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1364932-19-3Oseltamivir EP Impurity A

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Catalogue No.:	VL900013
CAS No.:	1364932-19-3
Mol. Formula:	C14H24N2O4
Mol. Weight:	284.35 g/mol

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Additional information on CAS 1364932-19-3

Parent drug

Oseltamivir

IUPAC Name

(3R,4R,5S)-5-acetamido-4-amino-3-(1-ethylpropoxy)-cyclohex-1-ene-1-carboxylic acid

Pharmacopoeial Synonyms

Oseltamivir BP Impurity A

Other Synonyms

4-N-Desacetyl-5-N-acetyl Oseltamivir Acid; 1-Cyclohexene-1-carboxylic acid, 5-(acetylamino)-4-amino-3-(1-ethylpropoxy)-, (3R,4R,5S)-

Smiles

CCC(CC)O[C@@H]1C=C(C[C@@H]([C@H]1N)NC(=O)C)C(=O)O

InChI

InChI=1S/C14H24N2O4/c1-4-10(5-2)20-12-7-9(14(18)19)6-11(13(12)15)16-8(3)17/h7,10-13H,4-6,15H2,1-3H3,(H,16,17)(H,18,19)/t11-,12+,13+/m0/s1

Description

Oseltamivir EP Impurity A, also designated Oseltamivir BP Impurity A, is a defined process-related impurity associated with the oseltamivir synthetic sequence rather than a classical degradant. It is identified by CAS 1364932-19-3 and has molecular formula C14H24N2O4 with molecular weight 284.35 g/mol. Structurally, it reflects an aminoester intermediate or closely related side-product arising from incomplete functional group elaboration. Because such impurities may persist at trace level, characterization commonly relies on LC-MS/MS, LC-HRMS, and, where needed, chiral or ion-pair HPLC. Its regulatory significance lies in impurity profiling under pharmacopeial specifications and impurity control expectations.