Ceftizoxime Open-ring Dimer Impurity 55 CAS CATO-C4X-179355
| CAS No. | CATO-C4X-179355 |
| Molecular Formula | C26H28N10O11S4 |
| Molecular Weight | 784.82 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
As a certified reference material (CRM), Ceftizoxime Open-ring Dimer Impurity 55 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.
As a process- or degradation-related impurity, Ceftizoxime Open-ring Dimer Impurity 55 (CAS CATO-C4X-179355, C26H28N10O11S4) is essential for impurity profiling, related-substances testing, and forced-degradation studies in pharmaceutical development.
Owing to a nitrogen-containing heterocyclic scaffold, an amide group, a sulfone group, a hydroxyl group, an ether linkage, Ceftizoxime Open-ring Dimer Impurity 55 is typically pale yellow to yellow amorphous powder. Its solid-state physicochemical attributes — including a molecular weight of 784.82 g/mol — guide the selection of appropriate sample preparation and analytical techniques. 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.
Physical & Chemical Properties
| Molecular Formula | C26H28N10O11S4 |
| Molecular Weight | 784.82 g/mol |
| Purity | >90% |
| 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) | 18.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| Nitrogen Atoms | 10 |
| Sulfur Atoms | 4 |
Related Ceftizoxime Standards
- Ceftizoxime Impurity 36 (CAS CATO-C4X-179336)
- Ceftizoxime Impurity 84 (CAS CATO-C4X-179384)
- Ceftizoxime impurity 97 (CAS 186957-49-3)
- Ceftizoxime Dimer Impurity 38 (CAS CATO-C4X-179338)
- Ceftizoxime Open-ring decarboxylation Dimer Impurity 57 (CAS CATO-C4X-179357)
- Ceftizoxime Impurity 91 (CAS CATO-C4X-179391)
- Ceftizoxime Open-ring decarboxylation Dimer Impurity 56 (CAS CATO-C4X-179356)
- Ceftizoxime Alapivoxil (CAS 135821-54-4)
Recommended Standards
- Liothyronine EP Impurity A-13C9-15N (CAS 1431868-11-9)
- 5-O-DMT-2-O-methylinosine 3-CE phosphoramidite (CAS 128219-85-2)
- Ac-Trp-Glu-His-Asp-AMC (CAS 189275-74-9)
- [Dicyclohexyl[2′,4′,6′-tris(1-methylethyl)[1,1′-biphenyl]-2-yl]phosphine](4,5-dihydro-2-propyl-3-furanyl)gold (CAS 1426438-09-6)
- Flunarizine impurity 56 (CAS CATO-C4X-135756)
- Vildagliptin Impurity 5 (CAS 1789703-37-2(free base))
- Demiditraz Impurity 2 (CAS 944268-65-9)
- 4-Nitrophenethyl (9-((2R,4S,5R)-4-hydroxy-5-(hydroxymethyl)tetrahydrofuran-2-yl)-9H-purin-6-yl)carbamate (CAS 88091-69-4)
- 4,4-dimethylpentan-2-amine (CAS 64379-29-9)
- 6-Chloro-4-ethoxy-2-methyl-5-morpholinopyridazin-3(2H)-one (CAS 61308-27-8)
- 4-Butoxy-2,6-dimethylbenzaldehyde (CAS 88174-30-5)
- 1-Ethanesulfonylpyrrolidin-3-one (CAS 1936626-41-3)
- (S)-tert-butyl 3-((2-(4-amino-1,2,5-oxadiazol-3-yl)-4-chloro-1-ethyl-1H-imidazo[4,5-c]pyridin-7-yloxy)methyl)piperidine-1-carboxylate (CAS 937174-74-8)
- Semaglutide Impurity 133 (CAS CATO-C4X-2226133)
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