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CERTIFICATE OF ANALYSIS Reference Substance

Date

Losartan potassium impurity-L/Losartan Dimer 1 Batch No.:

Molecular Formula: C44H44Cl2N12O Molecular Weight: 827.81 Sr.# 1 2 3 4

Test Appearance Purity by HPLC MASS NMR

Results Off white colored powder 99.29% Conform Conform

Data ref. -----Chromatogram attached Report attached Report attached

Storage condition: Store at 2-8째C and protect from moisture. Shipment date: This certificate of analysis is valid for two years from date of manufacturing provided the substance is stored under suitable conditions. Date of manufacturing: Retest Date: Document data reference:

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Losartan dimer 1  
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