... -(4,4,5,5-tetramethyl-[1,3,2]dioxaborolan-2-yl)-phenyl]-urea can be used as ... have advanced technique,so our quality is the best,4-(3-(2-fluoro-5-methylphenyl)ureido)phenylboronic acid is about 0 ... impurities not more than0.2%,1-(5-Fluoro-2-methyl-phenyl)-3-[4-(4,4,5,5-tetramethyl-[1,3,2]dioxaborolan-2-yl ...