Fluticasone Impurity 51 CAS CATO-C4X-165051
| CAS No. | CATO-C4X-165051 |
| Molecular Formula | C23H28F2O6 |
| Molecular Weight | 438.46 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
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.
Fluticasone Impurity 51 (CAS CATO-C4X-165051) is a certified pharmaceutical impurity reference standard with the molecular formula C23H28F2O6 and a molecular weight of 438.46 g/mol.
Based on its molecular formula C23H28F2O6, Fluticasone Impurity 51 contains a flavonoid core, a hydroxyl group, an ether linkage, fluorine substitution; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 438.46 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
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 | C23H28F2O6 |
| Molecular Weight | 438.46 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 Fluticasone Standards
- Fluticasone Related Compound B (CAS 219719-95-6)
- Fluticasone Impurity 79 (CAS CATO-C4X-165079)
- Fluticasone Impurity 84 (CAS CATO-C4X-165084)
- Fluticasone Impurity 83 (CAS CATO-C4X-165083)
- Fluticasone Impurity 96 (CAS CATO-C4X-165096)
- Fluticasone Impurity 54 (CAS 4571-51-1)
- Fluticasone (CAS 90566-53-3)
- Fluticasone Impurity 111 (CAS 785806-92-0)
Recommended Standards
- N,1-dimethyl-3,5-dinitro-6-(4-(phenylsulfonyl)piperazin-1-yl)-1,4-dihydropyridin-2-amine (CAS 339020-84-7)
- Difluoroprednisolone-21-Acetate (CAS 52-70-0)
- 4-[1-(Benzenesulfonyl)ethyl]-5-ethyl-1-{[3-(trifluoromethyl)phenyl]methyl}-2,3-dihydro-1H-imidazol-2-one (CAS 439096-16-9)
- Fluocinolone Acetonide EP Impurity B (CAS 65751-34-0)
- Bezafibrate Impurity 10 (CAS 41859-56-7)
- Febuxostat Impurity 40 (CAS CATO-C4X-116240)
- AZD-9291 Impurity 13 (CAS CATO-C4X-112713)
- tert-Butyl 4-amino-4-(tetrahydro-2H-pyran-4-yl)pentanoate (CAS 2715050-70-5)
- (R)-2-Amino-3-(3,4-difluorophenyl)propanoic acid (CAS 249648-08-6)
- 3,5-Dimethyl-4-(propan-2-yloxy)benzaldehyde (CAS 169806-12-6)
- Borane-<I>N</I>,<I>N</I>-diethylaniline complex (CAS 13289-97-9)
- 3-Aminopyrrolidine-3-carboxylic acid hydrochloride (CAS 39739-38-3)
- 5-(4,4-Difluoropiperidin-1-yl)-2-nitrobenzaldehyde (CAS 1774896-50-2)
- (Ser(PO?H?)3??ยท???)-Tau Peptide (379-408) trifluoroacetate salt (CAS 2022956-60-9)
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