PRODUCT NAME: Esomeprazole Pyridinium impurity
Date of Mfg: Sample COA	RETEST DATE: Sample COA

Catalogue Number	ESM-004
Item/Batch Number	Sample COA
Quantity	Sample COA
CAS Number	1227380-90-6
Mol. Formula	C16H15N3O4
Molecular Wt	313.31
IUPAC	1-(6-methoxy-1H-benzimidazol-2-yl)-3,5-dimethyl-4-oxopyridine-2-carboxylic acid
Synonyms	Omeprazole Pyridone Acid Impurity; 1-(5-Methoxy-1H-benzo[d]imidazol-2-yl)-3,5-dimethyl-4-oxo-1,4-dihydropyridine-2-carboxylic Acid; 1,4-Dihydro-1-(6-methoxy-1H-benzimidazol-2-yl)-3,5-dimethyl-4-oxo-2-pyridinecarboxylic Acid; 1-(6-Methoxy-1H-benzo[d]iMidazol-2-yl)-3,5-diMethyl-4-oxo-1,4-dihydropyridine-2-carboxylic Acid
Long Term Storage Condition	2-8°C Refrigerator
Handling instruction	Sample COA

Test	Results
Appearance	Off white colored 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	Soluble in DMSO
Purity	NLT 99.10 % By 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