PRODUCT NAME: Losartan EP Impurity K
Date of Mfg: Sample COA	RETEST DATE: Sample COA

Catalogue Number	LOS-015
Item/Batch Number	Sample COA
Quantity	Sample COA
CAS Number	114798-36-6
Mol. Formula	C22H21ClN6O
Molecular Wt	420.89
IUPAC	2-butyl-5-chloro-3-[[4-[2-(2H-tetrazol-5-yl)phenyl]phenyl]methyl]imidazole-4-carbaldehyde
Synonyms	Losartan Aldehyde; 2-Butyl-4-chloro-1-[[2'-(1H-tetrazol-5-yl)[1,1'-biphenyl]-4-yl]methyl]-1H-imidazole-5-carboxaldehyde; 2-Butyl-4-chloro-1-[p-(o-1H-tetrazol-5-ylphenyl)benzyl]imidazole-5-formaldehyde; Losartan Carboxaldehyde; 1-((2'-(1H-tetrazol-5-yl)-[1,1'-biphenyl]-4-yl)methyl)-2-butyl-4-chloro-1H-imidazole-5-carbaldehyde
Long Term Storage Condition	2-8°C Refrigerator, Under Inert Atmosphere
Handling instruction	Sample COA

Test	Results
Appearance	Off-White to Pale Yellow 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	Chloroform (Slightly), Ethanol (Slightly), Methanol (Slightly)
Purity	NLT 97.84 % 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