CAS-nummer: 139755-83-2 Kjemisk formel: C22H19N3O4 Molecular Weight: 389.4 Content: 99.5% Sildenafil citrate, Viagra Solubility: Lite løselig i vann, methanol; very slightly soluble in ethanol, chloroform Appearance: Hvitt krystallinsk pulver Lagring: shading, innesluttet bevaring. Bruk: Viagra (Sildenafil citrate) is a drug used to treat erectile dysfunction (impotence) in males and pulmonary arterial hypertension (PAH).