Catsyn offer gram to tons of 1,1,2,2-Tetrakis(4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-YL)phenyl)ethene | CAS 1660996-72-4, its formula is C50H64B4O8, molecular weight is 836.28g/mol and the purity is usually NLT 98%.