2-Bromo-1-(3-(3,4-dichlorophenyl)isoxazol-5-yl)ethan-1-one CAS 175277-38-0
| CAS No. | 175277-38-0 |
| Molecular Formula | C11H6BrCl2NO2 |
| Molecular Weight | 334.98 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Compared with other compounds in its class, the molecular weight of 334.98 g/mol gives 2-Bromo-1-(3-(3,4-dichlorophenyl)isoxazol-5-yl)ethan-1-one distinctive chromatographic separation conditions and mass-spectrometry parameter settings.
2-Bromo-1-(3-(3,4-dichlorophenyl)isoxazol-5-yl)ethan-1-one (CAS 175277-38-0) is a high-purity analytical reference standard with the molecular formula C11H6BrCl2NO2 and a molecular weight of 334.98 g/mol.
2-Bromo-1-(3-(3,4-dichlorophenyl)isoxazol-5-yl)ethan-1-one (C11H6BrCl2NO2) contains a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage, chlorine/bromine substitution. Halogen substitution raises its density and boiling point, its high carbon-to-hydrogen ratio confers good lipid solubility, the carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. 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.
As a certified reference material (CRM), 2-Bromo-1-(3-(3,4-dichlorophenyl)isoxazol-5-yl)ethan-1-one meets the metrological traceability requirements of ISO/IEC 17025 laboratories. Batch-to-batch consistency is monitored via control charts to guarantee comparable assigned values across lots.
Physical & Chemical Properties
| Molecular Formula | C11H6BrCl2NO2 |
| Molecular Weight | 334.98 g/mol |
| Appearance | Pale yellow to 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) | 8.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2007 |
| Halogen Content | Cl/Br-containing |
| Nitrogen Atoms | 1 |
Related Bromo Standards
- Methyl 8-bromo-4,6-dichloroquinoline-2-carboxylate (CAS 1150164-76-3)
- 2-Bromo-1-(3-(2,4-dichlorophenyl)isoxazol-5-yl)ethan-1-one (CAS 175334-69-7)
- 3-Bromo-2-chloro-5-nitrobenzene-1-sulfonyl chloride (CAS 1249673-60-6)
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- 2-(3-Bromo-4-(trifluoromethoxy)phenyl)-2,2-difluoroacetic acid (CAS 1133116-05-8)
- 6-Bromo-2-iodoquinoxaline (CAS 1083181-44-5)
- 6-Bromo-4-iodoquinazoline (CAS 1093819-23-8)
Recommended Standards
- 3,5-Dibromo-1-[(4-fluorophenyl)methyl]-1H-1,2,4-triazole (CAS 320424-28-0)
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- 3,5-Dibromo-1-[(3-fluorophenyl)methyl]-1h-1,2,4-triazole (CAS 1240580-18-0)
- 5-Fluoro-2-iodo-1-nitro-3-(trifluoromethyl)benzene (CAS 1980034-09-0)
- 4,5,7-Trichloro-2,3-dihydro-1h-indole-2,3-dione (CAS 828911-72-4)
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- methyl 3-hydroxy-5-(1H-pyrazol-1-yl)thiophene-2-carboxylate (CAS 113387-75-0)
- 2-(Chloromethyl)-5-(4-fluorophenyl)-1,3,4-oxadiazole (CAS 350672-14-9)
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