Used as a key intermediate in the synthesis of pharmaceuticals, particularly in the production of sulfathiazole antibiotics, which are part of the sulfonamide class used to treat bacterial infections. It also serves in the development of agrochemicals, including certain fungicides and plant growth regulators. Its structure supports the creation of biologically active molecules, making it valuable in medicinal chemistry research and the design of new therapeutic agents. Additionally, it is employed in the preparation of dyes and functional materials due to its heterocyclic and halogenated properties.