Used in the synthesis of pharmaceutical intermediates, particularly in the development of antibacterial and antiviral agents. Its structure serves as a key building block in heterocyclic chemistry, enabling the formation of complex nitrogen-containing compounds. Commonly employed in organic research for constructing fused ring systems and as a ligand in coordination chemistry for catalytic applications. Also utilized in the preparation of fluorescent probes due to its ability to form conjugated systems useful in sensing metal ions.