Synonyms | N-Desethyl Vardenafil Vardenafil N-Desethyl Imp N-Desethyl Vardenafil Impurity Vardenafil N-Desethyl Impurity Vardenafil Impurity 4(Vardenafil N-Desethyl Impurity) 2-(2-ethoxy-5-piperazin-1-ylsulfonylphenyl)-5-methyl-7-propyl-1H-imidazo[5,1-f][1,2,4]triazin-4-one 2-(2-Ethoxy-5-(piperazin-1-ylsulfonyl)phenyl)-5-methyl-7-propylimidazo[5,1-f][1,2,4]triazin-4(1H)-one 2-(2-ethoxy-5-(piperazin-1-ylsulfonyl)phenyl)-5-methyl-7-propylimidazo[5,1-f][1,2,4]triazin-4(3H)-one 1-[[3-(1,4-Dihydro-5-methyl-4-oxo-7-propylimidazo[5,1-f][1,2,4]triazin-2-yl)-4-ethoxyphenyl]sulfonyl]-piperazine |