1,3,3-Trimethyl-2-((methylphenylhydrazono)methyl)-3H-indolium methyl sulphate 3H-Indolium, 1,3,3-trimethyl-2-((methylphenylhydrazono)methyl)-, methyl sulfate 58799-08-9 83949-75-1 Basic yellow 65, methyl sulfate salt EINECS 281-435-5