1H-Imidazolium, 2-((4-(dimethylamino)-2,5-dimethoxyphenyl)azo)-1,3-dimethyl-, methyl sulfate 2-((4-(Dimethylamino)-2,5-dimethoxyphenyl)azo)-1,3-dimethyl-1H-imidazolium methyl sulphate 84787-99-5 EINECS 284-137-3 Imidazolium, 1,3-dimethyl-2-(((2,5-dimethoxy-4-dimethylamino)phenyl)azo)-, methyl sulfate