1-Methyl-2-(2-(2-methylindol-3-yl)-3-(1-methylnaphtho(1,2-d)thiazolin-2-ylidene)propenyl)naphtho(1,2-d)thiazolium p-toluenesulphonate 18244-79-6 EINECS 242-119-2 Naphtho(1,2-d)thiazolium, 1-methyl-2-(2-(2-methylindol-3-yl)-3-(1-methylnaphtho(1,2-d)thiazolin-2-ylidene)propenyl)-, p-toluenesulfonate