Catsyn offer gram to tons of 4,4,5,5-Tetramethyl-2-(3,3,5,5-tetramethylcyclohex-1-EN-1-YL)-1,3,2-dioxaborolane | CAS 859217-85-9, its formula is C16H29BO2, molecular weight is 264.21g/mol and the purity is usually NLT 98%.