英文别名：
Vardenafil Impurity 7;Vardenafil Impurity 4;Acetic acid, 2-[[2-[[[3-(1,4-dihydro-5-methyl-4-oxo-7-propylimidazo[5,1-f][1,2,4]triazin-2-yl)-4-ethoxyphenyl]sulfonyl]amino]ethyl]amino]-2-oxo-;2-((2-((4-ethoxy-3-(5-methyl-4-oxo-7-propyl-1,4-dihydroimidazo[5,1-f][1,2,4]triazin-2-yl)phenyl)sulfonamido)ethyl)amino)-2-oxoacetic acid;VardefilImpurity4;O-Desethylvardenafil (2-[2-Hydroxy-5-[(4-ethyl-1-piperazinyl)sulfonyl]phenyl]-5-methyl-7-propyl-imidazo[5,1-f][1,2,4]triazin-4(1H)-one)
