Flurbiprofen Impurity 118 CAS CATO-C4X-1444118
| CAS No. | CATO-C4X-1444118 |
| Molecular Formula | C21H25FO7 |
| Molecular Weight | 408.42 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
Owing to a flavonoid core, a hydroxyl group, an ether linkage, fluorine substitution, Flurbiprofen Impurity 118 is typically pale yellow to yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 408.42 g/mol — guide the selection of appropriate sample preparation and analytical techniques. 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 process- or degradation-related impurity, Flurbiprofen Impurity 118 (CAS CATO-C4X-1444118, C21H25FO7) is essential for impurity profiling, related-substances testing, and forced-degradation studies in pharmaceutical development.
Recommended for quantitative analysis by HPLC, GC, LC-MS/MS, or GC-MS as an external calibration standard; it can also be used for spiked-recovery experiments, LOD/LOQ determination, and LC-MS/MS multiple-reaction-monitoring (MRM) calibration.
The assigned purity is verified by mass-balance and quantitative NMR (qNMR) approaches, with the expanded uncertainty reported at a 95% confidence level (k=2). Batch homogeneity and stability are independently assessed for every lot.
Physical & Chemical Properties
| Molecular Formula | C21H25FO7 |
| Molecular Weight | 408.42 g/mol |
| Appearance | Pale yellow to yellow crystalline powder. (slight halide-like odor) |
| Purity | 95% |
| Storage | Store at room temperature, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in methanol, acetonitrile, DMSO, water (slightly soluble) |
| 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 114 (CAS CATO-C4X-1444114)
- Flurbiprofen Impurity 65 (CAS CATO-C4X-144465)
- Flurbiprofen Impurity 117 (CAS CATO-C4X-1444117)
- Flurbiprofen Impurity 69 (CAS CATO-C4X-144469)
- 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
- Oseltamivir Impurity 155 (CAS CATO-C4X-1720155)
- 4-Methyl-3,5-diphenyl-1-((3-(trifluoromethyl)benzyl)oxy)-1H-pyrazole (CAS 400084-14-2)
- Upadacitinib Impurity 36 (CAS CATO-C4X-240536)
- (S)-2-methyl-4-((3-(4-(trifluoromethyl)phenyl)-9H-carbazol-9-yl)methyl)-4,5-dihydrooxazole (CAS 2357080-12-5)
- Metaxalone Impurity 2 (CAS CATO-C4X-30052)
- Dapagliflozin Impurity 174 (CAS CATO-C4X-1138174)
- Dienogest EP Impurity G (CAS 86153-38-0)
- 4-(Dimethoxymethyl)-2-(pyridin-2-yl)pyrimidine (CAS 156825-33-1)
- Ethyl 4-formyl-1-phenyl-1h-pyrazole-3-carboxylate (CAS 1156510-01-8)
- 6-Nitro-3a,4,5,9b-tetrahydro-3H-cyclopenta[c]quinoline-4-carboxylic acid (CAS 359418-29-4)
- ({4-chloro-5-phenylthieno[2,3-d]pyrimidin-2-yl}methyl)dimethylamine (CAS 1183987-96-3)
- Desonide Impurity 11 (CAS 25092-32-4)
- 3-Cyclopropoxy-2-fluoro-6-isopropoxypyridine (CAS 1243465-48-6)
- Liraglutide(10-22)TFA Salt (CAS CATO-C4X-199211)
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