6-Bromo-1-[(1S)-1-[[[(1,1-dimethylethyl)dimethylsilyl]oxy]methyl]-2-methylpropyl]-7-fluoro-1,4-dihydro-4-oxo-3-quinolinecarboxylic Acid Ethyl Ester CAS 934161-52-1
| CAS No. | 934161-52-1 |
| Molecular Formula | C23H33BrFNO4Si |
| Molecular Weight | 514.50 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
6-Bromo-1-[(1S)-1-[[[(1,1-dimethylethyl)dimethylsilyl]oxy]methyl]-2-methylpropyl]-7-fluoro-1,4-dihydro-4-oxo-3-quinolinecarboxylic Acid Ethyl Ester (C23H33BrFNO4Si) contains a flavonoid core, an amide group, a hydroxyl group, an ether linkage, fluorine/bromine 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 aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
6-Bromo-1-[(1S)-1-[[[(1,1-dimethylethyl)dimethylsilyl]oxy]methyl]-2-methylpropyl]-7-fluoro-1,4-dihydro-4-oxo-3-quinolinecarboxylic Acid Ethyl Ester (CAS 934161-52-1) is a high-purity analytical reference standard with the molecular formula C23H33BrFNO4Si and a molecular weight of 514.50 g/mol.
This reference standard is suitable for quantitative analysis on major chromatographic platforms including HPLC, GC, LC-MS/MS, and GC-MS, serving as an external calibration standard or a system suitability test reference material.
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 | C23H33BrFNO4Si |
| Molecular Weight | 514.50 g/mol |
| Appearance | Off-white to pale yellow crystalline powder. (slight halide-like odor, low volatility) |
| Purity | 97%+ |
| 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) | 7.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1987 |
| Halogen Content | F/Br-containing |
| Nitrogen Atoms | 1 |
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