Betaxolol EP Impurity C CAS 63659-17-6
| CAS No. | 63659-17-6 |
| Molecular Formula | C15H20O3 |
| Molecular Weight | 248.32 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, Betaxolol EP Impurity C (CAS 63659-17-6, C15H20O3) is essential for impurity profiling, related-substances testing, and forced-degradation studies in pharmaceutical development.
Based on its molecular formula C15H20O3, Betaxolol EP Impurity C contains a carboxylic acid group, a hydroxyl group, an ether linkage, an aromatic ring system; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 248.32 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), Betaxolol EP Impurity C 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 | C15H20O3 |
| Molecular Weight | 248.32 g/mol |
| Appearance | Off-white to pale yellow crystalline powder |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in chloroform, dichloromethane, ethyl acetate, DMSO |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 6.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1975 |
Related Betaxolol Standards
- Betaxolol Impurity 12 (CAS CATO-C4X-155912)
- Betaxolol Impurity 19 (CAS CATO-C4X-155919)
- Betaxolol Impurity 9 (CAS 131564-69-7)
- Betaxolol EP Impurity A (CAS 67193-95-7)
- Betaxolol Impurity 16 (CAS CATO-C4X-155916)
- Betaxolol Impurity 20 (CAS CATO-C4X-155920)
- Betaxolol Impurity 14 (CAS CATO-C4X-155914)
- Betaxolol Impurity 18 (CAS CATO-C4X-155918)
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