Used as a key intermediate in the synthesis of pharmaceuticals, particularly in the development of antihypertensive and antiviral drugs. Its reactive chloromethyl group allows for easy alkylation or coupling reactions, making it valuable in building complex heterocyclic systems. Commonly employed in the preparation of thiazole-based drug candidates due to its ability to enhance metabolic stability and bioavailability. Also utilized in agrochemical research for developing novel pesticides with improved efficacy.