(5α)-Pregnane-3,20-dione Cyclic 20-(1,2-Ethanediyl Acetal) CAS 1452-23-9
| CAS No. | 1452-23-9 |
| Molecular Formula | C23H36O3 |
| Molecular Weight | 360.53 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
(5α)-Pregnane-3,20-dione Cyclic 20-(1,2-Ethanediyl Acetal) (C23H36O3) 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 aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
CATO supplies (5α)-Pregnane-3,20-dione Cyclic 20-(1,2-Ethanediyl Acetal) (CAS 1452-23-9), a certified reference material (molecular formula C23H36O3, MW 360.53 g/mol) for analytical method development and quality control.
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.
As a certified reference material (CRM), (5α)-Pregnane-3,20-dione Cyclic 20-(1,2-Ethanediyl Acetal) 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 | C23H36O3 |
| Molecular Weight | 360.53 g/mol |
| Appearance | Off-white to pale yellow crystalline powder |
| Purity | 97%+ |
| Storage | Store at 2-8°C, 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 Pregnane Standards
- (3α,5β)-Pregnane-3,20,21-triol (CAS 2041-77-2)
- 5α-Pregnane-3α,17α-diol-20-one (CAS 6890-65-9)
- 5a-Pregnane-3a,20a-diol (CAS 566-58-5)
- 5α-Pregnane-3β,20(S)-diol (CAS 566-56-3)
- 5β-Pregnane-3β,20(S)-diol (CAS 80-90-0)
- 5Beta-Pregnane-3Alpha,20Alpha-Diol (CAS 80-92-2)
- 5α-Pregnane-3-one-20α-ol (CAS 516-59-6)
- Pregnane-3,20-dione (CAS 7350-00-7)
Recommended Standards
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