Used as a key intermediate in the synthesis of pharmaceuticals, particularly in the development of antiviral and antibacterial agents. Its structure allows for easy functionalization, making it valuable in medicinal chemistry for building heterocyclic compounds. It is also employed in the preparation of agrochemicals and functional materials where pyrazine derivatives are required. The ester and carboxylic acid groups enable coupling reactions and the formation of amides or esters, useful in creating diverse compound libraries for drug discovery.