Used primarily in research and development, 3-Nitroquinoline serves as a key intermediate in the synthesis of various pharmaceuticals and organic compounds. Its nitro group makes it a valuable precursor in the production of dyes, agrochemicals, and other nitro-substituted heterocycles. Additionally, it is employed in studies related to mutagenicity and carcinogenicity, providing insights into the effects of nitroaromatic compounds on biological systems. In material science, it is explored for its potential in creating advanced polymers and coatings with specific chemical properties.