1H-Benzimidazolium, 6-chloro-4-((4-(ethyl(2-hydroxyethyl)amino)-2-methylphenyl)azo)-1,3-dimethyl-, chloride 36116-31-1 5-Chloro-7-((4-(ethyl(2-hydroxyethyl)amino)-2-benzyl)azo)-1,3-dimethyl-1H-benzimidazolium chloride EINECS 252-872-9