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2-bromo-5-(trifluoromethoxy)benzonitrile; CAS No.: 1804402-93-4;2-bromo-5-(trifluoromethoxy)benzonitrile. PROPERTIES: 2-bromo-5-(trifluoromethoxy)benzonitrile is a brominated and trifluoromethylated aromatic nitrile with molecular formula C8H4BrF3NO. It typically exists as a colorless liquid with a boiling point around 135-140 C. The compound has limited water solubility but dissolves well in organic solvents like dichloromethane or THF. It exhibits moderate thermal stability but may decompose when exposed to high temperatures or strong bases, releasing toxic bromine vapors. 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 versatile intermediate for creating complex aromatic systems. The bromo substituent provides a site for cross-coupling reactions to form biaryl structures, while the trifluoromethoxy and nitrile groups offer additional functionality for further elaboration (The Journal of Organic Chemistry). In pharmaceutical development, 2-bromo-5-(trifluoromethoxy)benzonitrile contributes to the synthesis of antimicrobial agents where the halogenated aromatic scaffold enhances binding to microbial targets (Antimicrobial Agents and Chemotherapy). The compound also finds application in materials science as a building block for organic electronics, where its electron-deficient aromatic core modulates the electronic properties of derived materials (Advanced Materials).