Oxcarbazepine Impurity 22 CAS 2642430-30-4

Purity >95%In StockPharmacopoeial Impurity Standards
CAS No.2642430-30-4
Molecular FormulaC16H13N3O3
Molecular Weight295.29 g/mol
CategoryPharmacopoeial Impurity Standards / EP Impurities
AvailabilityIn Stock

Chemical Structure

Oxcarbazepine Impurity 22 CAS 2642430-30-4 chemical structure

Description

The occurrence of Oxcarbazepine Impurity 22 is closely related to a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.

CATO supplies Oxcarbazepine Impurity 22 (CAS 2642430-30-4), a pharmacopoeial impurity reference standard (molecular formula C16H13N3O3, MW 295.29 g/mol) used for the identification and quantification of trace impurities in APIs.

Oxcarbazepine Impurity 22 (C16H13N3O3) contains a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage. It is notably hygroscopic, the carboxyl group imparts weak acidity; 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).

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.

As a certified reference material (CRM), Oxcarbazepine Impurity 22 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 FormulaC16H13N3O3
Molecular Weight295.29 g/mol
AppearancePale yellow to yellow crystalline powder
Purity>95%
StorageStore at 2-8°C, protect from light, keep sealed and dry
Solubility (reference)Soluble in DMSO, DMF, methanol
StabilityMay oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening
Degree of Unsaturation (DBE)12.0
UV AbsorptionUV-absorbing
Structural FeaturesAromatic ring present
CAS Registry Year (est.)2002
Nitrogen Atoms3

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