2,3-Diphenyl-3-methoxythiazolo(3,2-a)pyrimidin-4-ium perchlorate 2,7-Diphenyl-3-methoxythiazolo(3,2-a)pyrimidin-4-ium perchlorate 91915-80-9 Thiazolo(3,2-a)pyrimidin-4-ium, 2,3-diphenyl-3-methoxy-, perchlorate