Flurbiprofen Impurity 79 CAS CATO-C4X-144479
| CAS No. | CATO-C4X-144479 |
| Molecular Formula | C9H9FN2O3 |
| Molecular Weight | 212.18 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
The molecular framework of Flurbiprofen Impurity 79 (C9H9FN2O3) is characterized by a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage, fluorine substitution. In reversed-phase chromatography, its retention is governed primarily by the protonation state of its nitrogen-containing groups, which provides a practical basis for HPLC-UV/DAD or LC-MS method development. 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).
Flurbiprofen Impurity 79 (CAS CATO-C4X-144479) is a certified pharmaceutical impurity reference standard with the molecular formula C9H9FN2O3 and a molecular weight of 212.18 g/mol.
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 79 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 | C9H9FN2O3 |
| Molecular Weight | 212.18 g/mol |
| Appearance | Off-white to pale yellow crystalline powder. (slight halide-like odor, faint amine-like odor) |
| Purity | >95% |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry, keep tightly closed to prevent evaporation |
| Solubility (reference) | Soluble in methanol, ethanol, DMSO |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 6.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| Halogen Content | F-containing |
| Nitrogen Atoms | 2 |
Related Flurbiprofen Standards
- Flurbiprofen Impurity 90 (CAS 145983-05-7)
- Flurbiprofen Impurity 162 (CAS 861795-19-9)
- Flurbiprofen Impurity 61 (CAS 95037-98-2)
- Flurbiprofen Impurity 57 (CAS 81937-32-8)
- Flurbiprofen EP Impurity D (CAS 42771-79-9)
- Flurbiprofen Impurity 85 (CAS CATO-C4X-144485)
- Flurbiprofen Impurity 44 (CAS CATO-C4X-144444)
- Flurbiprofen EP Impurity E (CAS 137045-30-8)
Recommended Standards
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- Fluconazole Impurity 43 (CAS 41253-21-8)
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- N-nitroso-berotralstat (CAS CATO-C4X-29791)
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- 3-Amino-4-(trifluoromethoxy)phenol (CAS 1261581-61-6)
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- 2-Chloro-4,5,6,7-tetrahydrobenzo[b]thiophen-7-amine (CAS 1556754-57-4)
- 1-Methanesulfonylcyclobutane-1-carbonitrile (CAS 1248918-52-6)
- Fibrinogen Related Peptide (CAS 80755-86-8)
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