Used as a key intermediate in the synthesis of pharmaceuticals, particularly in the production of vasodilator drugs like dilazep and related cardiovascular agents. It serves as a building block in organic synthesis due to the reactivity of both the hydroxyl group and the pyrazine ring, enabling functionalization for drug development. Also employed in the preparation of heterocyclic compounds with potential biological activity, including antimicrobial and anti-inflammatory agents. Its polar nature and ability to form hydrogen bonds make it useful in the design of molecules with improved solubility and bioavailability.