Vardenafil Synonyms: Vardenafil cloridrato; Valdenafil; Valdenafil HCl, Vardenafil HCL CAS:224785-90-4 MF: C23H33ClN6O4S MW: 525.06 Purezza: 99.91% Standard: USP Character: Polvere cristallina da bianca a quasi bianca, inodore, a little acerbity, solubile in acqua, ethanol Usage: A selective phsphodiesterase type 5 (PDE5) inibitore; Pharmaceutical raw material; Indicated for the treatment of erectile dysfunction(ED).