英文别名Tadalafil Impurity 23; methyl (R)-2-((benzo[d][1,3]dioxol-5-ylmethylene)amino)-3-(1H-indol-3-yl)propanoate; Tadalafil Impurity 35; Tadalafil Impurity 41; D-Tryptophan, N-(1,3-benzodioxol-5-ylmethylene)-, methyl ester; (R,E)-methyl 2-((benzo[d][1,3]dioxol-5-ylmethylene)amino)-3-(1H-indol-3-yl)propanoate 
