CAS 874804-21-4 appears in our catalog under these names: 4-Bromo-2,6-difluorobenzenesulfonyl chloride, 4-Bromo-2,6-difluorobenzenesulfonyl chloride, 97%, 4-Bromo-2,6-difluorobenzene-1-sulfonyl chloride 95+%. Offered by: Biosynth, Fluorochem, Combi-blocks, Ambeed. Available pack sizes: 0,5g, 5g, 250mg, 1g, 10g, 100mg.