Oseltamivir Impurity 191 CAS CATO-C4X-1720191

Purity >95%In StockPharmacopoeial Impurity Standards
CAS No.CATO-C4X-1720191
Molecular FormulaC14H24O5
Molecular Weight272.34 g/mol
CategoryPharmacopoeial Impurity Standards / EP Impurities
AvailabilityIn Stock

Chemical Structure

Oseltamivir Impurity 191 CAS CATO-C4X-1720191 chemical structure

Description

Structurally, Oseltamivir Impurity 191 (C14H24O5) contains a carboxylic acid group, a hydroxyl group, an ether linkage. The molecule exhibits a degree of unsaturation (DBE) of 3.0, corresponding to approximately 3 ring(s) or double-bond equivalent(s). With a molecular weight of 272.34 g/mol, it falls into the medium-molecular-weight range. The presence of an aromatic ring or conjugated system gives the compound characteristic absorption bands in the UV-Vis region, making it well suited to UV or diode-array detection (DAD).

Oseltamivir Impurity 191 (CAS CATO-C4X-1720191) is a certified pharmaceutical impurity reference standard with the molecular formula C14H24O5 and a molecular weight of 272.34 g/mol.

This reference standard supports related-substances testing and method development in line with ICH Q3A/Q3B guidance on impurity control, and is suitable for system suitability testing and forced-degradation studies.

CATO manufactures Oseltamivir Impurity 191 under ISO 17034:2016 accreditation with dual CNAS and ANAB accreditation. Each batch is characterized by orthogonal methods and supplied with a full Certificate of Analysis (COA), ensuring metrological traceability.

Physical & Chemical Properties

Molecular FormulaC14H24O5
Molecular Weight272.34 g/mol
Purity>95%
StorageStore in a cool place (≤25°C), keep sealed and dry
Solubility (reference)Soluble in methanol, acetonitrile, DMSO, water (slightly soluble)
StabilityMay oxidize slowly on prolonged air exposure; Hygroscopic; reseal immediately after opening
Degree of Unsaturation (DBE)3.0
UV AbsorptionUV-absorbing

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