Revefenacin impurity 94 CAS CATO-C4X-203194
| CAS No. | CATO-C4X-203194 |
| Molecular Formula | C8H6Cl2O2 |
| Molecular Weight | 205.04 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.
Revefenacin impurity 94 (CAS CATO-C4X-203194) is a certified pharmaceutical impurity reference standard with the molecular formula C8H6Cl2O2 and a molecular weight of 205.04 g/mol.
Revefenacin impurity 94 (C8H6Cl2O2) contains a carboxylic acid group, a hydroxyl group, an ether linkage, chlorine substitution, an aromatic ring system. Halogen substitution raises its density and boiling point, the carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. 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 94 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 | C8H6Cl2O2 |
| Molecular Weight | 205.04 g/mol |
| Appearance | Off-white to pale yellow crystalline powder. (slight halide-like odor, low volatility) |
| Purity | 97%+ |
| Storage | Store at room temperature, keep tightly closed to prevent evaporation |
| Solubility (reference) | Soluble in methanol, acetonitrile, DMSO, water (slightly soluble) |
| Stability | May oxidize slowly on prolonged air exposure; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 5.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| Halogen Content | Cl-containing |
Related Revefenacin Standards
- Revefenacin Impurity 113 (CAS 1379371-59-1)
- Revefenacin impurity 97 (CAS 774238-89-0)
- Revefenacin impurity 90 (CAS CATO-C4X-203190)
- Revefenacin impurity 92 (CAS CATO-C4X-203192)
- Revefenacin Impurity 3 (CAS 50443-60-2)
- Revefenacin impurity 87 (CAS CATO-C4X-203187)
- Revefenacin impurity 105 (CAS CATO-C4X-2031105)
- Revefenacin impurity 75 (CAS CATO-C4X-203175)
Recommended Standards
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- Atrasentan Impurity 33 (CAS 1059040-13-9)
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