Catsyn offer gram to tons of 1,1,3,3,5,5,7,7,9,9,11,11,13,13,15,15-Hexadecamethyloctasiloxane | CAS 19095-24-0, its formula is C16H48O7Si8, molecular weight is 577.23g/mol and the purity is usually NLT 98%.