Used in the synthesis of pharmaceutical intermediates, particularly in the development of agrochemicals and bioactive molecules. Its reactive chloromethyl group allows for easy alkylation and coupling reactions, making it valuable in constructing complex organic compounds. Commonly employed in the preparation of trifluoromethyl-substituted pyridine derivatives, which exhibit enhanced metabolic stability and lipophilicity, beneficial in crop protection agents and medicinal chemistry. Also utilized in the manufacture of selective receptor modulators and enzyme inhibitors due to the electron-withdrawing effect of the trifluoromethyl group, which influences binding affinity and potency.