Furazolidone Impurity 4 CAS CATO-C4X-29014

Purity 95%In StockPharmacopoeial Impurity Standards
CAS No.CATO-C4X-29014
Molecular FormulaC3H6N2O2
Molecular Weight102.09 g/mol
CategoryPharmacopoeial Impurity Standards / EP Impurities
AvailabilityIn Stock

Chemical Structure

Furazolidone Impurity 4 CAS CATO-C4X-29014 chemical structure

Description

CATO supplies Furazolidone Impurity 4 (CAS CATO-C4X-29014), a pharmacopoeial impurity reference standard (molecular formula C3H6N2O2, MW 102.09 g/mol) used for the identification and quantification of trace impurities in APIs.

The molecular framework of Furazolidone Impurity 4 (C3H6N2O2) is characterized by an amino-acid-derived structure, an amide 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. 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 FormulaC3H6N2O2
Molecular Weight102.09 g/mol
Purity95%
StorageStore at 2-8°C, protect from light, keep sealed and dry
Solubility (reference)Soluble in DMSO, DMF, methanol
StabilityLight-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening
Degree of Unsaturation (DBE)2.0
Nitrogen Atoms2

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