CAS 56157-92-7 appears in our catalog under these names: 4-Chloro-2-methylbenzenesulfonyl chloride, 95%, 4-Chloro-2-methylbenzene-1-sulfonyl chloride, 95%, 4-Chloro-2-methylbenzenesulfonyl chloride. Offered by: Combi-blocks, AmBeed, Biosynth. Available pack sizes: 250mg, 1g, 10g, 5g, 25g, 2g.