Used primarily as an intermediate in the synthesis of pharmaceuticals and agrochemicals. Its reactivity allows for the introduction of the pyrazine ring into larger molecules, facilitating the development of active ingredients in crop protection agents and medicinal compounds. The iodo group enables coupling reactions, such as Suzuki or Heck reactions, making it valuable in medicinal chemistry for constructing complex heterocyclic systems. Also employed in research settings to develop novel functional materials and ligands for catalysis.