Flumetasone Impurity 17 CAS CATO-C4X-191017
| CAS No. | CATO-C4X-191017 |
| Molecular Formula | C22H26F2O6 |
| Molecular Weight | 424.44 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
Compared with other compounds in its class, the molecular weight of 424.44 g/mol gives Flumetasone Impurity 17 distinctive chromatographic separation conditions and mass-spectrometry parameter settings.
As a process- or degradation-related impurity, Flumetasone Impurity 17 (CAS CATO-C4X-191017, C22H26F2O6) is essential for impurity profiling, related-substances testing, and forced-degradation studies in pharmaceutical development.
Flumetasone Impurity 17 (C22H26F2O6) contains a flavonoid core, a hydroxyl group, an ether linkage, fluorine substitution. Halogen substitution raises its density and boiling point, the carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. 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).
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 | C22H26F2O6 |
| Molecular Weight | 424.44 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 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 Flumetasone Standards
- Flumetasone Impurity 16 (CAS CATO-C4X-191016)
- Flumetasone Impurity 10 (CAS 382631-11-0)
- Flumetasone Impurity 19 (CAS CATO-C4X-191019)
- Flumetasone Impurity 9 (CAS 2541-37-9)
- Flumetasone Impurity 15 (CAS CATO-C4X-191015)
- Flumetasone Impurity 14 (CAS 3873-19-6)
- Flumetasone Impurity 18 (CAS CATO-C4X-191018)
- Flumetasone Impurity 7 (CAS 61633-73-6)
Recommended Standards
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