3-Bromo-2-nitrobenzoic acid is primarily used as an intermediate in organic synthesis, particularly in the production of pharmaceuticals and fine chemicals. Its reactive functional groups make it valuable for constructing complex molecules, especially in the development of drugs and bioactive compounds. It is also employed in research settings for studying reaction mechanisms and developing new synthetic pathways. Additionally, it can serve as a precursor for dyes and pigments due to its aromatic structure and nitro group, which contribute to color formation. In material science, it is sometimes utilized in the synthesis of specialty polymers or coatings with specific chemical properties.