Hydroquinone Impurity 5 CAS CATO-C4X-25985

Purity >95%In StockPharmacopoeial Impurity Standards
CAS No.CATO-C4X-25985
Molecular FormulaC30H34O2
Molecular Weight426.59 g/mol
CategoryPharmacopoeial Impurity Standards / EP Impurities
AvailabilityIn Stock

Chemical Structure

Hydroquinone Impurity 5 CAS CATO-C4X-25985 chemical structure

Description

As a certified reference material (CRM), Hydroquinone Impurity 5 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.

CATO supplies Hydroquinone Impurity 5 (CAS CATO-C4X-25985), a pharmacopoeial impurity reference standard (molecular formula C30H34O2, MW 426.59 g/mol) used for the identification and quantification of trace impurities in APIs.

Hydroquinone Impurity 5 (C30H34O2) contains a steroid core, 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 FormulaC30H34O2
Molecular Weight426.59 g/mol
AppearancePale yellow to yellow crystalline powder
Purity>95%
StorageStore at room temperature, protect from light
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)14.0
UV AbsorptionUV-absorbing
Structural FeaturesAromatic ring present

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