Product Name: Sildenafil CAS NO.: 171599-83-0 Molecular Formula: C22H3N6O4S-C6H8O7 Molecular Weight: 666.7 Appearance: white to almost white crystalline powder, odorless, tasteless, can not soluble in water, ethanol Specification: Assay: e99.6; MP: 186^187; Heavy Metals: d20ppm; Loss on drying: d2.5; Residue on Ignition: d0.05 Use: It is pharmaceutical raw material, indicated for the treatment of erectile dysfunction. Pls find our main products as follows: Levitra Tadarafil-B Tadarafil-B(CialisIC-351) Hongdenafil Acetilde nafil Weight Reduction Ingredients Sibutramine Hydrochloride rimonabant Women Health Ingredients spanish fly Emial:hubeizd at gmail dot com