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2-bromo-4-chloro-5-nitrophenol; CAS No.: 1073437-11-2;2-bromo-4-chloro-5-nitrophenol. PROPERTIES: 2-bromo-4-chloro-5-nitrophenol is a brominated, chlorinated, and nitrated phenolic compound with molecular formula C6H3BrClNO3. It typically exists as a white to off-white crystalline powder with a melting point of approximately 110-115 C. The compound has limited water solubility but dissolves in basic aqueous solutions. It exhibits moderate thermal stability but may decompose when exposed to high temperatures or strong reducing agents, releasing toxic nitrogen oxides and bromine-containing fumes. Proper storage involves keeping it in tightly sealed containers below 25 C, protected from light and moisture. APPLICATIONS: In pharmaceutical research, this compound serves as a lead structure for developing antimicrobial agents. The bromo and chloro substitution provides electron-withdrawing effects that enhance binding to microbial targets, while the nitro group can generate bioactive nitric oxide under physiological conditions (European Journal of Medicinal Chemistry). In materials science, 2-bromo-4-chloro-5-nitrophenol contributes to the creation of functional organic materials with tailored electronic properties. Its halogenated aromatic core and nitro group influence the electronic characteristics of derived materials, useful in optoelectronic applications such as organic light-emitting diodes (Journal of Materials Chemistry C). The phenolic hydroxyl group enables formation of coordination complexes with metal ions, expanding applications in supramolecular chemistry and catalysis (Dalton Transactions).