Phentolamine Impurity 26 CAS CATO-C4X-224726
| CAS No. | CATO-C4X-224726 |
| Molecular Formula | C17H19N3O2 |
| Molecular Weight | 297.35 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
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 process- or degradation-related impurity, Phentolamine Impurity 26 (CAS CATO-C4X-224726, C17H19N3O2) is essential for impurity profiling, related-substances testing, and forced-degradation studies in pharmaceutical development.
Based on its molecular formula C17H19N3O2, Phentolamine Impurity 26 contains a steroid core, an amide group, a hydroxyl group, an ether linkage; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 297.35 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
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 | C17H19N3O2 |
| Molecular Weight | 297.35 g/mol |
| Appearance | Pale yellow to yellow crystalline powder |
| Purity | ≥95% |
| 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) | 10.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| Nitrogen Atoms | 3 |
Related Phentolamine Standards
- Phentolamine Impurity 27 (CAS CATO-C4X-224727)
- Phentolamine Impurity 15 (CAS CATO-C4X-224715)
- Phentolamine Impurity 8 (CAS 2767988-83-8)
- Phentolamine Impurity 21 (CAS CATO-C4X-224721)
- Phentolamine Impurity 16 (CAS CATO-C4X-224716)
- Phentolamine Impurity 19 (CAS CATO-C4X-224719)
- Phentolamine (CAS 50-60-2)
- Phentolamine Impurity 24 (CAS CATO-C4X-224724)
Recommended Standards
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- 5-Bromo-3-methyl-2-(3-(trifluoromethyl)-3H-diazirin-3-yl)pyridine (CAS 2231673-13-3)
- 6-(1,4-Diazepan-1-yl)-7h-purine (CAS 502133-47-3)
- Semaglutide impurity 89 (CAS CATO-C4X-222689)
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