2-Bromo-4-(2,6-difluorophenyl)-1-butene CAS 951892-47-0
| CAS No. | 951892-47-0 |
| Molecular Formula | C10H9BrF2 |
| Molecular Weight | 247.08 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
The molecular framework of 2-Bromo-4-(2,6-difluorophenyl)-1-butene (C10H9BrF2) is characterized by fluorine/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. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.
2-Bromo-4-(2,6-difluorophenyl)-1-butene (CAS 951892-47-0) is a high-purity analytical reference standard with the molecular formula C10H9BrF2 and a molecular weight of 247.08 g/mol.
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-4-(2,6-difluorophenyl)-1-butene 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 | C10H9BrF2 |
| Molecular Weight | 247.08 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 chloroform, dichloromethane, ethyl acetate |
| 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.) | 1987 |
| Halogen Content | F/Br-containing |
Related Bromo Standards
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Recommended Standards
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- 2-(2-Bromoethoxy)benzaldehyde (CAS 60633-78-5)
- 1-(2-Bromo-5-methylthiazol-4-yl)ethan-1-one (CAS 1280703-71-0)
- 5-Chloro-3-isopentylbenzo[d]oxazol-2(3H)-one (CAS 883279-90-1)
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- 2-(Cyclopent-2-en-1-yl)-N-(4-iodophenyl)acetamide (CAS 412931-83-0)
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- Semaglutide impurity 199 (CAS CATO-C4X-2226199)
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