Used as a key intermediate in the synthesis of agrochemicals and pharmaceuticals, particularly in the development of herbicides and plant growth regulators. Its structure allows for selective functionalization, making it valuable in creating complex heterocyclic compounds. It is also employed in the preparation of ligands for catalytic reactions, enhancing efficiency in asymmetric synthesis. Due to its aldehyde group and chlorine substituent, it participates in coupling and condensation reactions, useful in building nitrogen-containing organic molecules.