European Pharmacopoeia (EP) Reference Standard
Synonym(s): 1H-Pyrazolo(3,4-d)pyrimidin-4-ol; 4-Hydroxypyrazolo(3,4-d)pyrimidine; 4-Hydroxypyrazolo[3,4-d]pyrimidine; HPP
Empirical Formula: C5H4N4O
Formula Weight: 136.11
Linear Formula: C5H4N4O
MDL Number: MFCD00599413
Melting Point: >300 °C(lit.)