4-Chloro-3-(trifluoromethyl)benzenesulfonyl chloride (CAS NO.32333-53-2), its Synonyms are 4-Chloro-3-trifluoromethyl-benzenesulfonyl chloride ; Benzenesulfonyl chloride, 4-chloro-3-(trifluoromethyl)- ; 4-Chloro-3-(trifluoromethyl)benzenesulfonylchloride ; 4-Chloro-3-(trifluoromethyl)benzenesulphonyl chloride ; 4-Chloro-5-(trifluoromethyl)benzenesulfonyl chloride .