Sildenafil Mesylate

White powder

99.0% Min

99.9% min (top grade)

Enterprise standard

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Appearance: White crystalline powder

Assay:≥99.5%

Solubility:Diffluent in Ach, slightly soluble in methanol, almost insoluble in chloroform

Identification HPLC:Comply with standard

IR: IR should comply with the reference standard spectrum

Loss on Drying: 1.0%max

Acidity:3.0-5.0

Residue on ignition:0.1%max

Heavy Metals: 20ppm max

Releva nt Impurity: 0.5% max

Methanol: 0.3% max

Methylene dichloride; 0.06% max

N,N-Dimethyl formamide:0.088% max

Enterprise standard

99.9% min

Enterprise standard