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2-methoxy-3-nitrobenzoic acid; CAS No.: 40751-88-0;2-methoxy-3-nitrobenzoic acid. PROPERTIES: 2-methoxy-3-nitrobenzoic acid is a methoxylated and nitrated aromatic carboxylic acid with molecular formula C7H5NO5. It typically exists as a white to off-white crystalline powder with a melting point of approximately 185-190 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 acids, releasing toxic nitrogen oxides. Proper storage involves keeping it in tightly sealed containers below 25 C, protected from moisture and heat. APPLICATIONS: In pharmaceutical research, this compound serves as a lead structure for developing antimicrobial and anticancer agents. The methoxy and nitro substitution provides structural diversity that enhances binding to biological targets, while the carboxylic acid group forms the pharmacophore essential for activity (European Journal of Medicinal Chemistry). In materials science, 2-methoxy-3-nitrobenzoic acid contributes to the creation of functional organic materials with tailored electronic properties. Its methoxylated aromatic core and carboxylic acid group influence the electronic characteristics of derived materials, useful in optoelectronic applications such as organic field-effect transistors (Journal of Materials Chemistry C). The compound can also form coordination polymers or metal-organic frameworks with potential applications in gas storage or catalysis (Chemistry of Materials).