Analytical Reference substance

Finasteride EP Impurity B

3-Oxo-4-aza-5?-?ndrost-1-ene-17?-carboxylic acid methyl ester

Product Number: OLY-FIN-B
CAS Number: 103335-41-7
Lot Number:
Molecular Formula: C20H29NO3
Molecular Weight: 331.45

Long Term Storage: 02-08 °C
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: 12-02-2026
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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