Clobetasone Butyrate EP Impurity F CAS 25120-98-3
Purity ≥95%In StockPharmacopoeial Impurity Standards
| CAS No. | 25120-98-3 |
| Molecular Formula | C26H32ClFO5 |
| Molecular Weight | 478.98 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
Clobetasone Butyrate EP Impurity F (CAS 25120-98-3) is a high-purity pharmacopoeial impurity standards reference standard from CATO, an ISO 17034 accredited reference material producer. Molecular formula: C26H32ClFO5. Molecular weight: 478.98 g/mol. Each batch is supplied with a Certificate of Analysis (COA).
Physical & Chemical Properties
| Molecular Formula | C26H32ClFO5 |
| Molecular Weight | 478.98 g/mol |
| Appearance | Pale yellow to yellow crystalline powder. (slight halide-like odor, low volatility) |
| Purity | ≥95% |
| Storage | Store at room temperature, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in methanol, acetonitrile, DMSO, water (slightly soluble) |
| 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) | 10.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1964 |
| Halogen Content | F/Cl-containing |
Related Clobetasone Standards
- Clobetasone Butyrate EP Impurity I (CAS 639817-47-3)
- Clobetasone 17-Butyrate (CAS 25122-57-0)
- Clobetasone butyrate EP Impurity E (CAS 639817-48-4)
- Clobetasone butyrate EP Impurity C (CAS 639817-49-5)
- Clobetasone Butyrate EP Impurity H (CAS 25122-56-9)
- Clobetasone butyrate EP Impurity G (CAS CATO-C4X-35394)
- Clobetasone Butyrate Impurity 7 (CAS CATO-C4X-35397)
- Clobetasone Butyrate EP Impurity A (CAS 54063-32-0)
Recommended Standards
- 2-(3-Bromo-4-iodophenoxy)-1,3-difluoro-5-(trifluoromethyl)benzene (CAS 2244087-65-6)
- 1-{5-[(4-chlorophenyl)sulfanyl]-4-phenyl-1,3-thiazol-2-yl}-4-(4-fluorophenyl)-1H-pyrazol-5-amine (CAS 956393-87-6)
- 2-(3-Bromo-2-iodophenoxy)-1,3-difluoro-5-(trifluoromethyl)benzene (CAS 2244088-68-2)
- Venetoclax Impurity 98 (CAS CATO-C4X-249598)
- Finerenone Impurity 288 (CAS CATO-C4X-2880288)
- 3-(Prop-2-yn-1-yl)pyridine (CAS 944896-94-0)
- Ethyl 3-chloro-4-(((trifluoromethyl)sulfonyl)oxy)benzoate (CAS 939050-79-0)
- N-(2-chloro-5-(trifluoromethyl)phenyl)-2-((4-ethyl-5-(2-methoxyphenyl)-4H-1,2,4-triazol-3-yl)thio)acetamide (CAS 333423-33-9)
- Ephedrine Impurity N1 (CAS 17608-59-2)
- Angiotensin III Antipeptide (CAS 133605-55-7)
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