Cholic Acid Impurity 78 CAS 79732-73-3

Description

Compared with other compounds in its class, the molecular weight of 406.56 g/mol gives Cholic Acid Impurity 78 distinctive chromatographic separation conditions and mass-spectrometry parameter settings.

Cholic Acid Impurity 78 (CAS 79732-73-3) is a certified pharmaceutical impurity reference standard with the molecular formula C24H38O5 and a molecular weight of 406.56 g/mol.

The molecular framework of Cholic Acid Impurity 78 (C24H38O5) is characterized by a steroid core, a hydroxyl group, an ether linkage. In reversed-phase chromatography, its retention is governed primarily by the polarity and ionization state of its functional groups, which provides a practical basis for HPLC-UV/DAD or LC-MS method development. 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.

As a certified reference material (CRM), Cholic Acid Impurity 78 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

Why CATO?

• ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
• 130,000+ catalog items in stock, COA supplied with every batch
• Worldwide shipping with full export documentation (HS code guidance available)
• Technical support: +86 18665070610 / Nicole.chen@cato-chem.com