Used as a key intermediate in the synthesis of pharmaceuticals, particularly in the development of kinase inhibitors and other bioactive molecules. Its structure allows for selective functionalization, making it valuable in medicinal chemistry for constructing heterocyclic compounds. Commonly employed in cross-coupling reactions such as Suzuki or Buchwald-Hartwig aminations to introduce the pyrazine core into larger drug-like molecules. Also utilized in agrochemical research for designing novel pesticides and herbicides due to its electron-deficient aromatic system that enhances binding to biological targets.