Vardenafil 99%
Assay : 99% Vardenafil
CAS: 224785-90-4
Vardenafil Molecular Formula: C23H32N6O4S
Vardenafil is closely related in fuction to sidenafil citrate and tadalafil,structly,the difference between the vardenafil molecule and sidenafil citrate is a nitrogen atom's position and the
change of sildenafil