Cefpodoxime Proxetil Impurity 33 (Mixture of Diastereomers) CAS CATO-C4X-157933

Purity >95%In StockPharmacopoeial Impurity Standards
CAS No.CATO-C4X-157933
Molecular FormulaC23H29N5O11S2
Molecular Weight615.63 g/mol
CategoryPharmacopoeial Impurity Standards / EP Impurities
AvailabilityIn Stock

Chemical Structure

Cefpodoxime Proxetil Impurity 33 (Mixture of Diastereomers) CAS CATO-C4X-157933 chemical structure

Description

The occurrence of Cefpodoxime Proxetil Impurity 33 (Mixture of Diastereomers) is closely related to a flavonoid core, an amide group, a sulfone group, a hydroxyl group, an ether linkage in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.

As a process- or degradation-related impurity, Cefpodoxime Proxetil Impurity 33 (Mixture of Diastereomers) (CAS CATO-C4X-157933, C23H29N5O11S2) is essential for impurity profiling, related-substances testing, and forced-degradation studies in pharmaceutical development.

Based on its molecular formula C23H29N5O11S2, Cefpodoxime Proxetil Impurity 33 (Mixture of Diastereomers) contains a flavonoid core, an amide group, a sulfone group, a hydroxyl group, an ether linkage; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 615.63 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.

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.

As a certified reference material (CRM), Cefpodoxime Proxetil Impurity 33 (Mixture of Diastereomers) 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.

Physical & Chemical Properties

Molecular FormulaC23H29N5O11S2
Molecular Weight615.63 g/mol
Purity>95%
StorageStore in a cool place (≤25°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)12.0
UV AbsorptionUV-absorbing
Structural FeaturesAromatic ring present
Nitrogen Atoms5
Sulfur Atoms2

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