Carfilzomib Impurity 16 CAS CATO-C4X-102216
| CAS No. | CATO-C4X-102216 |
| Molecular Formula | C31H42N4O6 |
| Molecular Weight | 566.69 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
The assigned purity is verified by mass-balance and quantitative NMR (qNMR) approaches, with the expanded uncertainty reported at a 95% confidence level (k=2). Batch homogeneity and stability are independently assessed for every lot.
As a process- or degradation-related impurity, Carfilzomib Impurity 16 (CAS CATO-C4X-102216, C31H42N4O6) is essential for impurity profiling, related-substances testing, and forced-degradation studies in pharmaceutical development.
Based on its molecular formula C31H42N4O6, Carfilzomib Impurity 16 contains a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 566.69 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).
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 | C31H42N4O6 |
| Molecular Weight | 566.69 g/mol |
| Appearance | Pale yellow to yellow crystalline powder |
| 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) | 13.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| Nitrogen Atoms | 4 |
Related Carfilzomib Standards
- Carfilzomib Impurity 1 (CAS 875309-92-5)
- Carfilzomib Impurity 15 (CAS CATO-C4X-102215)
- Carfilzomib Impurity 17 (CAS CATO-C4X-102217)
- Carfilzomib Impurity 18 (CAS CATO-C4X-102218)
- Carfilzomib Impurity 19 (CAS CATO-C4X-102219)
- Carfilzomib Impurity 20 (CAS CATO-C4X-102220)
- Carfilzomib Impurity 21 (CAS CATO-C4X-102221)
- Carfilzomib Imputity 56 (CAS 868540-16-3)
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