Cenobamate Impurity 43 CAS CATO-C4X-241643

Purity 97%+In StockPharmacopoeial Impurity Standards
CAS No.CATO-C4X-241643
Molecular FormulaC9H9BrClNO2
Molecular Weight278.53 g/mol
CategoryPharmacopoeial Impurity Standards / EP Impurities
AvailabilityIn Stock

Chemical Structure

Cenobamate Impurity 43 CAS CATO-C4X-241643 chemical structure

Description

Compared with other compounds in its class, the molecular weight of 278.53 g/mol gives Cenobamate Impurity 43 distinctive chromatographic separation conditions and mass-spectrometry parameter settings.

Cenobamate Impurity 43 (CAS CATO-C4X-241643) is a certified pharmaceutical impurity reference standard with the molecular formula C9H9BrClNO2 and a molecular weight of 278.53 g/mol.

The molecular framework of Cenobamate Impurity 43 (C9H9BrClNO2) is characterized by a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage, chlorine/bromine substitution. 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.

As a certified reference material (CRM), Cenobamate Impurity 43 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 FormulaC9H9BrClNO2
Molecular Weight278.53 g/mol
AppearanceOff-white to pale yellow crystalline powder. (slight halide-like odor, faint amine-like odor, low volatility)
Purity97%+
StorageStore at 2-8°C, protect from light, keep tightly closed to prevent evaporation
Solubility (reference)Soluble in methanol, acetonitrile, DMSO, water (slightly soluble)
StabilityMay oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Contains ester bond; hydrolyzes under strong alkaline conditions
Degree of Unsaturation (DBE)5.0
UV AbsorptionUV-absorbing
Structural FeaturesAromatic ring present
Halogen ContentCl/Br-containing
Nitrogen Atoms1

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