Revefenacin Impurity 35 CAS 171722-92-2
| CAS No. | 171722-92-2 |
| Molecular Formula | C18H20N2O2 |
| Molecular Weight | 296.36 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
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.
As a process- or degradation-related impurity, Revefenacin Impurity 35 (CAS 171722-92-2, C18H20N2O2) is essential for impurity profiling, related-substances testing, and forced-degradation studies in pharmaceutical development.
Based on its molecular formula C18H20N2O2, Revefenacin Impurity 35 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 296.36 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).
As a certified reference material (CRM), Revefenacin Impurity 35 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.
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 |
| CAS Registry Year (est.) | 2006 |
| Nitrogen Atoms | 2 |
Related Revefenacin Standards
- Revefenacin impurity 110 (CAS CATO-C4X-2031110)
- Revefenacin Impurity 47 (CAS CATO-C4X-203147)
- Revefenacin Impurity 58 (CAS CATO-C4X-203158)
- 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
- N-Nitroso Ebastine EP Impurity C (CAS CATO-C4X-202923)
- Fenbufen Impurity 5 (CAS CATO-C4X-19395)
- N-Nitroso Fexofenadine EP Impurity E (CAS 1038-06-8)
- Vibegron Impurity 12 (CAS CATO-C4X-237612)
- Ceritinib Impurity 46 (CAS CATO-C4X-104846)
- Cinacalcet Impurity 17 (CAS 49681-33-6)
- Olmesartan Impurity 64 (CAS 51802-42-7)
- 1,3,7-Trimethyl-8-(piperazin-1-yl)-3,7-dihydro-1h-purine-2,6-dione (CAS 50693-74-8)
- 4-Bromo-2-fluorobenzaldehyde (CAS 57848-46-1)
- Methyl 5-methyltetrahydrofuran-2-carboxylate (CAS 61834-18-2)
- 3-Azabicyclo[3.1.0]hexane Hydrochloride (CAS 73799-64-1)
- 2-Chloro-5-[(4-ethylpiperazin-1-yl)sulfonyl]benzoic acid (CAS 263897-19-4)
- tert-Butyl 4-(aminomethyl)-4-[2-(trifluoromethyl)phenyl]piperidine-1-carboxylate (CAS 1779125-76-6)
- Semaglutide impurity 99 (CAS CATO-C4X-222699)
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