2-(2-Anilinovinyl)-1-ethylnaphtho(1,2-d)thiazolium 4-methylbenzenesulfonate 41737-77-3 90230-46-9 Naphtho(1,2-d)thiazolium, 1-ethyl-2-(2-(phenylamino)ethenyl)-, saltwith 4-methylbenzenesulfonic acid (1:1)