2,6-Dichloro-4-(trifluoromethyl)benzenesulfonyl chloride175205-76-232 % similar 1-Benzothiophene-2-sulfonyl chloride90001-64-232 % similar 2,3-Dichlorothiophene-5-sulphonyl chloride126714-85-031 % similar 3-Bromo-5-(trifluoromethyl)benzenesulfonyl chloride351003-46-830 % similar 4,5-Dibromothiophene-2-sulfonyl chloride81606-31-730 % similar