Used as a key intermediate in the synthesis of pharmaceuticals, particularly in the development of antihypertensive and antiviral agents. Its aldehyde functionality allows for easy modification, enabling the formation of Schiff bases and other derivatives important in drug design. Also employed in agrochemicals for creating herbicides and plant growth regulators. Additionally, it serves as a building block in the preparation of functional materials such as ligands for metal-organic frameworks and fluorescent probes due to its nitrogen-rich heterocyclic structure.