Sildenafil Citrate, Usage : Erectile Dysfunction Treatment

We offer sildenafil citrate. (cas no: 171599-83-0) is a white or almost white crystalline powder. Sildenafil citrate is used to treat erectile dysfunction (ed) or impotence, in men.
product name: sildenafil citrate
therapeutic class: anti-erectile dysfunction agent
synonyms: 1-[[3-(6,7-dihydro-1-methyl-7-oxo-3-propyl-1h-pyrazolo[4,3-d]pyrimidin-5-yl)-4-ethoxyphenyl]sulfonyl]-4-methylpiperazine citrate
cas no : 171599-83-0
chemical formula: c28h38n6o11s
molecular weight: 666.70
specification :
assay: 99.0%min
appearance:white or almost white crystalline powder
identification: ir,uv
solubility : soluble in methanol
purity(by hplc): 99.0%min .