2-Bromo-3,5-dinitrobenzoic acid is primarily used in organic synthesis as a reagent or intermediate. Its structure, featuring both nitro and bromo groups, makes it valuable for introducing functional groups into aromatic compounds. It is often employed in the preparation of more complex molecules, particularly in pharmaceutical research, where it can be used to develop active pharmaceutical ingredients (APIs). Additionally, it serves as a building block in the synthesis of dyes, pigments, and other specialty chemicals. Its reactivity also makes it useful in studies involving nucleophilic aromatic substitution reactions, aiding in the exploration of reaction mechanisms and the development of new synthetic pathways.