Ethyl 2-{4-bromo-2-[(1Z)-[(3-chlorophenyl)imino]methyl]-6-methoxyphenoxy}acetate CAS 338750-67-7
| CAS No. | 338750-67-7 |
| Molecular Formula | C18H17BrClNO4 |
| Molecular Weight | 426.69 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
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.
Ethyl 2-{4-bromo-2-[(1Z)-[(3-chlorophenyl)imino]methyl]-6-methoxyphenoxy}acetate (CAS 338750-67-7) is a high-purity analytical reference standard with the molecular formula C18H17BrClNO4 and a molecular weight of 426.69 g/mol.
Based on its molecular formula C18H17BrClNO4, Ethyl 2-{4-bromo-2-[(1Z)-[(3-chlorophenyl)imino]methyl]-6-methoxyphenoxy}acetate contains a flavonoid core, an amide group, a hydroxyl group, an ether linkage, chlorine/bromine substitution; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 426.69 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. 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).
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 | C18H17BrClNO4 |
| Molecular Weight | 426.69 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 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) | 10.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2025 |
| Halogen Content | Cl/Br-containing |
| Nitrogen Atoms | 1 |
Related Ethyl Standards
- 2-(2-Bromo-6-ethoxy-4-formylphenoxy)-N-(3-chloro-4-methylphenyl)acetamide (CAS 552841-34-6)
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- Phenyl 4-bromo-2-((4-chlorophenyl)thio)thiazole-5-carboxylate (CAS 1000574-07-1)
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