5-Bromo-2-nitroisonicotinic acid is primarily used in organic synthesis as a versatile intermediate. It serves as a building block in the development of various pharmaceutical compounds, particularly in the synthesis of heterocyclic molecules that exhibit biological activity. Its nitro and bromo functional groups make it a valuable precursor for further chemical modifications, such as nucleophilic substitution or reduction reactions. This compound is also utilized in the research and development of agrochemicals, where it contributes to the creation of new active ingredients for crop protection. Additionally, it finds application in material science, particularly in the synthesis of specialty chemicals and functional materials. Its role in these fields highlights its importance in advancing both industrial and academic research.