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CAS NO.: 928783-87-3;1-chloro-2-fluoro-5-iodo-3-(trifluoromethyl)benzene. PROPERTIES: 1-chloro-2-fluoro-5-iodo-3-(trifluoromethyl)benzene is a chlorinated, fluorinated, iodinated, and trifluoromethylated aromatic compound with molecular formula C7H3ClF3I. It typically exists as a colorless liquid with a boiling point around 150-155°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 chloro, fluoro, iodo, and trifluoromethyl substituents provide multiple sites for cross-coupling reactions, enabling the formation of diverse biaryl structures (The Journal of Organic Chemistry). In pharmaceutical research, 1-chloro-2-fluoro-5-iodo-3-(trifluoromethyl)benzene 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 groups modulate the electronic properties of derived materials (Advanced Materials).