Used primarily as an alkylating agent in organic synthesis, it facilitates the introduction of the benzyl group into various molecules. It is commonly employed in the preparation of pharmaceuticals, particularly in the synthesis of active pharmaceutical ingredients (APIs) where benzylation is required. Additionally, it serves as a key intermediate in the production of fine chemicals and agrochemicals. Its reactivity with nucleophiles makes it valuable in creating complex organic compounds. In research, it is utilized for modifying organic compounds to study their properties or to develop new materials.