(Trimethylsilyl)methyl trifluoromethanesulfonate is a highly reactive organosilicon reagent used in organic synthesis for introducing the (trimethylsilyl)methyl (CH₂TMS) group. As a triflate ester, it functions as a strong electrophile in alkylation reactions, enabling efficient carbon-carbon bond formation. The CH₂TMS moiety serves as a versatile masked functional group, useful in homologation strategies, Peterson olefination, and other transformations leading to alcohols, aldehydes, or alkenes. It is widely employed in the synthesis of complex intermediates for pharmaceuticals, agrochemicals, and advanced materials such as polymers and coatings. Its specificity and reactivity make it indispensable for selective manipulations in multi-step synthetic routes.