Delta-9,11-methylprednisolone Acetate CAS 93239-37-3
| CAS No. | 93239-37-3 |
| Molecular Formula | C24H30O5 |
| Molecular Weight | 398.49 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Delta-9,11-methylprednisolone Acetate (CAS 93239-37-3) is a high-purity analytical reference standard with the molecular formula C24H30O5 and a molecular weight of 398.49 g/mol.
Delta-9,11-methylprednisolone Acetate (C24H30O5) contains a flavonoid core, 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 presence of an aromatic ring or conjugated system gives the compound characteristic absorption bands in the UV-Vis region, making it well suited to UV or diode-array detection (DAD).
This reference standard is suitable for quantitative analysis on major chromatographic platforms including HPLC, GC, LC-MS/MS, and GC-MS, serving as an external calibration standard or a system suitability test reference material.
CATO manufactures Delta-9,11-methylprednisolone Acetate 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 | C24H30O5 |
| Molecular Weight | 398.49 g/mol |
| Appearance | Pale yellow to yellow crystalline powder |
| 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 |
| Degree of Unsaturation (DBE) | 10.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1983 |
Related Delta Standards
- Methylprednisolone Acetate EP Impurity F (CAS CATO-C4X-19198)
- Methylprednisolone Impurity 54 (CAS CATO-C4X-191954)
- Methylprednisolone Acetate EP Impurity H (E-isomer) (CAS CATO-C4X-191946)
- Methylprednisolone Acetate EP Impurity H (CAS CATO-C4X-191960)
- Methylprednisolone Acetate EP Impurity K (CAS 115321-98-7)
- Methylprednisolone Impurity 47 (CAS CATO-C4X-191947)
- Methylprednisolone Acetate EP Impurity J (CAS 1048031-82-8)
- Methylprednisolone EP Impurity J (CAS 53-36-1)
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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