11-Dehydrocorticosterone CAS 72-23-1
| CAS No. | 72-23-1 |
| Molecular Formula | C21H28O4 |
| Molecular Weight | 344.44 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
The occurrence of 11-Dehydrocorticosterone is closely related to a flavonoid core, a hydroxyl group, an ether linkage in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.
11-Dehydrocorticosterone (CAS 72-23-1) is a high-purity analytical reference standard with the molecular formula C21H28O4 and a molecular weight of 344.44 g/mol.
Based on its molecular formula C21H28O4, 11-Dehydrocorticosterone contains a flavonoid core, a hydroxyl group, an ether linkage; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 344.44 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.
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
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
| Molecular Formula | C21H28O4 |
| Molecular Weight | 344.44 g/mol |
| Appearance | Pale yellow to yellow crystalline powder |
| Purity | >95% |
| 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) | 8.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1957 |
Recommended Standards
- S-(-)-Sulpiride-d3 (CAS 124020-27-5)
- Boc-Leu-Leu-OH (CAS 73401-65-7)
- 10-β-Peroxy 4-Tibolone (CAS 105186-34-3)
- 21-Deoxy Cortisone (CAS 1882-82-2)
- N-(2,5-Difluorophenyl)-3-methylbenzamide (CAS 1002813-62-8)
- 4-Bromo-2-methylthieno[2,3-d][1,2,3]diazaborinin-1(2H)-ol (CAS 66830-32-8)
- 1-Acetyl-4-cyanopiperidine (CAS 25503-91-7)
- CAS 2260669-46-1 (CAS 2260669-46-1)
- tert-Butyl (5-(1-butylpyrrolidin-2-yl)pyridin-2-yl)(cyclopropyl)carbamate (CAS 1352511-06-8)
- 1-(5-(4-Nitrophenyl)furan-2-yl)propan-1-one (CAS 56297-34-8)
- trans-2,3-Dihydro-3-hydroxyeuparin (CAS 64185-57-5)
- tert-Butyl 4-bromo-7-fluoroisoindoline-2-carboxylate (CAS 2134649-54-8)
- 2-Hydroxy-4-methoxy-5-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)benzaldehyde (CAS 1647113-98-1)
- Semaglutide impurity 01 (CAS 1998701-31-7)
Why CATO?
- ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
- 130,000+ catalog items in stock, COA supplied with every batch
- Worldwide shipping with full export documentation (HS code guidance available)
- Technical support: +86 18665070610 / Nicole.chen@cato-chem.com