1,2,4-Triazolo(4,3-a)pyrimidin-5-ol, 7-methyl- 3886-55-3 7-Methyl-1,2,4-triazolo(4,3-a)pyrimidin-5-ol 7-Methyl-1,2,4-triazolo(4,3-a)pyrimidine-5-ol EINECS 223-422-9 NSC 7528