CAS Registry Number

CAS 1788-10-9 — 4-Acetylbenzenesulfonyl chloride

4-Acetylbenzenesulfonyl chloride is an aromatic sulfonyl chloride used primarily as an intermediate in organic synthesis, particularly for preparing sulfonamides, dyes, and pharmaceuticals. It is a white to off-white crystalline solid with a pungent odor. CAS 1788-10-9, molecular formula C8H7ClO3S, molecular weight 218.6574 g/mol, and stable at ambient temperatures with no signal word classification. Molekula supplies 4-Acetylbenzenesulfonyl chloride from research to bulk quantities with full documentation and ISO 9001:2015 traceability.