2,4,6-Triamino-7H-pyrimido(4,5-b)(1,4)thiazine 65413-39-0 7H-Pyrimido(4,5-b)(1,4)thiazine, 2,4,6-triamino- 7H-Pyrimido(4,5-b)(1,4)thiazine-2,4,6-triamine BRN 0525277