6-Amino-2-(4'-aminofenyl)benzimidazol hydrochlorid [Czech] 6-Amino-2-(4'-aminophenyl)benzimidazole dihydrochloride 6-Amino-2-(p-aminofenyl)benzimidazol dichlorid [Czech] 63991-49-1 BENZIMIDAZOLE, 6-AMINO-2-(4'-AMINOPHENYL)-, DIHYDROCHLORIDE