Catsyn offer gram to tons of Benzoic acid, 4,4'-[2,8-bis(1,1-dimethylethyl)-4,10-dihydropyreno[4,5-D:9,10-D']diimidazole-5,11-diyl]bis- | CAS 1184934-21-1, its formula is C40H34N4O4, molecular weight is 634.72g/mol and the purity is usually NLT 98%.