2-(2-((2,4-Dimethoxyphenyl)amino)vinyl)-1,3,3-trimethyl-3H-indolium hydrogen sulphate 3H-Indolium, 2-(2-((2,4-dimethoxyphenyl)amino)ethenyl)-1,3,3-trimethyl-, sulfate (1:1) 59737-31-4 EINECS 261-899-5