10H-Pyrido(3,2-b)pyrimido(4,5-e)(1,4)thiazine-2,4-diamine, 8-methyl- 2,4-Diamino-8-methyl-1,3,9-triazaphenothiazine 63931-09-9 8-Methyl-10H-pyrido(3,2-b)pyrimido(4,5-e)(1,4)thiazine-2,4-diamine BRN 0544876