2-Chlorobenzimidazole 2-Phenylbenzimidazole-5-sulfonic acid 2-Chloro-5-(chloromethyl)pyridine 2-(Cyanomethyl)benzimidazole tert-Butyldimethylsilyl chloride 5-Nitrobenzimidazole Benzimidazole 5-Chloro-2-chloromethyl-1H-benzoimidazole Chloromethyl methyl ether 1-BENZYL-2-CHLOROMETHYL-1H-BENZOIMIDAZOLE