Albendazole impurity 33 CAS CATO-C4X-153533

Purity 97%+In StockPharmacopoeial Impurity Standards
CAS No.CATO-C4X-153533
Molecular FormulaC11H14N4OS
Molecular Weight250.32 g/mol
CategoryPharmacopoeial Impurity Standards / EP Impurities
AvailabilityIn Stock

Chemical Structure

Albendazole impurity 33 CAS CATO-C4X-153533 chemical structure

Description

Albendazole impurity 33 (C11H14N4OS) contains a nitrogen-containing heterocyclic scaffold, an amide group, sulfur-containing functionality, a hydroxyl group, an ether linkage. Its physicochemical properties are representative of its class; these physicochemical properties determine the optimal preparation and storage of its standard solutions. 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).

CATO supplies Albendazole impurity 33 (CAS CATO-C4X-153533), a pharmacopoeial impurity reference standard (molecular formula C11H14N4OS, MW 250.32 g/mol) used for the identification and quantification of trace impurities in APIs.

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 FormulaC11H14N4OS
Molecular Weight250.32 g/mol
Purity97%+
StorageStore at 2-8°C, protect from light
Solubility (reference)Soluble in DMSO, DMF, methanol
StabilityLight-sensitive; avoid direct strong light
Degree of Unsaturation (DBE)7.0
UV AbsorptionUV-absorbing
Structural FeaturesAromatic ring present
Nitrogen Atoms4
Sulfur Atoms1

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