(E,E)-Ceftizoxime Impurity 67 CAS CATO-C4X-179367
| CAS No. | CATO-C4X-179367 |
| Molecular Formula | C26H26N10O10S4 |
| Molecular Weight | 766.81 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
Based on its molecular formula C26H26N10O10S4, (E,E)-Ceftizoxime Impurity 67 contains a nitrogen-containing heterocyclic scaffold, 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 766.81 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 process- or degradation-related impurity, (E,E)-Ceftizoxime Impurity 67 (CAS CATO-C4X-179367, C26H26N10O10S4) is essential for impurity profiling, related-substances testing, and forced-degradation studies in pharmaceutical development.
Recommended for quantitative analysis by HPLC, GC, LC-MS/MS, or GC-MS as an external calibration standard; it can also be used for spiked-recovery experiments, LOD/LOQ determination, and LC-MS/MS multiple-reaction-monitoring (MRM) calibration.
As a certified reference material (CRM), (E,E)-Ceftizoxime Impurity 67 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 | C26H26N10O10S4 |
| Molecular Weight | 766.81 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 |
| Degree of Unsaturation (DBE) | 19.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| Nitrogen Atoms | 10 |
| Sulfur Atoms | 4 |
Recommended Standards
- Ceftizoxime Impurity 36 (CAS CATO-C4X-179336)
- Ceftizoxime Impurity 84 (CAS CATO-C4X-179384)
- Fmoc-Val-Cit-PAB-PNP (CAS 863971-53-3)
- Ceftizoxime impurity 97 (CAS 186957-49-3)
- Relugolix Impurity 113 (CAS CATO-C4X-2429113)
- Avibactam Impurity 65 (CAS CATO-C4X-134865)
- Finerenone Impurity 23 (CAS CATO-C4X-288023)
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