(4β,5β,17α)- 4,5-Epoxy-13-ethyl-17-hydroxy-18,19-dinorpregn-20-yn-3-one CAS 51267-67-5
Purity 97%+In StockPharmaceutical Standards
| CAS No. | 51267-67-5 |
| Molecular Formula | C21H28O3 |
| Molecular Weight | 328.45 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
High-purity (4β,5β,17α)- 4,5-Epoxy-13-ethyl-17-hydroxy-18,19-dinorpregn-20-yn-3-one (CAS 51267-67-5) pharmaceutical standards reference standard. Molecular formula: C21H28O3. Molecular weight: 328.45 g/mol. Produced by CATO, one of China's leading reference material manufacturers, with COA documentation and global shipping.
Physical & Chemical Properties
| Molecular Formula | C21H28O3 |
| Molecular Weight | 328.45 g/mol |
| Appearance | Pale yellow to 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) | 8.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1971 |
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Recommended Standards
- (4S,4′S)-2,2′-(1,4-Phenylene)bis[4-(1,1-dimethylethyl)-4,5-dihydrooxazole] (CAS 906672-95-5)
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- (4S,4′S)-2,2′-(1,3-Phenylene)bis[4,5-dihydro-4-(2-methylpropyl)oxazole] (CAS 265127-64-8)
- 1-(1-methylpiperidin-4-yl)-4,5,6,7-tetrahydro-1H-1,2,3-benzotriazole-6-carboxylic acid dihydrochloride (CAS 2059954-37-7)
- 2-[[4-[1-(Methyl-11C)-4-(4-pyridinyl)-1H-pyrazol-3-yl]phenoxy]methyl]quinoline (CAS 1292799-56-4)
- 4-(Trifluoromethyl)-1H-pyrrolo[2,3-c]pyridine (CAS 1211521-88-8)
- ((Perfluorophenyl)methyl)hydrazine (CAS 163432-96-0)
- rac-(2R,6R)-6-methylpiperidine-2-carboxylic acid hydrochloride (CAS 123878-70-6)
- 2-Methyl-3-(6-methylpicolinamido)propanoic acid (CAS 1251318-02-1)
- Neuropeptide EI (human, mouse, rat) (CAS 125934-45-4)
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