Valproate Impurity 83 CAS CATO-C4X-116683

Purity 97%+In StockPharmacopoeial Impurity Standards
CAS No.CATO-C4X-116683
Molecular FormulaC9H14O4
Molecular Weight186.21 g/mol
CategoryPharmacopoeial Impurity Standards / EP Impurities
AvailabilityIn Stock

Chemical Structure

Valproate Impurity 83 CAS CATO-C4X-116683 chemical structure

Description

As a certified reference material (CRM), Valproate Impurity 83 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.

As a process- or degradation-related impurity, Valproate Impurity 83 (CAS CATO-C4X-116683, C9H14O4) is essential for impurity profiling, related-substances testing, and forced-degradation studies in pharmaceutical development.

Valproate Impurity 83 (C9H14O4) contains a carboxylic acid 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).

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.

Physical & Chemical Properties

Molecular FormulaC9H14O4
Molecular Weight186.21 g/mol
Purity97%+
StorageStore at 2-8°C, keep sealed and dry
Solubility (reference)Soluble in methanol, ethanol, DMSO
StabilityMay oxidize slowly on prolonged air exposure; Hygroscopic; reseal immediately after opening
Degree of Unsaturation (DBE)3.0
UV AbsorptionUV-absorbing

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