Betamethasone Valerate EP Impurity E (Betamethasone 21-Valerate) CAS 2240-28-0
Purity 97%+In StockPharmacopoeial Impurity Standards
| CAS No. | 2240-28-0 |
| Molecular Formula | C27H37FO6 |
| Molecular Weight | 476.58 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
High-purity Betamethasone Valerate EP Impurity E (Betamethasone 21-Valerate) (CAS 2240-28-0) pharmacopoeial impurity standards reference standard. Molecular formula: C27H37FO6. Molecular weight: 476.58 g/mol. Produced by CATO, one of China's leading reference material manufacturers, with COA documentation and global shipping.
Physical & Chemical Properties
| Molecular Formula | C27H37FO6 |
| Molecular Weight | 476.58 g/mol |
| Appearance | Pale yellow to 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 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) | 9.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1957 |
| Halogen Content | F-containing |
Related Betamethasone Standards
- Betamethasone Cyclic 17,21-(Ethyl Orthopropionate) (CAS 1062-09-5)
- Betamethasone Impurity N82 (CAS 123013-29-6)
- Betamethasone Valerate EP Impurity C (CAS 33755-46-3)
- Betamethasone 17A-Valerate (CAS 2152-44-5)
- Betamethasone Acetate EP Impurity C (CAS 330157-05-6)
- Betamethasone Impurity 21 (CAS 154713-07-2)
- Betamethasone impurity 103 (CAS CATO-C4X-1437103)
- Betamethasone Impurity 132 (CAS CATO-C4X-1437132)
Recommended Standards
- Flumetasone Pivalate EP Impurity C (CAS 1926-94-9)
- Dexamethasone Impurity 121 (CAS 2600-31-9)
- 6-alpha-Methyl Prednisolone Aceponate-13C-d3 (CAS CATO-C4X-191971)
- Vonoprazan Impurity 246 (CAS CATO-C4X-1020246)
- Roflumilast impurity 22 (CAS 343927-62-8)
- 4-(4-Ethoxyphenyl)-5-methyloxazol-2(3H)-one (CAS 313684-12-7)
- EDTA,AM, 90% (CAS 162303-59-5)
- Rosuvastatin impurity 245 (CAS 147118-41-0)
- 3-((2-Methoxyethyl)(methyl)amino)indolizine-6-carboxylic acid (CAS 1422143-06-3)
- Glucagon receptor antagonists-2 (CAS 202917-18-8)
Why CATO?
- ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
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- Technical support: +86 13829788188 / jacky.chen@cato-chem.com