4-Bromo-3-fluoropyridine hydrochloride1159811-44-530 % similar 2,3,4-Trichlorobenzenesulfonyl chloride34732-09-730 % similar 2-Naphthalenesulfonyl chloride93-11-830 % similar 2,6-Dichlorobenzenesulfonylchloride6579-54-030 % similar 2-Bromo-4,6-difluorobenzenesulfonyl chloride351003-42-430 % similar