Sildenafil

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China

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Sildenafil

Viagra (Sildenafil Citrate)
Chemical Name: 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.: [139755-83-2;171599-83-0 ]
Molecular Formula: C22H3N6O4S-C6H8O7
Molecular Weight:666.7
Appearance: White crystal.
Solubility: Freely soluble in dimethyl formamide
Melting point: 190-193 DEG C
Residues on ignition: 0.2% max
Loss on drying: 0.5% max
Assay: 99% min
Heavy metal: 20ppm max
Uses: It is indicated for the treatment of erectile dysfunction
Packing: Aluminium or iron tin lined with plastic bag.

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