... -(4,4,5,5-tetramethyl-[1,3,2]dioxaborolan-2-yl)-phenyl]-urea can be used as intermediates to sy Our ... use it synthesis other pharmaceutical materials .Our company can product a lot of it,we are sure our price is lowest ... -(4,4,5,5-tetramethyl-[1,3,2]dioxaborolan-2-yl)-phenyl]-urea Less than 0.05%.