Imrecoxib Impurity 14 CAS 959003-56-6

Purity >95%In StockPharmacopoeial Impurity Standards
CAS No.959003-56-6
Molecular FormulaC18H16O4S
Molecular Weight328.38 g/mol
CategoryPharmacopoeial Impurity Standards / EP Impurities
AvailabilityIn Stock

Chemical Structure

Imrecoxib Impurity 14 CAS 959003-56-6 chemical structure

Description

As a certified reference material (CRM), Imrecoxib Impurity 14 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.

Imrecoxib Impurity 14 (CAS 959003-56-6) is a certified pharmaceutical impurity reference standard with the molecular formula C18H16O4S and a molecular weight of 328.38 g/mol.

Imrecoxib Impurity 14 (C18H16O4S) contains a flavonoid core, a sulfone group, a hydroxyl group, an ether linkage. Its high carbon-to-hydrogen ratio confers good lipid solubility, the carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. 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.

Physical & Chemical Properties

Molecular FormulaC18H16O4S
Molecular Weight328.38 g/mol
Purity>95%
StorageStore at 2-8°C, protect from light, keep sealed and dry
Solubility (reference)Soluble in chloroform, dichloromethane, ethyl acetate, DMSO
StabilityMay oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light
Degree of Unsaturation (DBE)11.0
UV AbsorptionUV-absorbing
Structural FeaturesAromatic ring present
CAS Registry Year (est.)1987
Sulfur Atoms1

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