Catsyn offer gram to tons of Benzoic acid, 4,4',4'',4'''-(1,3,6,8-pyrenetetrayltetra-2,1-ethynediyl)tetrakis- | CAS 1569900-71-5, its formula is C52H26O8, molecular weight is 778.76g/mol and the purity is usually NLT 98%.