Catsyn offer gram to tons of 5'-(4-Carboxyphenyl)-2'-methoxy-4'-methyl-[1,1':3',1''-terphenyl]-4,4''-dicarboxylic acid | CAS 1842393-49-0, its formula is C29H22O7, molecular weight is 482.48g/mol and the purity is usually NLT 98%.