Methylprednisolone Impurity 53 CAS CATO-C4X-191953

Description

Compared with other compounds in its class, the molecular weight of 458.54 g/mol gives Methylprednisolone Impurity 53 distinctive chromatographic separation conditions and mass-spectrometry parameter settings.

CATO supplies Methylprednisolone Impurity 53 (CAS CATO-C4X-191953), a pharmacopoeial impurity reference standard (molecular formula C26H34O7, MW 458.54 g/mol) used for the identification and quantification of trace impurities in APIs.

Structurally, Methylprednisolone Impurity 53 (C26H34O7) contains a carboxylic acid group, a hydroxyl group, an ether linkage, a polycyclic aromatic system. The molecule exhibits a degree of unsaturation (DBE) of 10.0, corresponding to approximately 10 ring(s) or double-bond equivalent(s). With a molecular weight of 458.54 g/mol, it falls into the moderately-high-molecular-weight range. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).

Recommended for quantitative analysis by HPLC, GC, LC-MS/MS, or GC-MS as an external calibration standard; it can also be used for spiked-recovery experiments, LOD/LOQ determination, and LC-MS/MS multiple-reaction-monitoring (MRM) calibration.

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