1-(4-Bromophenyl)-2-phenylethane-1,2-dione CAS 39229-12-4
| CAS No. | 39229-12-4 |
| Molecular Formula | C14H9BrO2 |
| Molecular Weight | 289.12 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
1-(4-Bromophenyl)-2-phenylethane-1,2-dione (CAS 39229-12-4) is a high-purity analytical reference standard with the molecular formula C14H9BrO2 and a molecular weight of 289.12 g/mol.
The molecular framework of 1-(4-Bromophenyl)-2-phenylethane-1,2-dione (C14H9BrO2) is characterized by a carboxylic acid group, a hydroxyl group, an ether linkage, bromine substitution, a polycyclic aromatic 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 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).
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.
CATO manufactures 1-(4-Bromophenyl)-2-phenylethane-1,2-dione under ISO 17034:2016 accreditation with dual CNAS and ANAB accreditation. Each batch is characterized by orthogonal methods and supplied with a full Certificate of Analysis (COA), ensuring metrological traceability.
Physical & Chemical Properties
| Molecular Formula | C14H9BrO2 |
| Molecular Weight | 289.12 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) | 10.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1968 |
| Halogen Content | Br-containing |
Related Bromophenyl Standards
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Recommended Standards
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- 7-methyl-6-azaspiro[3.4]octane hydrochloride (CAS 1803586-35-7)
- 2-Chloro-4-fluoro-2-morpholinomethyl benzophenone (CAS 898750-89-5)
- 5-Ethyl-1-((2-oxopyridin-1(2H)-yl)methyl)-1H-pyrazole-3-carboxamide (CAS 1263213-13-3)
- 1-(2-Bromo-6-chlorophenyl)ethan-1-one (CAS 1261438-38-3)
- 5-Bromo-N-(1-morpholinopropan-2-yl)thiophene-2-carboxamide (CAS 1258728-71-0)
- 4-Amino-5-(5-chloro-2-fluorophenyl)-4H-1,2,4-triazole-3-thiol (CAS 1152520-62-1)
- Insulin Degludec Impurity 2 (CAS CATO-C4X-21572)
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