Used as a key intermediate in the synthesis of pharmaceutical compounds, particularly in the development of kinase inhibitors and other biologically active molecules. Its structure allows for selective functionalization, making it valuable in medicinal chemistry for creating analogs with enhanced binding affinity. Commonly employed in cross-coupling reactions such as Suzuki or Buchwald-Hartwig aminations to build complex heterocyclic systems. Also utilized in agrochemical research for designing novel pesticides and herbicides due to its electron-deficient pyrazine core and tunable reactivity.