Fexofenadine Impurity 10 CAS CATO-C4X-179410
| CAS No. | CATO-C4X-179410 |
| Molecular Formula | C14H20O4 |
| Molecular Weight | 252.31 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
As a certified reference material (CRM), Fexofenadine Impurity 10 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.
As a process- or degradation-related impurity, Fexofenadine Impurity 10 (CAS CATO-C4X-179410, C14H20O4) is essential for impurity profiling, related-substances testing, and forced-degradation studies in pharmaceutical development.
Based on its molecular formula C14H20O4, Fexofenadine Impurity 10 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 252.31 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).
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 | C14H20O4 |
| Molecular Weight | 252.31 g/mol |
| Appearance | Off-white to pale yellow crystalline powder |
| Purity | 97%+ |
| Storage | Store in a cool place (≤25°C), keep sealed and dry |
| Solubility (reference) | Soluble in chloroform, dichloromethane, ethyl acetate, DMSO |
| Stability | May oxidize slowly on prolonged air exposure; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 5.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
Related Fexofenadine Standards
- Fexofenadine Impurity 23 (CAS 169280-25-5)
- Fexofenadine Impurity 18 (CAS 880088-78-8)
- Fexofenadine Impurity 13 (CAS 88783-30-6)
- Fexofenadine EP Impurity E (CAS 115-46-8)
- Fexofenadine Impurity 29 (CAS CATO-C4X-179429)
- Fexofenadine Impurity 2 (CAS 169280-21-1)
- Fexofenadine Impurity 21 (CAS 162096-54-0)
- Fexofenadine Impurity 22 (CAS 343255-26-5)
Recommended Standards
- Atenolol EP Impurity I (CAS 1797116-92-7)
- Trimetazidine Impurity 11 (CAS CATO-C4X-180311)
- Bisoprolol Impurity 100 (CAS CATO-C4X-1247100)
- Rasagiline Impurity 32 (CAS CATO-C4X-191332)
- Eplerenone EP Impurity F Sodium salt (CAS 95716-98-6（free base）)
- Peramivir Impurity 39 (CAS CATO-C4X-183339)
- Mirogabalin Impurity 24 (Mixture of Enantiomers) (CAS CATO-C4X-292424)
- 4-iminocyclohexa-2,5-dienone (CAS 3009-34-5)
- 2-(4-Bromo-2-fluorophenyl)hexahydro-1H-isoindole-1,3(2H)-dione (CAS 61330-04-9)
- 2,2-Difluoro-2-(p-tolyl)ethanol (CAS 1783961-43-2)
- 1-(4-Methylbenzyl)-1H-indole-2,3-dione 3-[N-(4-chlorophenyl)hydrazone] (CAS 303984-94-3)
- Pentoxifylline Impurity 20 (CAS 2035-08-7)
- Dextromethorphan Impurity 6 (CAS 1329834-01-6)
- Des-His(1)-Semaglutide (CAS CATO-C4X-2226216)
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