Synonyms: 2-[[(4-methoxyphenyl)methylhydrazono]methyl]-1,3,3-trimethyl-3H-indolium acetate;3H-Indolium, 2-(4-methoxyphenyl)methylhydrazonomethyl-1,3,3-trimethyl-, acetate;2-[[(4-methoxyphenyl)methylhydrazono]methyl]-1,3,3-trimethyl-3h-indoliu acetate