1-(5-Bromo-7-ethylbenzofuran-2-yl)-2-chloroethanone CAS 18775-40-1
| CAS No. | 18775-40-1 |
| Molecular Formula | C12H10BrClO2 |
| Molecular Weight | 301.56 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
1-(5-Bromo-7-ethylbenzofuran-2-yl)-2-chloroethanone (CAS 18775-40-1), molecular formula C12H10BrClO2 and molecular weight 301.56 g/mol, is a CATO reference standard with documented purity and traceability.
The molecular framework of 1-(5-Bromo-7-ethylbenzofuran-2-yl)-2-chloroethanone (C12H10BrClO2) is characterized by a carboxylic acid group, a hydroxyl group, an ether linkage, chlorine/bromine substitution, an aromatic ring system. In reversed-phase chromatography, its retention is governed primarily by its high hydrophobicity (logP), which provides a practical basis for HPLC-UV/DAD or LC-MS method development. 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 | C12H10BrClO2 |
| Molecular Weight | 301.56 g/mol |
| Appearance | Off-white to pale yellow crystalline powder. (slight halide-like odor, low volatility) |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light |
| 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) | 7.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1962 |
| Halogen Content | Cl/Br-containing |
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