Betamethasone 17A-Valerate CAS 2152-44-5

Description

Compared with other compounds in its class, the molecular weight of 476.58 g/mol gives Betamethasone 17A-Valerate distinctive chromatographic separation conditions and mass-spectrometry parameter settings.

Betamethasone 17A-Valerate (CAS 2152-44-5) is a high-purity analytical reference standard with the molecular formula C27H37FO6 and a molecular weight of 476.58 g/mol.

The molecular framework of Betamethasone 17A-Valerate (C27H37FO6) is characterized by a steroid core, a hydroxyl group, an ether linkage, fluorine substitution. 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. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.

This reference standard is suitable for quantitative analysis on major chromatographic platforms including HPLC, GC, LC-MS/MS, and GC-MS, serving as an external calibration standard or a system suitability test reference material.

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

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