6-(4,4,5,5-Tetramethyl-1,3,2-dioxaborolan-2-yl)-2-benzofuran-1(3H)-one (CAS 862081-38-7) is a valuable pinacol boronate ester derivative used in synthetic chemistry. It acts as a key organoboron intermediate for Suzuki-Miyaura cross-coupling reactions, facilitating the construction of complex carbon-carbon bonds essential in pharmaceutical and agrochemical development. Purity > 99%.