API
IMPURITY
CHEMICAL NAME
STRUCTURE
2
Vardenafil Hydrochloride

Vardenafil Impurity

2(2-ethoxyphenyl)-5-methyl-7-propyl-3,4-dihydroimidazo[5,1-f][1,2,4]triazin-4-one Vardenafil-Hydrochloride-Vardenafil-Impurity
Vardenafil Hydrochloride

Vardenafil Impurity

4-[2-Ethoxy-5-(4-ethylpiperazin-1-yl)sulfinyl-phenyl]-9-methyl-7- propyl-3,5,6,8-tetrazabicyclo[4.3.0]nona-3,7,9-trien-2-one Vardenafil-Impurity