Cefotaxime Impurity 63 CAS CATO-C4X-120163
| CAS No. | CATO-C4X-120163 |
| Molecular Formula | C29H34ClN5O9S2 |
| Molecular Weight | 696.19 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
Structurally, Cefotaxime Impurity 63 (C29H34ClN5O9S2) contains a nitrogen-containing heterocyclic scaffold, an amide group, a sulfone group, a hydroxyl group, an ether linkage, chlorine substitution. The molecule exhibits a degree of unsaturation (DBE) of 15.0, corresponding to approximately 15 ring(s) or double-bond equivalent(s). With a molecular weight of 696.19 g/mol, it falls into the high-molecular-weight range. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.
As a process- or degradation-related impurity, Cefotaxime Impurity 63 (CAS CATO-C4X-120163, C29H34ClN5O9S2) 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.
As a certified reference material (CRM), Cefotaxime Impurity 63 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 | C29H34ClN5O9S2 |
| Molecular Weight | 696.19 g/mol |
| Purity | >95% |
| 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; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 15.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 5 |
| Sulfur Atoms | 2 |
Related Cefotaxime Standards
- Cefotaxime Impurity 35 (CAS CATO-C4X-120135)
- Cefotaxime Impurity 70 (CAS CATO-C4X-120170)
- Cefotaxime Impurity 67 (CAS CATO-C4X-120167)
- Cefotaxime Impurity 96 (CAS CATO-C4X-120196)
- Cefotaxime Impurity 38 (CAS CATO-C4X-120138)
- Cefotaxime EP Impurity G (CAS 2489535-06-8)
- Cefotaxime Impurity 71 (CAS CATO-C4X-120171)
- Cefotaxime Impurity 72 (CAS CATO-C4X-120172)
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