英文别名Tadalafil EP Impurity E; (6R,12bR)-6-(Benzo[d][1,3]dioxol-5-yl)-6a-hydroxy-2-methyl-2,3,6a,7,12a,12b-hexahydropyrazino[1',2':1,5]pyrrolo[3,4-b]quinoline-1,4,12(6H)-trione; Pyrazino[1',2':1,5]pyrrolo[3,4-b]quinoline-1,4,12(6H)-trione, 6-(1,3-benzodioxol-5-yl)-2,3,6a,7,12a,12b-hexahydro-6a-hydroxy-2-methyl-, (6R,12bR)-; Tadalafil Aminohemiketal Impurity; Sulfentrazone Impurity 4 
