Used as a key intermediate in the synthesis of various pharmaceuticals, particularly in antimalarial drugs. It serves as a building block in the development of biologically active compounds due to its nitrogen-containing heterocyclic structure. Commonly employed in medicinal chemistry for constructing kinase inhibitors and antimicrobial agents. Also utilized in the preparation of fluorescent dyes and optoelectronic materials owing to its aromatic and electron-accepting properties. Plays a role in coordination chemistry as a ligand for metal complexes in catalysis.