Used as a key intermediate in the synthesis of pharmaceuticals, particularly in the development of active pharmaceutical ingredients (APIs) with biological activity. Its structure allows for selective functionalization, making it valuable in constructing complex heterocyclic compounds. Commonly employed in cross-coupling reactions such as Suzuki or Heck reactions to build carbon-carbon bonds in drug discovery. Also utilized in the preparation of agrochemicals and functional materials where halogenated thiophenes enhance electronic properties or reactivity.