2-(2-((4-Methoxyphenyl)amino)vinyl)-1,3,3-trimethyl-3H-indolium sulphate (2:1) 3H-Indolium, 2-(2-((4-methoxyphenyl)amino)ethenyl)-1,3,3-trimethyl-, sulfate (2:1) 41062-73-1 EINECS 255-198-3