Ampicillin Impurity 52 CAS CATO-C4X-144352

Purity >95%In StockPharmacopoeial Impurity Standards
CAS No.CATO-C4X-144352
Molecular FormulaC8H10NNaO5S
Molecular Weight255.22 g/mol
CategoryPharmacopoeial Impurity Standards / EP Impurities
AvailabilityIn Stock

Chemical Structure

Ampicillin Impurity 52 CAS CATO-C4X-144352 chemical structure

Description

Compared with other compounds in its class, the molecular weight of 255.22 g/mol gives Ampicillin Impurity 52 distinctive chromatographic separation conditions and mass-spectrometry parameter settings.

CATO supplies Ampicillin Impurity 52 (CAS CATO-C4X-144352), a pharmacopoeial impurity reference standard (molecular formula C8H10NNaO5S, MW 255.22 g/mol) used for the identification and quantification of trace impurities in APIs.

Structurally, Ampicillin Impurity 52 (C8H10NNaO5S) contains a nitrogen-containing heterocyclic scaffold, an amide group, a sulfone group, a hydroxyl group, an ether linkage. The molecule exhibits a degree of unsaturation (DBE) of 4.5, corresponding to approximately 4 ring(s) or double-bond equivalent(s). With a molecular weight of 255.22 g/mol, it falls into the medium-molecular-weight range. 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 FormulaC8H10NNaO5S
Molecular Weight255.22 g/mol
Purity>95%
StorageStore at 2-8°C, protect from light, keep sealed and dry
Solubility (reference)Soluble in methanol, ethanol, DMSO
StabilityMay oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening
Degree of Unsaturation (DBE)4.5
UV AbsorptionUV-absorbing
Structural FeaturesAromatic ring present
Nitrogen Atoms1
Sulfur Atoms1

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