Betamethasone Impurity 57 CAS 1257544-85-6
Purity 97%+In StockPharmacopoeial Impurity Standards
| CAS No. | 1257544-85-6 |
| Molecular Formula | C22H27FO5 |
| Molecular Weight | 390.45 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
Betamethasone Impurity 57 (CAS 1257544-85-6) reference standard, produced by CATO (ISO 17034 / CNAS / ANAB accredited). Molecular formula: C22H27FO5. Molecular weight: 390.45 g/mol. Trusted by 10,000+ laboratories worldwide for pharmaceutical analysis and QC.
Physical & Chemical Properties
| Molecular Formula | C22H27FO5 |
| Molecular Weight | 390.45 g/mol |
| Appearance | Pale yellow to yellow crystalline powder. (slight halide-like odor) |
| Purity | 97%+ |
| Storage | Store at 2-8°C, 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.) | 1990 |
| Halogen Content | F-containing |
Related Betamethasone Standards
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Recommended Standards
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- 1-(Azetidin-3-yl)-4-fluoropiperidine (CAS 194427-25-3)
- Methyl 5-bromo-3-oxo-3,4-dihydro-2H-benzo[b][1,4]oxazine-7-carboxylate (CAS 214848-39-2)
- 1,4,8-Tribromodibenzo[b,d]furan (CAS 617707-45-6)
- Tirzepatide Impurity 35 (CAS CATO-C4X-324035)
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