Used primarily as an intermediate in the synthesis of pharmaceuticals and agrochemicals. Its structure allows for selective functionalization, making it valuable in constructing nitrogen-containing heterocyclic compounds. Commonly employed in the development of kinase inhibitors and other biologically active molecules. Also utilized in the preparation of dyes and fluorescent probes due to its electron-withdrawing substituents and aldehyde reactivity. Suitable for use in condensation reactions and as a building block in combinatorial chemistry.