Used in the synthesis of pharmaceuticals, particularly as an intermediate in the production of antihypertensive agents and other bioactive molecules. Its reactive chloromethyl group allows for easy alkylation or attachment to other molecular frameworks, making it valuable in medicinal chemistry for developing drug candidates. Commonly employed in the preparation of quinazoline-based kinase inhibitors and central nervous system modulators. Also utilized in research settings to build complex heterocyclic compounds with potential therapeutic activity.