1,1'-(1,4-Piperazinediylbis(methylene))bis(2-(2-chlorophenyl)-1H-benzimidazole) 1H-Benzimidazole, 1,1'-(1,4-piperazinediylbis(methylene))bis(2-(2-chlorophenyl)- 73265-46-0 BRN 0736525