8α,13α,14β-Estra-4,9-diene-3,17-dione CAS 33383-90-3
Purity 97%+In StockPharmaceutical Standards
| CAS No. | 33383-90-3 |
| Molecular Formula | C18H22O2 |
| Molecular Weight | 270.37 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
8α,13α,14β-Estra-4,9-diene-3,17-dione (CAS 33383-90-3) reference standard, produced by CATO (ISO 17034 / CNAS / ANAB accredited). Molecular formula: C18H22O2. Molecular weight: 270.37 g/mol. Trusted by 10,000+ laboratories worldwide for pharmaceutical analysis and QC.
Physical & Chemical Properties
| Molecular Formula | C18H22O2 |
| Molecular Weight | 270.37 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) | 8.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1966 |
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