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1-bromo-3-chloro-4-fluoro-2-iodobenzene; CAS No.: 2226439-58-1;1-bromo-3-chloro-4-fluoro-2-iodobenzene. PROPERTIES: 1-bromo-3-chloro-4-fluoro-2-iodobenzene is a multiply halogenated aromatic compound with molecular formula C6HBrClFI. It typically exists as a colorless liquid with a mild aromatic odor, having a boiling point around 165-170 C. The compound has limited water solubility but dissolves well in organic solvents like dichloromethane or carbon tetrachloride. It exhibits moderate thermal stability but may decompose when exposed to high temperatures or strong bases, releasing toxic halogen-containing fumes. Proper storage involves keeping it in tightly sealed containers below 20 C, protected from light and moisture. APPLICATIONS: In organic synthesis, this compound serves as a highly versatile intermediate for creating complex aromatic systems. The bromo, chloro, fluoro, and iodo substituents provide multiple sites for cross-coupling reactions, enabling the formation of diverse biaryl structures (The Journal of Organic Chemistry). In pharmaceutical research, 1-bromo-3-chloro-4-fluoro-2-iodobenzene contributes to the development of radiopharmaceuticals where the iodine isotope can be incorporated for imaging or therapeutic applications (Journal of Labelled Compounds & Radiopharmaceuticals). The compound also finds application in materials science as a building block for organic electronics, where its multiple electron-withdrawing halogens modulate the electronic properties of derived materials (Advanced Materials).