英文别名(6R,12AR)-rel-2-methyl-6-(2-oxobenzo[d][1,3]dioxol-5-yl)-2,3,12,12a-tetrahydropyrazino[1',2':1,6]pyrido[3,4-b]indole-1,4(6H,7H)-dione; Tadalafil dioxolone; 2'-Oxo Tadalafil; (2R,8R)-6-methyl-2-(2-oxo-1,3-benzodioxol-5-yl)-3,6,17-triazatetracyclo[8.7.0.03,8.011,16]heptadeca-1(10),11,13,15-tetraene-4,7-dione; Pyrazino(1',2':1,6)pyrido(3,4-b)indole-1,4-dione, 2,3,6,7,12,12a-hexahydro-2-methyl-6-(2-oxo-1,3-benzodioxol-5-yl)-, (6R,12aR)-; (6R,12aR)-2-methyl-6-(2-oxobenzo[d][1,3]dioxol-5-yl)-2,3,12,12a-tetrahydropyrazino[1',2':1,6]pyrido[3,4-b]indole-1,4(6H,7H)-dione; Pyrazino[1',2':1,6]pyrido[3,4-b]indole-1,4-dione, 2,3,6,7,12,12a-hexahydro-2-methyl-6-(2-oxo-1,3-benzodioxol-5-yl)-, (6R,12aR)-rel-; Tadalafil Dioxolone Impurity; Tadalafil Impurity 42; Tadalafil Impurity 143 
