Used as a key intermediate in the synthesis of pharmaceuticals, particularly in the production of antiviral and antifungal agents. Its reactive chloromethyl group allows for easy alkylation, making it valuable in constructing nitrogen-containing heterocyclic compounds. Commonly employed in the development of histamine H2 receptor antagonists and other bioactive molecules. Also utilized in agrochemical synthesis for creating active ingredients in crop protection products. Its hydrochloride salt form enhances stability and solubility, facilitating handling in various reaction conditions.