Analytical Reference substance

Azelastine EP Impurity E /Azelastine USP RC E (Mixture of Z/E-Isomers) ;

3-(4-Chlorobenzylidene)isobenzofuran-1(3H)-one ; 3-(4-Chlorobenzal)phthalide ;


Product Number: OLY-AZL-E
CAS Number: 20526-97-0
Lot Number:
Molecular Formula: C15H9ClO2
Molecular Weight: 256.68

Long Term Storage: 02-08 °C
Appearance:
Melting Point:
Purity By HPLC: NLT 95%

Sr No. Test Results Date ref.
1 1H NMR Confirm Report Attached
2 Mass Confirm Report Attached
3 HPLC NLT 95% Report Attached
Expiry Date: 25-04-2026
This certificate is valid for two years from the date of Manufacturing Provided the substance is stored under the recommended conditions.

Document data reference:
Prepared by

Dr. Ashish Keche
Head of QA & QC
Reviewed by

Dr. Girish Hatnapure
Head of R& D
Approved by

Dr. Atish Rodge
Managing Director

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