英文别名
6H-dioxo-1,4 ethyl-5 tetrahydro-1,2,3,4 pyridazino<4,5-b>carbazole;1,4-Dioxo-5-ethyl-1,2,3,4-tetrahydropyridazino<4,5-b>carbazol;5-ethyl-2,3-dihydro-6H-pyridazino[4,5-b]carbazole-1,4-dione;1H-Pyridazino(4,5-b)carbazole-1,4(6H)-dione, 2,3-dihydro-5-ethyl-;5-ethyl-3,6-dihydro-2H-pyridazino[4,5-b]carbazole-1,4-dione