Catsyn offer gram to tons of Ethyl [4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-YL)-1H-pyrazol-1-YL]acetate | CAS 864754-16-5, its formula is C13H21BN2O4, molecular weight is 280.13g/mol and the purity is usually NLT 98%.