Cefodizime Impurity 4 CAS CATO-C4X-18064
| CAS No. | CATO-C4X-18064 |
| Molecular Formula | C20H20N6O8S4 |
| Molecular Weight | 600.67 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
As a process- or degradation-related impurity, Cefodizime Impurity 4 (CAS CATO-C4X-18064, C20H20N6O8S4) is essential for impurity profiling, related-substances testing, and forced-degradation studies in pharmaceutical development.
The molecular framework of Cefodizime Impurity 4 (C20H20N6O8S4) is characterized by a flavonoid core, an amide group, a sulfone group, a hydroxyl group, an ether linkage. In reversed-phase chromatography, its retention is governed primarily by the protonation state of its nitrogen-containing 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).
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.
As a certified reference material (CRM), Cefodizime Impurity 4 meets the metrological traceability requirements of ISO/IEC 17025 laboratories. Batch-to-batch consistency is monitored via control charts to guarantee comparable assigned values across lots.
Physical & Chemical Properties
| Molecular Formula | C20H20N6O8S4 |
| Molecular Weight | 600.67 g/mol |
| Purity | 97%+ |
| Storage | Store in a cool place (≤25°C), protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in DMSO, DMF, methanol |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 14.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| Nitrogen Atoms | 6 |
| Sulfur Atoms | 4 |
Related Cefodizime Standards
- Cefodizime Impurity 23 (CAS CATO-C4X-180623)
- Cefodizime Oxide Impurity 1 (CAS CATO-C4X-18068)
- Cefodizime Impurity 13 (CAS CATO-C4X-180613)
- Cefodizime Impurity 14 (CAS CATO-C4X-180614)
- Cefodizime Impurity 24 (CAS CATO-C4X-180624)
- Cefodizime Impurity 5 (CAS 120533-30-4)
- Cefodizime Impurity 6 (CAS 97180-26-2)
- Cefodizime Impurity 7 (CAS CATO-C4X-18067)
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