Oseltamivir impurity 205 CAS CATO-C4X-1720205

Purity 97%+In StockPharmacopoeial Impurity Standards
CAS No.CATO-C4X-1720205
Molecular FormulaC16H27N3O5
Molecular Weight341.40 g/mol
CategoryPharmacopoeial Impurity Standards / EP Impurities
AvailabilityIn Stock

Chemical Structure

Oseltamivir impurity 205 CAS CATO-C4X-1720205 chemical structure

Description

As a certified reference material (CRM), Oseltamivir impurity 205 meets the metrological traceability requirements of ISO/IEC 17025 laboratories. Batch-to-batch consistency is monitored via control charts to guarantee comparable assigned values across lots.

Oseltamivir impurity 205 (CAS CATO-C4X-1720205) is a certified pharmaceutical impurity reference standard with the molecular formula C16H27N3O5 and a molecular weight of 341.40 g/mol.

Oseltamivir impurity 205 (C16H27N3O5) contains a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage. It is notably hygroscopic, the carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).

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.

Physical & Chemical Properties

Molecular FormulaC16H27N3O5
Molecular Weight341.40 g/mol
AppearanceOff-white to pale yellow crystalline powder
Purity97%+
StorageStore at 2-8°C, protect from light, keep sealed and dry
Solubility (reference)Soluble in DMSO, DMF, methanol
StabilityMay oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening
Degree of Unsaturation (DBE)5.0
UV AbsorptionUV-absorbing
Structural FeaturesAromatic ring present
Nitrogen Atoms3

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