Cefuroxime impurity 105 CAS CATO-C4X-1245105
| CAS No. | CATO-C4X-1245105 |
| Molecular Formula | C15H18N4O7S |
| Molecular Weight | 398.39 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.
As a process- or degradation-related impurity, Cefuroxime impurity 105 (CAS CATO-C4X-1245105, C15H18N4O7S) is essential for impurity profiling, related-substances testing, and forced-degradation studies in pharmaceutical development.
Based on its molecular formula C15H18N4O7S, Cefuroxime impurity 105 contains a flavonoid core, an amide group, a sulfone group, a hydroxyl group, an ether linkage; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 398.39 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. 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).
As a certified reference material (CRM), Cefuroxime impurity 105 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 | C15H18N4O7S |
| Molecular Weight | 398.39 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°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) | 9.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| Nitrogen Atoms | 4 |
| Sulfur Atoms | 1 |
Related Cefuroxime Standards
- Cefuroxime Impurity 27 (CAS CATO-C4X-124527)
- Cefuroxime sodium GSK ring opening impurity (CAS CATO-C4X-124528)
- Cefuroxime Sodium Impurity 29 (CAS CATO-C4X-124529)
- Cefuroxime Impurity 68 (CAS CATO-C4X-124568)
- Cefuroxime Open-ring Impurity 47 (CAS CATO-C4X-124547)
- Cefuroxime Impurity 46 (CAS CATO-C4X-124546)
- Cefuroxime Impurity 57 (CAS CATO-C4X-124557)
- Cefuroxime Impurity 48 (CAS CATO-C4X-124548)
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