CAS Registry Number

CAS 2991-42-6 — 4-(Trifluoromethyl)benzenesulfonyl chloride

4-(Trifluoromethyl)benzenesulfonyl chloride is a highly reactive sulfonyl chloride reagent widely used in organic synthesis for introducing sulfonyl groups into molecules, particularly in the preparation of pharmaceuticals, agrochemicals, and specialty polymers. It serves as a key intermediate in sulfonamide and sulfone synthesis due to its strong electrophilic properties. This chemical has a CAS number of 2991-42-6, with the molecular formula CF3C6H4SO2Cl and a molecular weight of 244.62 g/mol. It is stored at ambient conditions but requires careful handling due to its hazardous nature, classified under the signal word "Danger." Molekula supplies 4-(Trifluoromethyl)benzenesulfonyl chloride from research to bulk quantities with full documentation and ISO 9001:2015 traceability.