Used as a key intermediate in the synthesis of agrochemicals, particularly in the production of herbicides and plant growth regulators. Its structure allows for further functionalization, making it valuable in developing active ingredients that target specific enzyme pathways in weeds. Also utilized in the preparation of pharmaceuticals where chloroisonicotinate derivatives show potential in drug discovery, especially in treatments involving metabolic disorders. Commonly employed in research laboratories for designing novel heterocyclic compounds due to its reactive ester and halogen groups, which facilitate coupling reactions and derivatization.