Bromanilic acid is primarily used in analytical chemistry as a reagent for the determination of metal ions. It forms stable complexes with various metals, making it useful in spectrophotometric analysis to quantify metal concentrations in samples. Additionally, it serves as a precursor in the synthesis of organic compounds, particularly in the preparation of dyes and pigments. Its ability to act as a chelating agent also finds applications in coordination chemistry for studying metal-ligand interactions. In research, it is employed in the development of materials with specific electronic or optical properties.