Used primarily as an intermediate in the synthesis of pharmaceuticals and agrochemicals. Its structure allows for selective functionalization, making it valuable in constructing complex heterocyclic compounds. Commonly employed in cross-coupling reactions such as Suzuki or Buchwald-Hartwig aminations to introduce pyrazine moieties into target molecules. Found in the development of kinase inhibitors and other biologically active compounds. Also utilized in the preparation of organic semiconductors and functional materials due to the electron-deficient nature of the pyrazine ring.