Used primarily as an intermediate in organic synthesis, especially in the pharmaceutical and agrochemical industries. Its reactive chloromethyl group allows for easy alkylation and functionalization, making it valuable in constructing nitrogen-containing heterocyclic compounds. It plays a key role in click chemistry applications, where triazole rings are needed as stable linkages in drug design and bioconjugation. Also utilized in the development of ionic liquids and as a building block for functional materials due to its thermal stability and polarity.