(17Z)-20-Hydroxy-3,11-dioxopregna-1,4,17(20)-trien-21-al CAS 118724-35-9
Purity 97%+In StockPharmaceutical Standards
| CAS No. | 118724-35-9 |
| Molecular Formula | C21H24O4 |
| Molecular Weight | 340.41 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
(17Z)-20-Hydroxy-3,11-dioxopregna-1,4,17(20)-trien-21-al (CAS 118724-35-9) reference standard, produced by CATO (ISO 17034 / CNAS / ANAB accredited). Molecular formula: C21H24O4. Molecular weight: 340.41 g/mol. Trusted by 10,000+ laboratories worldwide for pharmaceutical analysis and QC.
Physical & Chemical Properties
| Molecular Formula | C21H24O4 |
| Molecular Weight | 340.41 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) | 10.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1990 |
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