Synonyms: 2-[2-[4-[(2-cyanoethyl)ethylamino]-o-tolyl]vinyl]-1,3,3-trimethyl-3H-indolium dihydrogen phosphate;3H-Indolium, 2-[2-[4-[(2-cyanoethyl) ethylamino]-2-methylphenyl]ethenyl]-1,3,3-trimethyl-, phosphate;3H-Indolium, 2-[2-[4-[(2-cyanoethyl)ethylamino] -2-methylphenyl]ethenyl]-1,3,3-trimethyl -, phosphate (1:1)