Clobetasol Propionate EP Impurity D CAS 25120-99-4
Purity 97%+In StockPharmacopoeial Impurity Standards
| CAS No. | 25120-99-4 |
| Molecular Formula | C25H34ClFO5 |
| Molecular Weight | 468.99 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
Clobetasol Propionate EP Impurity D (CAS 25120-99-4) is a high-purity pharmacopoeial impurity standards reference standard from CATO, an ISO 17034 accredited reference material producer. Molecular formula: C25H34ClFO5. Molecular weight: 468.99 g/mol. Each batch is supplied with a Certificate of Analysis (COA).
Physical & Chemical Properties
| Molecular Formula | C25H34ClFO5 |
| Molecular Weight | 468.99 g/mol |
| Appearance | Pale yellow to yellow crystalline powder. (slight halide-like odor, low volatility) |
| Purity | 97%+ |
| 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) | 8.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1964 |
| Halogen Content | F/Cl-containing |
Related Clobetasol Standards
- Clobetasol Propionate EP Impurity C (CAS 25122-52-5)
- Clobetasol Propionate (CAS 25122-46-7)
- Clobetasol 17-Propionate-d5 (CAS CATO-CCAD302397)
- Clobetasol butyrate (CAS 25122-47-8)
- Clobetasol Propionate Impurity (21-Chloro-16β-methyl-17-(1-oxopropoxy)pregna-1,4-diene-3,20-dione) (CAS 95796-50-2)
- Clobetasol Propionate EP Impurity J (CAS 1486466-31-2)
- Clobetasol Propionate Impurity 19 (CAS CATO-C4X-159219)
- Clobetasol Propionate EP Impurity A (CAS 5534-13-4)
Recommended Standards
- (3-Amino-4-((4-chlorophenyl)sulfonyl)-5-(phenylamino)thiophen-2-yl)(phenyl)methanone (CAS 866844-40-8)
- 2-((2-Chlorobenzyl)thio)-3-(4-methoxyphenyl)-5,6,7,8-tetrahydrobenzo[4,5]thieno[2,3-d]pyrimidin-4(3H)-one (CAS 477329-22-9)
- Mometasone Furoate EP Impurity A (CAS 83880-65-3)
- Lansoprazole Impurity 17 (CAS 253345-80-1)
- Semaglutide impurity 85 (CAS CATO-C4X-222685)
- 5-Methoxy-1,3-dimethylisoquinoline (CAS 89221-27-2)
- 13981-79-8 Nickel, isotope of mass 58 Nickel-58 58Ni (CAS 13981-79-8)
- 7-Chloro-1-heptene (CAS 929-21-5)
- (R)-tert-Butyl 3-((4-methylpyrimidin-2-yl)amino)pyrrolidine-1-carboxylate (CAS 1264036-88-5)
- Epidermal Growth Factor Receptor Peptide (985-996) (CAS 96249-43-3)
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