Used as a reagent in organic synthesis, particularly in the introduction of trifluoroethyl groups into molecules. It is valuable in the preparation of pharmaceuticals and agrochemicals due to its ability to act as a strong alkylating agent. Additionally, it is employed in the synthesis of complex organic compounds where the trifluoroethyl moiety is required for specific chemical properties or biological activity. Its reactivity makes it useful in creating intermediates for further chemical transformations.