Used as a key intermediate in the synthesis of pharmaceuticals, particularly in the development of antiviral and antibacterial agents. Its pyrazine core supports the construction of nitrogen-rich heterocyclic compounds, which are important in drug design for their biological activity. Commonly employed in research settings to build more complex molecules with potential therapeutic effects. Also utilized in the preparation of agrochemicals and functional materials due to its reactive amino, chloro, and ester groups, enabling diverse chemical modifications such as nucleophilic substitutions and esterifications.