2-(p-Bromophenyl)-9-dimethylaminopropyl-9H-imidazo(1,2-a)benzimidazole dihydrochloride 38652-53-8 9H-Imidazo(1,2-a)benzimidazole, 9-((3-dimethylamino)propyl)-2-(p-bromophenyl)-, dihydrochloride