4-Bromoquinoline-6-carboxylic acid is primarily utilized as a key intermediate in the synthesis of various pharmaceutical compounds. It plays a significant role in the development of drugs targeting infectious diseases, particularly in the creation of antimalarial agents. The compound's structure allows for modifications that enhance its biological activity, making it valuable in medicinal chemistry research. Additionally, it is employed in the production of organic dyes and pigments, where its quinoline core contributes to the stability and color properties of the final product. Its application extends to materials science, where it is used in the synthesis of advanced organic materials with potential use in electronic devices.