PRODUCT NAME: Sildenafil Methyl Sulfonate Ester Impurity
Date of Mfg: Sample COA	RETEST DATE: Sample COA

Catalogue Number	SIL-002
Item/Batch Number	Sample COA
Quantity	Sample COA
CAS Number	2512206-40-3
Mol. Formula	C18H22N4O5S
Molecular Wt	406.46
Synonyms	Methyl 4-ethoxy-3-(1-methyl-7-oxo-3-propyl-6,7-dihydro- 1H-pyrazolo [4,3-d]pyrimidin-5-yl)benzenesulfonate
Long Term Storage Condition	Store at 20°C, protect from direct sunlight and moisture.
Handling instruction	Sample COA

Test	Results
Appearance	Free Flow Solid
Water content by KF/TGA	Sample COA
% Potency = [100 - (Water content by KF)] X HPLC Purity)] / 100	Sample COA
Identification by HNMR	Sample COA
Identification By IR	Sample COA
Mass (ESI)	Sample COA
Solubility	DMSO
Purity	NLT 98%
Analysis Date (Release Date)	Sample COA
Attachments	Sample COA
Other Information	Sample COA
Note: This material can be used as a referance standard and is for research purpose ONLY and not for human consumption