PRODUCT NAME: Rabeprazole EP Impurity I
Date of Mfg: Sample COA	RETEST DATE: Sample COA

Catalogue Number	RAB-013
Item/Batch Number	Sample COA
Quantity	Sample COA
CAS Number	924663-37-6
Mol. Formula	C₁₈H₂₁N₃O₅S
Molecular Wt	391.44
IUPAC	2-[[4-(3-methoxypropoxy)-3-methyl-1-oxidopyridin-1-ium-2-yl]methylsulfonyl]-1H-benzimidazole
Synonyms	Rabeprazole Sulfone N-Oxide; 2-[[[4-(3-Methoxypropoxy)-3-methyl-1-oxido-2-pyridinyl]methyl]sulfonyl]-1H-benzimidazole
Long Term Storage Condition	2-8°C Refrigerator
Handling instruction	Sample COA

Test	Results
Appearance	Off-White to Beige 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 (Slightly), Methanol (Slightly)
Purity	NLT 95% 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