manipulation.

Safety Information

Hazardous reagent. May be toxic, corrosive, flammable, or reactive. Use in fume hood with full PPE. Consult SDS before use.

Always consult the SDS/MSDS before handling any chemical. This information is for educational purposes only.

Key Facts

Term Trifluoromethanesulfonic acid
Formula CHF3O3S
CAS Number 1493-13-6
Molecular Weight 150.08
Synonyms 1493-13-6; Triflic acid; Perfluoromethanesulfonic acid; Trifluoromethanesulphonic acid; tfmsa; Trifluoromethane sulfonic acid; TfOH; HOTf; DTXSID2044397; JE2SY203E8

Frequently Asked Questions

Triflic acid is a one-carbon compound that is methanesulfonic acid in which the hydrogens attached to the methyl carbon have been replaced by fluorines. It is a perfluoroalkanesulfonic acid and a one-carbon compound. It is a conjugate acid of a triflate.

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Editorial standards: Chemical data is sourced from peer-reviewed literature, CAS Registry, NIST WebBook, and PubChem. Safety information reflects guidance from OSHA, ECHA, and IAEA. For educational purposes only — always consult official SDS documentation and qualified professionals before handling chemicals.