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Certificate of Analysis

Sildenafil Citrate

Molecular Formula:	C₂₂H₃₀N₆O₄S.C₆H₈O₇
Molecular Weight:	666.7
CAS No.:	171599-83-0
Storage (From the date of receipt):	3 years -20°C powder
	1 year -80°C in solvent
Image:

HPLC: 99.83% purity | NMR: Consistent with structure