(17α)-13-Ethyl-17-hydroxy-18,19-dinorpregna-5(10),9(11)-dien-20-yn-3-one CAS 4412-59-3
Purity 97%+In StockPharmaceutical Standards
| CAS No. | 4412-59-3 |
| Molecular Formula | C21H26O2 |
| Molecular Weight | 310.43 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
CATO supplies (17α)-13-Ethyl-17-hydroxy-18,19-dinorpregna-5(10),9(11)-dien-20-yn-3-one (CAS 4412-59-3), a pharmaceutical standards reference standard manufactured under ISO 17034 accreditation. Molecular formula: C21H26O2. Molecular weight: 310.43 g/mol. Batch-specific COA and technical support are available on request.
Physical & Chemical Properties
| Molecular Formula | C21H26O2 |
| Molecular Weight | 310.43 g/mol |
| Appearance | Pale yellow to yellow crystalline powder |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light |
| 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) | 9.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1958 |
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- 3-Oxo-3-(trimethyl-1h-pyrazol-4-yl)propanenitrile (CAS 158387-00-9)
- 3-Bromo-2-chloro-5-(trifluoromethoxy)aniline (CAS 1805577-14-3)
- Peptide Impurity 04 (CAS 2913424-91-4)
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 13829788188 / jacky.chen@cato-chem.com