Prednisolone Phosphate - API Standards CAS 302-25-0
| CAS No. | 302-25-0 |
| Molecular Formula | C21H29O8P |
| Molecular Weight | 440.42 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Compared with other compounds in its class, the molecular weight of 440.42 g/mol gives Prednisolone Phosphate - API Standards distinctive chromatographic separation conditions and mass-spectrometry parameter settings.
Prednisolone Phosphate - API Standards (CAS 302-25-0) is a high-purity analytical reference standard with the molecular formula C21H29O8P and a molecular weight of 440.42 g/mol.
Prednisolone Phosphate - API Standards (C21H29O8P) contains a flavonoid core, a phosphate ester group, a hydroxyl group, an ether linkage. The carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
The assigned purity is verified by mass-balance and quantitative NMR (qNMR) approaches, with the expanded uncertainty reported at a 95% confidence level (k=2). Batch homogeneity and stability are independently assessed for every lot.
Physical & Chemical Properties
| Molecular Formula | C21H29O8P |
| Molecular Weight | 440.42 g/mol |
| Appearance | Off-white to pale 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) | 7.5 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1957 |
Related Prednisolone Standards
- Prednisolone Impurity 20 (CAS CATO-C4X-173720)
- Prednisolone Impurity 21 (CAS CATO-C4X-173721)
- Prednisolone Impurity 23 (CAS CATO-C4X-173723)
- Prednisolone Impurity 24 (CAS CATO-C4X-173724)
- Prednisolone impurity 56 (CAS CATO-C4X-173756)
- Prednisolone 21-Methanesulfonate (CAS 35410-28-7)
- Prednisolone EP Impurity A Hydrochloride (CAS 393782-60-0)
- Prednisolone Impurity 31 (CAS 6677-19-6)
Recommended Standards
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