5β-PREGNAN-3α, 20α-DIOL DIACETATE CAS 1174-69-2
| CAS No. | 1174-69-2 |
| Molecular Formula | C25H40O4 |
| Molecular Weight | 404.58 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.
5β-PREGNAN-3α, 20α-DIOL DIACETATE (CAS 1174-69-2) is a high-purity analytical reference standard with the molecular formula C25H40O4 and a molecular weight of 404.58 g/mol.
Based on its molecular formula C25H40O4, 5β-PREGNAN-3α, 20α-DIOL DIACETATE contains a steroid core, a hydroxyl group, an ether linkage; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 404.58 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. 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), 5β-PREGNAN-3α, 20α-DIOL DIACETATE 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 | C25H40O4 |
| Molecular Weight | 404.58 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 chloroform, dichloromethane, ethyl acetate, DMSO |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 6.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1957 |
Related PREGNAN Standards
- 5α-PREGNAN-3α, 20α-DIOL DIACETATE (CAS 6003-18-5)
- 5β-PREGNAN-3α, 17, 21-TRIOL-11, 20-DIONE 21-ACETATE (CAS 17736-20-8)
- 5β-PREGNAN-3α, 17, 21-TRIOL-11, 20-DIONE 3-ACETATE (CAS 36623-16-2)
- 5β-PREGNAN-3α, 12α-DIOL-20-ONE DIACETATE (CAS 15991-93-2)
- 5α-Pregnan-11β,17α,21-triol-3,20-dione-1,2,4,5-d4 (CAS 252976-11-7)
- 5α-PREGNAN-3β, 11β, 17, 21-TETROL-20-ONE (CAS 651-43-4)
- 5α-Pregnan-17α¸21-diol-3¸11¸20-trione-1¸2¸4¸5-d4 (CAS 1482-51-5)
- 5β-PREGNAN-3α, 17, 21-TRIOL-11, 20-DIONE 3, 21-DIACETATE (CAS 28439-40-9)
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