Methylprednisolone Impurity 73 CAS CATO-C4X-191973
| CAS No. | CATO-C4X-191973 |
| Molecular Formula | C25H32O8 |
| Molecular Weight | 460.52 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
The molecular framework of Methylprednisolone Impurity 73 (C25H32O8) is characterized by a flavonoid core, a hydroxyl group, an ether linkage. 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).
As a process- or degradation-related impurity, Methylprednisolone Impurity 73 (CAS CATO-C4X-191973, C25H32O8) is essential for impurity profiling, related-substances testing, and forced-degradation studies in pharmaceutical development.
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.
CATO manufactures Methylprednisolone Impurity 73 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 | C25H32O8 |
| Molecular Weight | 460.52 g/mol |
| Appearance | Pale yellow to yellow crystalline powder |
| Purity | >95% |
| 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 |
Related Methylprednisolone Standards
- Methylprednisolone Hydrogen Succinate EP Impurity E (CAS 2920-86-7)
- Methylprednisolone Impurity 63 (CAS 7415-42-1)
- Methylprednisolone impurity 97 (CAS CATO-C4X-191997)
- Methylprednisolone Impurity 53 (CAS CATO-C4X-191953)
- Methylprednisolone Impurity 68 (CAS 86413-24-3)
- Methylprednisolone Impurity 91 (CAS 124106-96-3)
- Methylprednisolone impurity 83 (CAS CATO-C4X-191983)
- Methylprednisolone Impurity 1 (CAS CATO-C4X-19191)
Recommended Standards
- Vibegron Impurity 10 (CAS CATO-C4X-237610)
- Vibegron Impurity 16 (CAS CATO-C4X-237616)
- Hydrocortisone Impurity 61 (CAS CATO-C4X-140161)
- Finerenone Impurity 131 (CAS CATO-C4X-2880131)
- Cefixime polymer impurity 2 (CAS CATO-C4X-113959)
- Tenofovir Alafenamide Impurity 25 (CAS CATO-C4X-179725)
- Etomidate Impurity 1 (CAS 844658-92-0)
- 3-(2-Furylmethyl)-2-thioxo-1,3-thiazolidin-4-one (CAS 4703-95-1)
- 3-(4-Acetyl-phenyl)-2-amino-propionic acid (CAS 22888-49-9)
- 4-Chloro-3-methoxy-1,2-thiazole-5-carbaldehyde (CAS 2089257-62-3)
- 4'-(4'-Ethyl-[1,1'-bi(cyclohexan)]-4-yl)-3,4-difluoro-1,1'-biphenyl (CAS 139195-63-4)
- tert-Butyl (1-(2-hydroxypropyl)piperidin-4-yl)carbamate (CAS 917344-75-3)
- (Z)-1-Bromobut-1-ene (CAS 31849-78-2)
- Tau Peptide (274-288) trifluoroacetate salt (CAS 330456-39-8)
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