Sildenafil
Sildenafil

Synonyms: 5-[2-Ethoxy-5-(4-methylpiperazin-1-yl-sulphonyl)phenyl]-1-methyl-3-n-propyl-1,6-dihydro-7H-pyrazol[4,3d]pyrimidin-7-one

Molecular Formula: C22H30N6O4S

Molecular Weight: 474.58

CAS Registry Number: 139755-83-2

Assay:NLT 99.5%

Appearance:White or kind of white crystal powder

Melting point:186 ~ 187℃

Loss on drying:NMT 2.5%

Heavy metal content:NMT 20ppm

Usage:That sildenafil is now the price is low, is the development and production of low phosphorus, the kidney Yang types of medicine health products ideal raw materials. That sildenafil is treat male erectile dysfunction orally