(5a,22R,23R,24S)-22,23-Dihydroxyergostan-3-one CAS 164034-48-4
| CAS No. | 164034-48-4 |
| Molecular Formula | C28H48O3 |
| Molecular Weight | 432.68 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
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.
(5a,22R,23R,24S)-22,23-Dihydroxyergostan-3-one (CAS 164034-48-4) is a high-purity analytical reference standard with the molecular formula C28H48O3 and a molecular weight of 432.68 g/mol.
(5a,22R,23R,24S)-22,23-Dihydroxyergostan-3-one (C28H48O3) contains a steroid core, a hydroxyl group, an ether linkage. Its high carbon-to-hydrogen ratio confers good lipid solubility, the carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. The high carbon-to-hydrogen ratio imparts good lipophilicity, allowing liquid-liquid extraction with non-polar solvents such as n-hexane or ethyl acetate.
As a certified reference material (CRM), (5a,22R,23R,24S)-22,23-Dihydroxyergostan-3-one 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
| Molecular Formula | C28H48O3 |
| Molecular Weight | 432.68 g/mol |
| Appearance | Off-white to pale yellow crystalline powder |
| Purity | 97%+ |
| Storage | Store at room temperature, keep sealed and dry |
| Solubility (reference) | Soluble in chloroform, dichloromethane, ethyl acetate, DMSO |
| Stability | May oxidize slowly on prolonged air exposure |
| Degree of Unsaturation (DBE) | 5.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2003 |
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