CAS 22958-99-2 appears in our catalog under these names: 2-(4-(Chlorosulfonyl)phenyl)acetic acid, 95%, 2-(4-(Chlorosulfonyl)phenyl)acetic acid 60%, 4-(Chlorosulphonyl)phenylacetic acid, tech grade, 70%, 4-Chlorosulfonylphenylacetic Acid, [4-(Chlorosulfonyl)phenyl]acetic acid, 95%. Offered by: AmBeed, Combi-blocks, TRC, Biosynth, Fluorochem. Available pack sizes: 25g, 10g, 250mg, 1g, 5g, 500mg, 0,25g, 0,1g.