Cefotaxime Impurity 50 CAS CATO-C4X-120157

Purity >90%In StockPharmacopoeial Impurity Standards
CAS No.CATO-C4X-120157
Molecular FormulaC15H16N4O6S2
Molecular Weight412.44 g/mol
CategoryPharmacopoeial Impurity Standards / EP Impurities
AvailabilityIn Stock

Chemical Structure

Cefotaxime Impurity 50 CAS CATO-C4X-120157 chemical structure

Description

The occurrence of Cefotaxime Impurity 50 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.

Cefotaxime Impurity 50 (CAS CATO-C4X-120157) is a certified pharmaceutical impurity reference standard with the molecular formula C15H16N4O6S2 and a molecular weight of 412.44 g/mol.

Based on its molecular formula C15H16N4O6S2, Cefotaxime Impurity 50 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 412.44 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.

The assigned purity is verified by mass-balance and quantitative NMR (qNMR) approaches, with the expanded uncertainty reported at a 95% confidence level (k=2). Batch homogeneity and stability are independently assessed for every lot.

Physical & Chemical Properties

Molecular FormulaC15H16N4O6S2
Molecular Weight412.44 g/mol
Purity>90%
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)10.0
UV AbsorptionUV-absorbing
Structural FeaturesAromatic ring present
Nitrogen Atoms4
Sulfur Atoms2

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