VDF47: Vardenafil Dessulfonyl Impurity

2-(2-Ethoxyphenyl)-5-methyl-7-propyl-3H-imidazo[5,1-f][1,2,4]triazin-4-one ;

CAS # 224789-21-3 ;

C17H20N4O2 ;

Mol. Wt.: 312.37 ;