CAS Registry Number

CAS 421-83-0 — Trifluoromethanesulfonyl chloride

Trifluoromethanesulfonyl chloride is a reactive fluorinated sulfonyl chloride used in organic synthesis, particularly for sulfonation and as a reagent in the preparation of sulfonate esters and catalysts. It is a colorless to pale yellow liquid with a pungent odor. CAS: 421-83-0, molecular formula: CF3SO2Cl, molecular weight: 168.52 g/mol. Store at 2 to 8 °C. Signal word: Danger. Molekula supplies Trifluoromethanesulfonyl chloride from research to bulk quantities with full documentation and ISO 9001:2015 traceability.