| CAS No. | 15991-93-2 |
| Molecular Formula | C25H38O5 |
| Molecular Weight | 418.57 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Compared with other compounds in its class, the molecular weight of 418.57 g/mol gives 5β-PREGNAN-3α, 12α-DIOL-20-ONE DIACETATE distinctive chromatographic separation conditions and mass-spectrometry parameter settings.
CATO supplies 5β-PREGNAN-3α, 12α-DIOL-20-ONE DIACETATE (CAS 15991-93-2), a certified reference material (molecular formula C25H38O5, MW 418.57 g/mol) for analytical method development and quality control.
5β-PREGNAN-3α, 12α-DIOL-20-ONE DIACETATE (C25H38O5) contains a flavonoid core, a hydroxyl group, an ether linkage. The carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
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.
CATO manufactures 5β-PREGNAN-3α, 12α-DIOL-20-ONE DIACETATE under ISO 17034:2016 accreditation with dual CNAS and ANAB accreditation. Each batch is characterized by orthogonal methods and supplied with a full Certificate of Analysis (COA), ensuring metrological traceability.
| Molecular Formula | C25H38O5 |
| Molecular Weight | 418.57 g/mol |
| Appearance | Off-white to pale yellow crystalline powder |
| Purity | 97%+ |
| Storage | Store at room temperature, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in methanol, acetonitrile, DMSO, water (slightly soluble) |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 7.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1961 |