Flurbiprofen Impurity 69 CAS CATO-C4X-144469
| CAS No. | CATO-C4X-144469 |
| Molecular Formula | C24H20F2O4 |
| Molecular Weight | 410.41 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
Flurbiprofen Impurity 69 (CAS CATO-C4X-144469) is a certified pharmaceutical impurity reference standard with the molecular formula C24H20F2O4 and a molecular weight of 410.41 g/mol.
Owing to a flavonoid core, a hydroxyl group, an ether linkage, fluorine substitution, Flurbiprofen Impurity 69 is typically pale yellow to yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 410.41 g/mol — guide the selection of appropriate sample preparation and analytical techniques. The high carbon-to-hydrogen ratio imparts good lipophilicity, allowing liquid-liquid extraction with non-polar solvents such as n-hexane or ethyl acetate.
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 69 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 | C24H20F2O4 |
| Molecular Weight | 410.41 g/mol |
| Appearance | Pale yellow to yellow crystalline powder. (slight halide-like odor, low volatility) |
| Purity | >95% |
| Storage | Store at room temperature, 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; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 14.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| Halogen Content | F-containing |
Related Flurbiprofen Standards
- Flurbiprofen Impurity 114 (CAS CATO-C4X-1444114)
- Flurbiprofen Impurity 118 (CAS CATO-C4X-1444118)
- Flurbiprofen Impurity 65 (CAS CATO-C4X-144465)
- Flurbiprofen Impurity 117 (CAS CATO-C4X-1444117)
- Flurbiprofen Impurity 168 (CAS CATO-C4X-1444168)
- Flurbiprofen Impurity 71 (CAS CATO-C4X-144471)
- Flurbiprofen Acyl-beta-D-glucuronide (Mixture of Diastereomers) (CAS 91683-37-3)
- Flurbiprofen Impurity 63 (CAS CATO-C4X-144463)
Recommended Standards
- Celecoxib Impurity 18 (CAS 2247197-67-5)
- Ethametsulfuron-Methyl (CAS 97780-06-8)
- N-allyl-2-(6-oxo-1-(3-(trifluoromethyl)benzyl)-1,6-dihydropyridine-3-carbonyl)hydrazine-1-carbothioamide (CAS 477852-93-0)
- Nicosulfuron (CAS 111991-09-4)
- Ozenoxacin Impurity 3 (CAS CATO-C4X-27963)
- Dopamine Impurity 25 (CAS 1124-39-6)
- Dapagliflozin Impurity 212 (2S,3R,4R,5S) (CAS CATO-C4X-1138212)
- tert-Butyl 3-(((6-bromopyridin-2-yl)oxy)methyl)piperidine-1-carboxylate (CAS 1065484-40-3)
- (S)-N-((3-([3,4'-Bipyridin]-6-yl)-2-oxooxazolidin-5-yl)methyl)acetamide (CAS 225644-82-6)
- N’-(4-acetylphenyl)-N,N-diethylurea (CAS 881937-62-8)
- 5-(azidomethyl)-4-methyl-2-(propan-2-yl)-1,3-oxazole (CAS 1803589-64-1)
- N-benzyl-4-methyl-1-benzenecarbothioamide (CAS 68055-34-5)
- 1-(Methoxymethyl)cyclobutane-1-sulfonamide (CAS 2138149-00-3)
- Semaglutide impurity 257 (CAS CATO-C4X-2226257)
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