Cholic Acid Impurity 59 CAS 10190-22-4

Purity 97%+In StockPharmacopoeial Impurity Standards
CAS No.10190-22-4
Molecular FormulaC25H42O5
Molecular Weight422.60 g/mol
CategoryPharmacopoeial Impurity Standards / EP Impurities
AvailabilityIn Stock

Chemical Structure

Cholic Acid Impurity 59 CAS 10190-22-4 chemical structure

Description

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.

CATO supplies Cholic Acid Impurity 59 (CAS 10190-22-4), a pharmacopoeial impurity reference standard (molecular formula C25H42O5, MW 422.60 g/mol) used for the identification and quantification of trace impurities in APIs.

Cholic Acid Impurity 59 (C25H42O5) contains a steroid core, a hydroxyl group, an ether linkage. 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).

As a certified reference material (CRM), Cholic Acid Impurity 59 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 FormulaC25H42O5
Molecular Weight422.60 g/mol
AppearanceOff-white to pale yellow crystalline powder
Purity97%+
StorageStore at room temperature, keep sealed and dry
Solubility (reference)Soluble in methanol, acetonitrile, DMSO, water (slightly soluble)
StabilityMay oxidize slowly on prolonged air exposure
Degree of Unsaturation (DBE)5.0
UV AbsorptionUV-absorbing
Structural FeaturesAromatic ring present
CAS Registry Year (est.)1959

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