Număr CAS: 139755-83-2 Formula chimică: C22H19N3O4 Molecular Weight: 389.4 Conţinut: 99.5% Sildenafil citrate, Viagra Solubility: Slightly soluble in water, methanol; very slightly soluble in ethanol, chloroform Appearance: Pulbere cristalină albă Depozitare: umbrire, conservare restrânsă. Utilizare: Viagra (Sildenafil citrate) is a drug used to treat erectile dysfunction (impotence) in males and pulmonary arterial hypertension (PAH).