2-Bromo-1-(2,3-difluoro-4-methylphenyl)ethan-1-one CAS 1221684-44-1
| CAS No. | 1221684-44-1 |
| Molecular Formula | 2*C9H7BrF2O |
| Molecular Weight | N/A |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
As a certified reference material (CRM), 2-Bromo-1-(2,3-difluoro-4-methylphenyl)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.
2-Bromo-1-(2,3-difluoro-4-methylphenyl)ethan-1-one (CAS 1221684-44-1) is a high-purity analytical reference standard with the molecular formula C9H7BrF2O and a molecular weight of 249.05 g/mol.
2-Bromo-1-(2,3-difluoro-4-methylphenyl)ethan-1-one (C9H7BrF2O) contains a hydroxyl group, an ether linkage, fluorine/bromine substitution, an aromatic ring system. Halogen substitution raises its density and boiling point; these physicochemical properties determine the optimal preparation and storage of its standard solutions. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
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.
Physical & Chemical Properties
| Molecular Formula | 2*C9H7BrF2O |
| Molecular Weight | 249.05 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 methanol, acetonitrile, DMSO, water (slightly soluble) |
| Stability | May oxidize slowly on prolonged air exposure |
| Degree of Unsaturation (DBE) | 5.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1990 |
| Halogen Content | F/Br-containing |
Related Bromo Standards
- 4,9-Bis(5-bromo-2-thienyl)-6,7-bis[4-[(2-ethylhexyl)oxy]phenyl][1,2,5]thiadiazolo[3,4-g]quinoxaline (CAS 1000000-25-8)
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Recommended Standards
- 2,6-Diamino-4-(piperidin-1-yl)pyrimidine 1-oxide sulfate (CAS 210357-39-4)
- 2-((Trimethylsilyl)oxy)ethan-1-ol (CAS 4403-13-8)
- 2-(3-(Bromomethyl)piperidin-1-yl)-5-fluoropyrimidine (CAS 1353979-24-4)
- 1,3-Di-tert-butyl-2-fluoro-5-nitrobenzene (CAS 10330-50-4)
- ((2R,4R)-4-aminotetrahydrofuran-2-yl)methanol (CAS 127682-80-8)
- Methyl 6-chloro-3-ethoxy-2-fluorobenzoate (CAS 2385337-05-1)
- 3-(2-(Tert-butoxy)-2-oxoethylidene)cyclobutane-1-carboxylic acid (CAS 847416-51-7)
- 5-Phenyl-2H-pyrazol-3-ol (CAS 4860-93-9)
- 1-(4-Methylbenzyl)-1H-pyrazole-4-carbonitrile (CAS 1314960-69-4)
- [Plus-β-Ala28]-Semaglutide (CAS CATO-C4X-2226221)
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