CAS Registry Number

CAS 66715-65-9 — Pyridine-2-sulfonyl chloride

Pyridine-2-sulfonyl chloride is an aromatic sulfonyl chloride derivative used primarily as a reagent in organic synthesis, particularly for the preparation of sulfonamides, sulfoximines, and other sulfur-containing compounds. It facilitates selective functionalization in pharmaceutical and agrochemical intermediate production. This reagent has a CAS number of 66715-65-9, a molecular formula of C5H4ClNO2S, and a molecular weight of 177.60876. It is stable at ambient storage conditions and carries no signal word for hazard classification. Molekula supplies Pyridine-2-sulfonyl chloride from research to bulk quantities with full documentation and ISO 9001:2015 traceability.