(3a,5a,7a,12a,23S)-Cholestane-3,7,12,23,25-pentol CAS 137252-15-4

Description

The occurrence of (3a,5a,7a,12a,23S)-Cholestane-3,7,12,23,25-pentol is closely related to a steroid core, a hydroxyl group, an ether linkage in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.

(3a,5a,7a,12a,23S)-Cholestane-3,7,12,23,25-pentol (CAS 137252-15-4) is a high-purity analytical reference standard with the molecular formula C27H48O5 and a molecular weight of 452.67 g/mol.

The molecular framework of (3a,5a,7a,12a,23S)-Cholestane-3,7,12,23,25-pentol (C27H48O5) 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 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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