2-Bromo-1-(5-phenylisoxazol-3-yl)ethan-1-one CAS 14731-15-8
| CAS No. | 14731-15-8 |
| Molecular Formula | C11H8BrNO2 |
| Molecular Weight | 266.09 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.
CATO supplies 2-Bromo-1-(5-phenylisoxazol-3-yl)ethan-1-one (CAS 14731-15-8), a certified reference material (molecular formula C11H8BrNO2, MW 266.09 g/mol) for analytical method development and quality control.
The molecular framework of 2-Bromo-1-(5-phenylisoxazol-3-yl)ethan-1-one (C11H8BrNO2) is characterized by a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage, bromine substitution. 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 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 | C11H8BrNO2 |
| Molecular Weight | 266.09 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 tightly closed to prevent evaporation |
| 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) | 8.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1961 |
| Halogen Content | Br-containing |
| Nitrogen Atoms | 1 |
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Recommended Standards
- 2-Bromo-1-(3-phenylisoxazol-5-yl)ethan-1-one (CAS 14731-14-7)
- 1-(4-Bromo-3-methylphenyl)-1H-1,2,3-triazole-4-carbaldehyde (CAS 1489751-99-6)
- 3-((4,6-Dichloro-1,3,5-triazin-2-yl)amino)benzonitrile (CAS 146887-21-0)
- 3-Bromo-5-(1h-pyrrol-1-yl)benzoic acid (CAS 1502169-97-2)
- 6-(2-methoxyethoxy)-1H-indole-3-sulfonic acid (CAS 2361020-55-3)
- Ethyl 2,3-difluoro-5-methoxy-4-methylbenzoate (CAS 2586125-76-8)
- (2,3,4,5-Tetrafluorophenyl)boronic acid (CAS 179923-32-1)
- 4-(2-Ethoxybenzoyl)-8-methyl-1-oxa-4-azaspiro[4.5]decane-3-carboxylic acid (CAS 1326814-79-2)
- tert-Butyl (4-hydroxynaphthalen-1-yl)carbamate (CAS 285984-22-7)
- 4-(2,5-Dichlorophenyl)piperazine-2,6-dione (CAS 1267379-66-7)
- N-Isobutylpteridin-4-amine (CAS 1710703-02-8)
- Tert-butyl thiomorpholine-3-carboxylate 1,1-dioxide (CAS 1909309-07-4)
- 4-{2-[(4-methyl-4h-1,2,4-triazol-3-yl)sulfanyl]acetamido}benzoic acid (CAS 351006-15-0)
- Semaglutide impurity 59 (CAS CATO-C4X-222659)
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