CAS Registry Number

CAS 773-64-8 — Mesitylenesulfonyl chloride

Mesitylenesulfonyl chloride is an aromatic sulfonyl chloride used primarily as a reagent in organic synthesis, particularly for the preparation of sulfonamides, sulfonyl derivatives, and other sulfur-containing compounds. It serves as a selective sulfonylating agent in peptide chemistry and pharmaceutical intermediate synthesis. This chemical has a CAS number of 773-64-8, with the molecular formula C9H11ClO2S and a molecular weight of 218.7004. It is stable under ambient storage conditions and carries no signal word for hazard classification. Molekula supplies Mesitylenesulfonyl chloride from research to bulk quantities with full documentation and ISO 9001:2015 traceability.