6-(4,4,5,5-Tetramethyl-1,3,2-dioxaborolan-2-yl)chroman, 97%;3,4-Dihydro-2H-chromene-6-boronic acid, pinacol ester, 3,4-Dihydro-6-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-2H-chromene;Chroman-6-boronic acid, pinacol ester;2-(ChroMan-6-yl)-4,4,5,5-tetraMethyl-1,3,2-dioxaborolane