Prednisolone impurity 67 CAS 20380-17-0
Purity 97%+In StockPharmacopoeial Impurity Standards
| CAS No. | 20380-17-0 |
| Molecular Formula | C21H29BrO3 |
| Molecular Weight | 409.36 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
Prednisolone impurity 67 (CAS 20380-17-0) is a pharmacopoeial impurity standards certified reference material from CATO. Molecular formula: C21H29BrO3. Molecular weight: 409.36 g/mol. ISO 17034 accredited production ensures traceable purity and reliable analytical results.
Physical & Chemical Properties
| Molecular Formula | C21H29BrO3 |
| Molecular Weight | 409.36 g/mol |
| Appearance | Off-white to pale yellow crystalline powder. (slight halide-like odor) |
| Purity | 97%+ |
| Storage | Store at room temperature, 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; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 7.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1962 |
| Halogen Content | Br-containing |
Related Prednisolone Standards
- Prednisolone impurity 66 (CAS 137759-50-3)
- Prednisolone impurity 68 (CAS CATO-C4X-173768)
- Prednisolone Impurity 42 (CAS 3597-59-9)
- Prednisolone Acetate (CAS 52-21-1)
- Prednisolone 17-Acetate (CAS 52628-64-5)
- Prednisolone Impurity 61 (CAS 50718-16-6)
- Prednisolone Impurity 41 (CAS CATO-C4X-173741)
- Prednisolone impurity 60 (CAS CATO-C4X-173760)
Recommended Standards
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- 1-(tert-butoxycarbonyl)-3,5-dimethyl-1h-pyrazol-4-ylboronic acid 1-(tert-butoxycarbonyl)pyrazole-4-boronic acid 1-boc-3,5-dimethylpyrazole-4-boronic acid 1-boc-4-pyrazoleboronic acid 1-tert-Butoxycarbonyl-1H-pyrazole-4-boronic acid 1h-pyrazole-4-boronic acid, n-boc protected 947533-31-5 n-boc-1h-pyrazole-4-boronic acid (CAS 947533-31-5)
- 2,3-Diamino-5-(2-hydroxyethyl)-6-methylpyrimidin-4(3H)-one (CAS 95095-45-7)
- Semaglutide impurity 93 (CAS CATO-C4X-222693)
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