Used in organic synthesis as an intermediate for pharmaceuticals and bioactive compounds. Its fused heterocyclic structure makes it valuable in developing potential drug candidates, particularly in antimicrobial and antiviral research. The aldehyde functional group allows for easy modification, enabling the formation of Schiff bases, hydrazones, and other derivatives important in medicinal chemistry. Also explored in the design of fluorescent probes due to its conjugated system, useful in biochemical imaging and sensor development.