Ethyl 2-(5-bromo-3-cyano-2-nitrophenyl)acetate CAS 1804403-64-2
| CAS No. | 1804403-64-2 |
| Molecular Formula | C11H9BrN2O4 |
| Molecular Weight | 313.10 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-(5-bromo-3-cyano-2-nitrophenyl)acetate (CAS 1804403-64-2) is a high-purity analytical reference standard with the molecular formula C11H9BrN2O4 and a molecular weight of 313.10 g/mol.
Ethyl 2-(5-bromo-3-cyano-2-nitrophenyl)acetate (C11H9BrN2O4) contains a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage, bromine substitution. It is notably hygroscopic, 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).
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 | C11H9BrN2O4 |
| Molecular Weight | 313.10 g/mol |
| Appearance | Pale yellow to yellow crystalline powder. (slight halide-like odor) |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in methanol, ethanol, DMSO |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 8.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1995 |
| Halogen Content | Br-containing |
| Nitrogen Atoms | 2 |
Related Ethyl Standards
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- 6-Bromo-7-ethoxy-2-oxo-2H-chromene-3-carboxylic acid (CAS 1352524-40-3)
- Ethyl 2-(6-bromo-3-cyano-2-nitrophenyl)acetate (CAS 1805103-27-8)
- Ethyl 2-(2-bromo-5-cyano-3-nitrophenyl)acetate (CAS 1805521-49-6)
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