Catsyn offer gram to tons of 9H-Carbazole, 9,9'-[5-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-YL)-1,3-phenylene]bis- | CAS 1082549-89-0, its formula is C36H31BN2O2, molecular weight is 534.45g/mol and the purity is usually 98% Min..