英文别名PyriMido[4,5-c]pyridazine-5,7(1H,6H)-dione; Pyrimido[4,5-c]pyridazine-5,7-diol; Pyrimido[4,5-c]pyridazine-5,7(6H,8H)-dione; pyrimidinebenzo[4,5-c]azine-5,7(1H,6H)-dione; 8H-pyrimido[4,5-c]pyridazine-5,7-dione; 6,8-Dihydro-pyrimido<4,5-c>pyridazin-5,7-dion 
