Betamethasone EP Impurity D CAS 52619-05-3
| CAS No. | 52619-05-3 |
| Molecular Formula | C25H33FO7 |
| Molecular Weight | 464.52 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
CATO manufactures Betamethasone EP Impurity D under ISO 17034:2016 accreditation with dual CNAS and ANAB accreditation. Each batch is characterized by orthogonal methods and supplied with a full Certificate of Analysis (COA), ensuring metrological traceability.
CATO supplies Betamethasone EP Impurity D (CAS 52619-05-3), a pharmacopoeial impurity reference standard (molecular formula C25H33FO7, MW 464.52 g/mol) used for the identification and quantification of trace impurities in APIs.
Based on its molecular formula C25H33FO7, Betamethasone EP Impurity D contains a flavonoid core, a hydroxyl group, an ether linkage, fluorine substitution; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 464.52 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.
Recommended for quantitative analysis by HPLC, GC, LC-MS/MS, or GC-MS as an external calibration standard; it can also be used for spiked-recovery experiments, LOD/LOQ determination, and LC-MS/MS multiple-reaction-monitoring (MRM) calibration.
Physical & Chemical Properties
| Molecular Formula | C25H33FO7 |
| Molecular Weight | 464.52 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.) | 1972 |
| Halogen Content | F-containing |
Related Betamethasone Standards
- Betamethasone Valerate EP Impurity I (CAS 2802-10-0)
- Betamethasone Impurity N25 (CAS 5534-14-5)
- Betamethasone impurity 103 (CAS CATO-C4X-1437103)
- Betamethasone Impurity 132 (CAS CATO-C4X-1437132)
- Betamethasone Impurity 135 (CAS CATO-C4X-1437135)
- Betamethasone impurity 45 (CAS 1215899-29-8)
- Betamethasone impurity 55 (CAS 1202002-02-5)
- Betamethasone impurity 56 (CAS 1202002-00-3)
Recommended Standards
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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 18665070610 / Nicole.chen@cato-chem.com