N-Nitroso Metronidazole Impurity 33 CAS CATO-C4X-140533

Purity >90%In StockPharmacopoeial Impurity Standards
CAS No.CATO-C4X-140533
Molecular FormulaC4H6N4O
Molecular Weight126.12 g/mol
CategoryPharmacopoeial Impurity Standards / EP Impurities
AvailabilityIn Stock

Chemical Structure

N-Nitroso Metronidazole Impurity 33 CAS CATO-C4X-140533 chemical structure

Description

The molecular framework of N-Nitroso Metronidazole Impurity 33 (C4H6N4O) is characterized by 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.

N-Nitroso Metronidazole Impurity 33 (CAS CATO-C4X-140533) is a certified pharmaceutical impurity reference standard with the molecular formula C4H6N4O and a molecular weight of 126.12 g/mol.

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.

CATO manufactures N-Nitroso Metronidazole Impurity 33 under ISO 17034:2016 accreditation with dual CNAS and ANAB accreditation. Each batch is characterized by orthogonal methods and supplied with a full Certificate of Analysis (COA), ensuring metrological traceability.

Physical & Chemical Properties

Molecular FormulaC4H6N4O
Molecular Weight126.12 g/mol
Purity>90%
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)4.0
UV AbsorptionUV-absorbing
Nitrogen Atoms4

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