Benzenamine,4-(4,4,5,5-tetramethyl-1

4-Aminophenylboronic acid pinacol ester (Benzenamine, 4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-, CAS 214360-73-3, C12H18BNO2, molecular weight 219.09, density 1.05 g/cm3, melting point 165–169°C) is manufactured directly by Chem-Stone (Guangzhou) Co., Ltd. It is distributed across North America, Central/South America, Western and Eastern Europe, Australasia, Asia, the Middle East, and Africa.