trimethylsilyl trifluoromethanesulfonate , with the chemical formula (CH3)3SiOTf, is synthesized through the reaction of trimethylsilyl chloride with trifluoromethanesulfonic anhydride. This process yields a colorless, volatile liquid reagent with a characteristic pungent odor. The structure of TMSOTf features a trimethylsilyl (TMS) group coordinated with a trifluoromethanesulfonate (triflate) anion, endowing it with unique reactivity and functionality.