pyrido[3,4-d]pyriMidine-2,4-diol

2,4-Dihydroxypyrido[3,4-d]pyrimidine

PYRIDO[3,4-D]PYRIMIDINE-2,4(1H,3H)-DIONE

1H,2H,3H,4H-pyrido[2,3-d]pyriMidine-2,4-dione