Epalrestat impurity 31 CAS CATO-C4X-223631

Purity 97%+In StockPharmacopoeial Impurity Standards
CAS No.CATO-C4X-223631
Molecular FormulaC11H12O
Molecular Weight160.21 g/mol
CategoryPharmacopoeial Impurity Standards / EP Impurities
AvailabilityIn Stock

Chemical Structure

Epalrestat impurity 31 CAS CATO-C4X-223631 chemical structure

Description

Epalrestat impurity 31 (CAS CATO-C4X-223631) is a certified pharmaceutical impurity reference standard with the molecular formula C11H12O and a molecular weight of 160.21 g/mol.

Epalrestat impurity 31 (C11H12O) contains a hydroxyl group, an ether linkage, an aromatic ring system. Its high carbon-to-hydrogen ratio confers good lipid solubility; 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.

As a certified reference material (CRM), Epalrestat impurity 31 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 FormulaC11H12O
Molecular Weight160.21 g/mol
Purity97%+
StorageStore at 2-8°C, protect from light
Solubility (reference)Soluble in chloroform, dichloromethane, ethyl acetate, DMSO
StabilityLight-sensitive; avoid direct strong light
Degree of Unsaturation (DBE)6.0
UV AbsorptionUV-absorbing
Structural FeaturesAromatic ring present

Related Epalrestat Standards

Recommended Standards

Why CATO?