Used as a key intermediate in the synthesis of pharmaceuticals, particularly in the development of antitubercular and antimicrobial agents. Its hydrazine functionality allows for derivatization into various heterocyclic compounds, including triazoles and oxadiazoles, which are common scaffolds in drug design. Also employed in the preparation of agrochemicals and dyes due to its reactivity and ability to form stable conjugates. Its pyridine ring enhances binding affinity in biological systems, making it valuable in medicinal chemistry research.