1H-Benzimidazolium, 6-chloro-4-((4-((2-cyanoethyl)ethylamino)phenyl)azo)-1,3-dimethyl-, methyl sulfate 53792-62-4 6-Chloro-4-((4-((2-cyanoethyl)ethylamino)phenyl)azo)-1,3-dimethyl-1H-benzimidazolium methyl sulphate 6-Chloro-4-((4-((2-cyanoethyl)ethylamino)phenyl)azo)-1,3-dimethyl-1H-benzimidazolium, methyl sulfate EINECS 258-782-6