Used as an intermediate in the synthesis of pharmaceuticals and agrochemicals, particularly in the development of kinase inhibitors and other biologically active compounds. Its structure supports the construction of complex heterocyclic systems found in drug candidates. Commonly employed in cross-coupling reactions such as Suzuki or Buchwald-Hartwig aminations to form carbon-carbon or carbon-nitrogen bonds in medicinal chemistry research. Also utilized in the preparation of organic semiconductors and materials for electronic applications due to the electron-rich nature of the thienopyridine core.