Prednisolone Impurity 51 CAS 1428883-48-0
| CAS No. | 1428883-48-0 |
| Molecular Formula | C27H36O9 |
| Molecular Weight | 504.57 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
This reference standard supports related-substances testing and method development in line with ICH Q3A/Q3B guidance on impurity control, and is suitable for system suitability testing and forced-degradation studies.
Prednisolone Impurity 51 (CAS 1428883-48-0) is a certified pharmaceutical impurity reference standard with the molecular formula C27H36O9 and a molecular weight of 504.57 g/mol.
The molecular framework of Prednisolone Impurity 51 (C27H36O9) is characterized by a carboxylic acid group, a hydroxyl group, an ether linkage, a polycyclic aromatic system. In reversed-phase chromatography, its retention is governed primarily by the polarity and ionization state of its functional groups, which provides a practical basis for HPLC-UV/DAD or LC-MS method development. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
CATO manufactures Prednisolone Impurity 51 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.
Physical & Chemical Properties
| Molecular Formula | C27H36O9 |
| Molecular Weight | 504.57 g/mol |
| Appearance | Pale yellow to yellow crystalline powder |
| 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 |
| Degree of Unsaturation (DBE) | 10.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1991 |
Related Prednisolone Standards
- Prednisolone Impurity 33 (CAS CATO-C4X-173733)
- Prednisolone Impurity 35 (CAS CATO-C4X-173735)
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- Prednisolone 21-Acetate 17-Valerate (CAS 72064-79-0)
- Prednisolone Impurity 42 (CAS 85847-53-6)
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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