1H-pyrazolo[3,4-d]pyrimidine, 4-methoxy- 4-methoxy-1H-pyrazolo[3,4-d]pyrimidine 5399-93-9 InChI=1/C6H6N4O/c1-11-6-4-2-9-10-5(4)7-3-8-6/h2-3H,1H3,(H,7,8,9,10