Used as a key intermediate in the synthesis of agrochemicals, particularly herbicides and plant growth regulators. Its structure allows for functionalization in the development of pyridine-based crop protection agents. It is also employed in the preparation of pharmaceutical intermediates where chlorinated pyridine rings are required for biological activity. The aldehyde group enables condensation reactions, making it valuable in forming more complex molecules through Schiff base or nucleophilic addition pathways. Commonly utilized in research and industrial settings for designing compounds with selective bioactivity.