Vazegepant Impurity 22 CAS CATO-C4X-320022
| CAS No. | CATO-C4X-320022 |
| Molecular Formula | C15H16N2O3 |
| Molecular Weight | 272.30 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
Vazegepant Impurity 22 (CAS CATO-C4X-320022) is a certified pharmaceutical impurity reference standard with the molecular formula C15H16N2O3 and a molecular weight of 272.30 g/mol.
Based on its molecular formula C15H16N2O3, Vazegepant Impurity 22 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 272.30 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.
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.
Physical & Chemical Properties
| Molecular Formula | C15H16N2O3 |
| Molecular Weight | 272.30 g/mol |
| Appearance | Pale yellow to yellow crystalline powder |
| 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 | 2 |
Related Vazegepant Standards
- Vazegepant Impurity 30 (CAS CATO-C4X-320030)
- Vazegepant Impurity 25 (CAS CATO-C4X-320025)
- Vazegepant Impurity 1 (CAS CATO-C4X-32001)
- Vazegepant impurity 33 (CAS 1061710-38-0)
- Vazegepant Impurity 40 (CAS CATO-C4X-320040)
- Vazegepant Impurity 32 (CAS CATO-C4X-320032)
- Vazegepant Impurity 29 (CAS 416867-23-7)
- Vazegepant Impurity 24 (CAS 2935939-83-4)
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- Deoxyshikonin (CAS 43043-74-9)
- Berberine Impurity 4 (CAS CATO-C4X-21994)
- Pilocarpine Impurity 16 (CAS CATO-C4X-240116)
- Bilastine Impurity 38 (CAS 883106-63-6)
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