Used as an intermediate in the synthesis of pharmaceuticals, particularly in the development of antihypertensive agents and other bioactive molecules. Its reactive chloromethyl group allows for alkylation reactions, enabling the attachment of various functional groups in drug design. Commonly employed in the preparation of amide-linked conjugates and prodrugs due to its stability and selective reactivity. Also utilized in the production of specialty polymers and agrochemicals where controlled functionalization is required.