Catsyn offer gram to tons of [1,1'-Biphenyl]-3,5-dicarboxylic acid, 4'-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-YL)-, 3,5-diethyl ester | CAS 2304634-29-3, its formula is C24H29BO6, molecular weight is 424.29g/mol and the purity is usually NLT 98%.