Used as a reagent in organic synthesis, particularly in Suzuki-Miyaura cross-coupling reactions. It serves as a stable boron-containing partner that enables the formation of carbon-carbon bonds, especially in the synthesis of biaryl compounds. The 4-methoxybenzyl group enhances reactivity and selectivity in certain coupling processes, making it valuable in pharmaceutical and agrochemical research where complex aromatic structures are common. Its potassium and trifluoroborate components contribute to improved solubility and handling compared to other boronic acid derivatives.