Revefenacin Impurity 58 CAS CATO-C4X-203158
| CAS No. | CATO-C4X-203158 |
| Molecular Formula | C18H20N2O2 |
| Molecular Weight | 296.36 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, Revefenacin Impurity 58 (CAS CATO-C4X-203158, C18H20N2O2) is essential for impurity profiling, related-substances testing, and forced-degradation studies in pharmaceutical development.
Revefenacin Impurity 58 (C18H20N2O2) contains a steroid core, an amide group, a hydroxyl group, an ether linkage. It is notably hygroscopic, its high carbon-to-hydrogen ratio confers good lipid solubility, the carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. 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 | C18H20N2O2 |
| Molecular Weight | 296.36 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 | 2 |
Related Revefenacin Standards
- Revefenacin impurity 110 (CAS CATO-C4X-2031110)
- Revefenacin Impurity 35 (CAS 171722-92-2)
- Revefenacin Impurity 47 (CAS CATO-C4X-203147)
- Revefenacin Impurity 69 (CAS CATO-C4X-203169)
- Revefenacin impurity 85 (CAS 82942-81-2)
- Revefenacin impurity 84 (CAS 1801988-33-9)
- Revefenacin Impurity 39 (CAS 1284980-54-6)
- Revefenacin Impurity 38 (CAS 733783-20-5)
Recommended Standards
- Vibegron Impurity 12 (CAS CATO-C4X-237612)
- Daprodustat impurity 2 (CAS CATO-C4X-24072)
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- Phenylbutazone Impurity 4 (CAS 30923-77-4)
- Hydroxychloroquine impurity 82 (CAS CATO-C4X-183582)
- Pomalidomide Impurity 27 HCl (CAS CATO-C4X-135427)
- Dapagliflozin Impurity 50 (CAS CATO-C4X-113850)
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- 5-Bromo-4-(difluoromethyl)-6-methoxypyrimidin-2-amine (CAS 2827059-50-5)
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