(E)-Ceftizoxime Impurity 37 CAS CATO-C4X-179337

Purity >90%In StockPharmaceutical Standards
CAS No.CATO-C4X-179337
Molecular FormulaC13H13N5O6S2
Molecular Weight399.40 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

(E)-Ceftizoxime Impurity 37 CAS CATO-C4X-179337 chemical structure

Description

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.

CATO supplies (E)-Ceftizoxime Impurity 37 (CAS CATO-C4X-179337), a certified reference material (molecular formula C13H13N5O6S2, MW 399.40 g/mol) for analytical method development and quality control.

The molecular framework of (E)-Ceftizoxime Impurity 37 (C13H13N5O6S2) is characterized by a nitrogen-containing heterocyclic scaffold, an amide group, a sulfone group, a hydroxyl group, an ether linkage. In reversed-phase chromatography, its retention is governed primarily by the protonation state of its nitrogen-containing groups, which provides a practical basis for HPLC-UV/DAD or LC-MS method development. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).

Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.

Physical & Chemical Properties

Molecular FormulaC13H13N5O6S2
Molecular Weight399.40 g/mol
Purity>90%
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)10.0
UV AbsorptionUV-absorbing
Structural FeaturesAromatic ring present
Nitrogen Atoms5
Sulfur Atoms2

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