20682-19-3 NAPHTHO(1,2-d)THIAZOLIUM, 2-(3-CHLORO-5-(1-ETHYLNAPHTHO(1,2-d)THIAZOLIN-2-YLIDEN NK 378 Naphtho(1,2-d)thiazolium, 2-(3-chloro-5-(1-ethylnaphtho(1,2-d)thiazolin-2-ylidene-1,3-pentadienyl)-1-ethyl)-, iodide