High Quality Sex Enhancers Vardenafil (CAS: 224785-90-4)

Vardenafil CAS: 224785-90-4 Character: White or almost white crystalline powder, odorless, bitter astringent taste, insoluble in water and ethanol. Assay: 99% min. Molecular formula: C22H30N6O4S melting point: 214-216oC Molecular weight: 474.58 Packing: 1kg net/foil bag, 5kg/drum. Description: Vardenafil's indications and contra-indications are the same as with other PDE5 inhibitors; It is closely related in function to citrate and tadalafil. The difference between the vardenafil molecule and citrate is a nitrogen atom's position and the change of sildenafil's piperazine ring methyl group to an ethyl group. Tadalafil is structurally different from both vardenafil. Vardenafil's relatively short effective time is comparable to but somewhat longer than sildenafil's. Beyond its indications for erectile dysfunction, vardenafil may be effective in the treatment of premature ejaculation, where it may significantly increase the time from penetration to ejaculation It is a highly selective PDE-5 inhibitor, playing a role in the treatment of the penile erection mainly through specific inhibition of PDE-5 activity. Compared with similar products of the drug, it has the characteristics of fast onset of action, efficacy reliable, high quality and erection of good security. Email : [email protected]