1,3,3-Trimethyl-2-((methyl(4-methylphenyl)hydrazono)methyl)-3H-indolium methyl sulfate 1,3,3-Trimethyl-2-((methyl(p-tolyl)hydrazono)methyl)-3H-indolium methyl sulphate 3H-Indolium, 1,3,3-trimethyl-2-((methyl(4-methylphenyl)hydrazono)methyl)-, methyl sulfate 73019-09-7 EINECS 277-232-6