Used as a key intermediate in the synthesis of pharmaceuticals, particularly in the development of heterocyclic compounds with biological activity. It serves as a building block in the preparation of pyrazine-based drug candidates, including those explored for antimicrobial, antiviral, and anticancer properties. Its ester groups allow for easy functionalization, making it valuable in medicinal chemistry for structure-activity relationship studies. Also employed in the design of complex organic molecules where the pyrazine ring acts as a core scaffold.