Cenobamate impurity 4 CAS 1259059-68-1

Purity 97%+In StockPharmacopoeial Impurity Standards
CAS No.1259059-68-1
Molecular FormulaC9H7ClN4O
Molecular Weight222.63 g/mol
CategoryPharmacopoeial Impurity Standards / EP Impurities
AvailabilityIn Stock

Chemical Structure

Cenobamate impurity 4 CAS 1259059-68-1 chemical structure

Description

Compared with other compounds in its class, the molecular weight of 222.63 g/mol gives Cenobamate impurity 4 distinctive chromatographic separation conditions and mass-spectrometry parameter settings.

Cenobamate impurity 4 (CAS 1259059-68-1) is a certified pharmaceutical impurity reference standard with the molecular formula C9H7ClN4O and a molecular weight of 222.63 g/mol.

Owing to a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage, chlorine substitution, Cenobamate impurity 4 is typically pale yellow to yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 222.63 g/mol — guide the selection of appropriate sample preparation and analytical techniques. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).

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 4 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 FormulaC9H7ClN4O
Molecular Weight222.63 g/mol
AppearancePale yellow to yellow crystalline powder. (slight halide-like odor, faint amine-like odor)
Purity97%+
StorageStore at 2-8°C, protect from light, keep tightly closed to prevent evaporation
Solubility (reference)Soluble in DMSO, DMF, methanol
StabilityMay oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light
Degree of Unsaturation (DBE)8.0
UV AbsorptionUV-absorbing
Structural FeaturesAromatic ring present
CAS Registry Year (est.)1990
Halogen ContentCl-containing
Nitrogen Atoms4

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