2-(((4-Methoxyphenyl)methylhydrazono)methyl)-1,3,3-trimethyl-3H-indolium hydrogen sulphate 3H-Indolium, 2-(((4-methoxyphenyl)methylhydrazono)methyl)-1,3,3-trimethyl-, sulfate (1:1) 83949-62-6 EINECS 281-422-4