Used as a key reagent in organic synthesis, particularly in transition-metal-catalyzed cross-coupling reactions. It serves as a trifluoromethylthiolating agent, enabling the introduction of the SCF₃ group into organic molecules, which is valuable in pharmaceutical and agrochemical development due to the group’s high lipophilicity and metabolic stability. Commonly employed in the preparation of bioactive compounds and functional materials where enhanced membrane permeability and electron-withdrawing properties are required. Its iodine moiety allows further functionalization via coupling reactions, making it a versatile building block in medicinal chemistry and late-stage diversification of complex molecules.