Ethyl 4-bromo-3-chlorophenylacetate CAS 1261791-56-3
| CAS No. | 1261791-56-3 |
| Molecular Formula | C10H10BrClO2 |
| Molecular Weight | 277.54 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
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.
Ethyl 4-bromo-3-chlorophenylacetate (CAS 1261791-56-3) is a high-purity analytical reference standard with the molecular formula C10H10BrClO2 and a molecular weight of 277.54 g/mol.
Based on its molecular formula C10H10BrClO2, Ethyl 4-bromo-3-chlorophenylacetate contains a carboxylic acid group, a hydroxyl group, an ether linkage, chlorine/bromine substitution, an aromatic ring system; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 277.54 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).
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
Physical & Chemical Properties
| Molecular Formula | C10H10BrClO2 |
| Molecular Weight | 277.54 g/mol |
| Appearance | Off-white to pale yellow crystalline powder. (slight halide-like odor, low volatility) |
| Purity | 97%+ |
| Storage | Store at room temperature, keep tightly closed to prevent evaporation |
| Solubility (reference) | Soluble in chloroform, dichloromethane, ethyl acetate, DMSO |
| Stability | May oxidize slowly on prolonged air exposure; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 5.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1990 |
| Halogen Content | Cl/Br-containing |
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Recommended Standards
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- tert-Butyl 2-(5-methyl-6-morpholinopyridin-3-yl)pyrrolidine-1-carboxylate (CAS 1352530-45-0)
- [1-(1-Oxa-7-azaspiro[3.5]nonan-7-ylmethyl)cyclopropyl]methanol (CAS 2882104-20-1)
- 3,3-Diethyl-1-vinyl-2-pyrrolidinone (CAS 1186202-47-0)
- 3-amino-N-(3-chloro-2-methylphenyl)propanamide (CAS 938517-08-9)
- 2-Chloro-3-(2-oxoindolin-3-yl)benzohydrazide (CAS 82973-13-5)
- CAS 2773415-46-4 (CAS 2773415-46-4)
- [1-(3-Fluoro-benzenesulfonyl)-piperidin-4-yl]-acetic acid (CAS 1171916-94-1)
- Insulin Degludec Impurity 2 (CAS CATO-C4X-21572)
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