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Includes: HPLC, MASS/LC-MS, 1H NMR, FT-IR, Potency, Structure Elucidation Report (SER), and additional analytical data depending on the product.

Oseltamivir Impurity 41

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Catalogue No.:	VE0010230
CAS No.:	N/A
Mol. Formula:	C16H27N7O4
Mol. Weight:	381.4 g/mol

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Additional information on Oseltamivir Impurity 41

Parent drug

Oseltamivir

IUPAC Name

Ethyl (3S,4R,5S)-4-acetamido-2,5-diazido-3-(pentan-3-yloxy)cyclohexane-1-carboxylate

Synonyms

N/A

Description

Oseltamivir Impurity 41 is a defined process-related related substance with molecular formula C16H27N7O4 and molecular weight 381.4 g/mol. Its composition indicates a highly nitrogenated, oxygenated scaffold consistent with a polar oseltamivir-derived transformation product rather than the parent neuraminidase inhibitor. Such entities commonly arise during late-stage coupling, amine functionalization, or hydrolytic and oxidative degradation of the prodrug framework. Because structurally related impurities in this series may be assessed under ICH Q3A and, when relevant to mutagenic concern, ICH M7, characterization typically relies on LC-MS/MS, high-resolution MS, and orthogonal LC-UV methods, with occasional NMR confirmation.