2,3-Dihydro-5,7-diaminothiazolo(3,2-a)pyrimidin-4-ium bromide 5,7-Diaminothiazolidino(3,2-a)pyrimidine bromide 92629-50-0 Thiazolo(3,2-a)pyrimidin-4-ium, 2,3-dihydro-5,7-diamino-, bromide