(1,2,5)Thiadiazolo(3,4-d)pyrimidin-7(6H)-one, 5-methylthio- 2-Methylthio-6-hydroxy-8-thiapurine 5-Methylthio-(1,2,5)thiadiazolo(3,4-d)pyrimidin-7(6H)-one 62700-64-5 BRN 0521390