Flurbiprofen Impurity 105 CAS CATO-C4X-1444105
| CAS No. | CATO-C4X-1444105 |
| Molecular Formula | C18H19FO2 |
| Molecular Weight | 286.34 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
Flurbiprofen Impurity 105 (CAS CATO-C4X-1444105) is a certified pharmaceutical impurity reference standard with the molecular formula C18H19FO2 and a molecular weight of 286.34 g/mol.
Based on its molecular formula C18H19FO2, Flurbiprofen Impurity 105 contains a steroid core, a hydroxyl group, an ether linkage, fluorine substitution; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 286.34 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.
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 certified reference material (CRM), Flurbiprofen Impurity 105 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 | C18H19FO2 |
| Molecular Weight | 286.34 g/mol |
| Appearance | Pale yellow to yellow crystalline powder. (slight halide-like odor) |
| Purity | >95% |
| Storage | Store at 2-8°C, protect from light, keep tightly closed to prevent evaporation |
| Solubility (reference) | Soluble in chloroform, dichloromethane, ethyl acetate, DMSO |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 9.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| Halogen Content | F-containing |
Related Flurbiprofen Standards
- Flurbiprofen Impurity 43 (CAS CATO-C4X-144443)
- Flurbiprofen Impurity N16 (CAS 252846-89-2)
- Flurbiprofen Impurity 58 (CAS CATO-C4X-144458)
- Flurbiprofen Impurity 55 (CAS 42771-82-4)
- Flurbiprofen Impurity 27 (CAS CATO-C4X-144427)
- Flurbiprofen Impurity 17 (CAS 78543-08-5)
- Flurbiprofen Impurity 22 (CAS 1346604-78-1)
- Flurbiprofen Impurity 111 (CAS CATO-C4X-1444111)
Recommended Standards
- Linezolid Impurity 92 (CAS 872991-73-6)
- (2,2-dimethyl-1,3-dioxolan-4-yl)methyl 4-methylbenzenesulfonate (CAS 7305-59-1)
- Landiolol Impurity 89 (CAS CATO-C4X-262189)
- 2,2-dimethyl-1,3-dioxan-5-yl 4-methylbenzenesulfonate (CAS 1572045-90-9)
- Meglumine Impurity 12 (CAS CATO-C4X-214212)
- Amisulpride Impurity 42 (CAS 31925-29-8)
- Atorvastatin Impurity 105 (CAS CATO-C4X-1132105)
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