Betamethasone impurity 72 CAS CATO-C4X-143772

Description

Compared with other compounds in its class, the molecular weight of 868.88 g/mol gives Betamethasone impurity 72 distinctive chromatographic separation conditions and mass-spectrometry parameter settings.

Betamethasone impurity 72 (CAS CATO-C4X-143772) is a certified pharmaceutical impurity reference standard with the molecular formula C44H56F2O12PNa and a molecular weight of 868.88 g/mol.

Based on its molecular formula C44H56F2O12PNa, Betamethasone impurity 72 contains a phosphate ester group, a carboxylic acid group, a hydroxyl group, an ether linkage, fluorine substitution, a polycyclic aromatic system; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 868.88 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. 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.

The assigned purity is verified by mass-balance and quantitative NMR (qNMR) approaches, with the expanded uncertainty reported at a 95% confidence level (k=2). Batch homogeneity and stability are independently assessed for every lot.

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