Used in organic synthesis as an intermediate for pharmaceuticals and agrochemicals. Its structure allows for selective cross-coupling reactions, making it valuable in the development of kinase inhibitors and other bioactive molecules. Commonly employed in Suzuki and Negishi couplings to build complex heterocyclic systems. Also utilized in the preparation of fluorescent probes due to its electron-withdrawing aldehyde group and halogen handle for further functionalization. Shows promise in materials science for constructing conjugated systems in organic electronics.