PRODUCT NAME: Vardenafil Nitroso Impurity 1
Date of Mfg: Sample COA	RETEST DATE: Sample COA

Catalogue Number	NIO-075
Item/Batch Number	Sample COA
Quantity	Sample COA
CAS Number	NA
Mol. Formula	C23H31N7O5S
Molecular Wt	517.6
Synonyms	2-(2-Ethoxy-5-((4-ethylpiperazin-1-yl)sulfonyl)phenyl)-5-methyl-1-nitroso-7-propylimidazo[5,1-f][1,2,4]triazin-4(1H)-one
Long Term Storage Condition	Keep container tightly closed in a dry and well-ventilated place
Handling instruction	Sample COA

Test	Results
Appearance
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
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