66827-18-7 AMMONIUM, (2-(10H-PYRIDO(3,2-b)(1,4)BENZOTHIAZIN-10-YL)ETHYL)TRIMETHYL-, METHYL Ammonium, (2-(10H-pyrido(3,2-b)(1,4)benzothiazin-10-yl)ethyl)trimethyl-, methyl sulfate D 220a