Used as a key intermediate in the synthesis of pharmaceuticals, particularly in the development of antitumor and antimicrobial agents. Its structure allows for the formation of fused heterocyclic compounds, which are common in bioactive molecules. Also employed in the preparation of dyes and fluorescent probes due to its ability to participate in condensation reactions that yield conjugated systems. Commonly utilized in research settings for building more complex nitrogen-containing rings relevant to medicinal chemistry.