PRODUCT NAME: N-Nitroso Donepezil EP Impurity A
Date of Mfg: Sample COA	RETEST DATE: Sample COA

Catalogue Number	DON-011
Item/Batch Number	Sample COA
Quantity	Sample COA
CAS Number	N/A
Mol. Formula	C17H22N2O4
Molecular Wt	318.37 g/mol
IUPAC	5,6-dimethoxy-2-((1-nitrosopiperidin-4-yl)methyl)-2,3-dihydro-1H-inden-1-one
Synonyms	N-Nitroso Donepezil Desbenzyl Impurity
Long Term Storage Condition	Refrigerator
Handling instruction	Sample COA

Test	Results
Appearance	Off white 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	Methanol, DMSO
Purity	99.79% HPLC
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