Used primarily as an intermediate in the synthesis of pharmaceuticals and agrochemicals. Its halogen substituents allow for selective cross-coupling reactions, making it valuable in building complex heterocyclic systems. Commonly employed in the development of herbicides and fungicides due to the bioactive nature of pyrazine derivatives. Also utilized in materials science for constructing functional organic molecules with electronic properties, such as in organic semiconductors or sensors. Its reactivity profile supports transformations like Suzuki and Ullmann couplings, enabling diverse derivatization in research and industrial settings.