Ethyl 3-bromo-4-((2-chloro-4-fluorobenzyl)oxy)-5-ethoxybenzoate CAS 1706446-85-6
| CAS No. | 1706446-85-6 |
| Molecular Formula | C18H17BrClFO4 |
| Molecular Weight | 431.68 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Ethyl 3-bromo-4-((2-chloro-4-fluorobenzyl)oxy)-5-ethoxybenzoate (CAS 1706446-85-6) is a high-purity analytical reference standard with the molecular formula C18H17BrClFO4 and a molecular weight of 431.68 g/mol.
Ethyl 3-bromo-4-((2-chloro-4-fluorobenzyl)oxy)-5-ethoxybenzoate (C18H17BrClFO4) contains a flavonoid core, a hydroxyl group, an ether linkage, fluorine/chlorine/bromine substitution. Halogen substitution raises its density and boiling point, its high carbon-to-hydrogen ratio confers good lipid solubility, the carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. 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 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.
As a certified reference material (CRM), Ethyl 3-bromo-4-((2-chloro-4-fluorobenzyl)oxy)-5-ethoxybenzoate 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 | C18H17BrClFO4 |
| Molecular Weight | 431.68 g/mol |
| Appearance | Pale yellow to 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 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) | 9.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1994 |
| Halogen Content | F/Cl/Br-containing |
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