Potassium trifluoro(2-(methylsulfonyl)phenyl)borate is primarily used in organic synthesis as a versatile reagent, particularly in cross-coupling reactions. It serves as a stable and efficient source of the trifluoroborate anion, which is valuable in Suzuki-Miyaura coupling reactions to form carbon-carbon bonds. This chemical is also employed in the preparation of pharmaceuticals and agrochemicals, where its stability and reactivity under mild conditions make it a preferred choice. Additionally, it finds application in the development of advanced materials, such as organic semiconductors and polymers, due to its ability to facilitate precise molecular transformations. Its compatibility with various functional groups further enhances its utility in complex synthetic pathways.