Cefadroxil EP Impurity G（Cefradine EP Impurity F/Cefalexin EP Impurity D） CAS 34876-35-2

Purity >80%In StockPharmacopoeial Impurity Standards
CAS No.34876-35-2
Molecular FormulaC5H6O2S
Molecular Weight130.16 g/mol
CategoryPharmacopoeial Impurity Standards / EP Impurities
AvailabilityIn Stock

Chemical Structure

Cefadroxil EP Impurity G（Cefradine EP Impurity F/Cefalexin EP Impurity D） CAS 34876-35-2 chemical structure

Description

Compared with other compounds in its class, the molecular weight of 130.16 g/mol gives Cefadroxil EP Impurity G（Cefradine EP Impurity F/Cefalexin EP Impurity D） distinctive chromatographic separation conditions and mass-spectrometry parameter settings.

CATO supplies Cefadroxil EP Impurity G（Cefradine EP Impurity F/Cefalexin EP Impurity D） (CAS 34876-35-2), a pharmacopoeial impurity reference standard (molecular formula C5H6O2S, MW 130.16 g/mol) used for the identification and quantification of trace impurities in APIs.

Based on its molecular formula C5H6O2S, Cefadroxil EP Impurity G（Cefradine EP Impurity F/Cefalexin EP Impurity D） contains a sulfone group, a carboxylic acid group, a hydroxyl group, an ether linkage; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 130.16 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. 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).

Recommended for quantitative analysis by HPLC, GC, LC-MS/MS, or GC-MS as an external calibration standard; it can also be used for spiked-recovery experiments, LOD/LOQ determination, and LC-MS/MS multiple-reaction-monitoring (MRM) calibration.

As a certified reference material (CRM), Cefadroxil EP Impurity G（Cefradine EP Impurity F/Cefalexin EP Impurity D） 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 FormulaC5H6O2S
Molecular Weight130.16 g/mol
Purity>80%
StorageStore at 2-8°C
Solubility (reference)Soluble in methanol, acetonitrile, DMSO, water (slightly soluble)
StabilityMay oxidize slowly on prolonged air exposure
Degree of Unsaturation (DBE)3.0
UV AbsorptionUV-absorbing
CAS Registry Year (est.)1966
Sulfur Atoms1

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