Catsyn offer gram to tons of 5'-(4-Formyl-3-hydroxyphenyl)-3,3''-dihydroxy-[1,1':3',1''-terphenyl]-4,4''-dicarbaldehyde | CAS 2244985-34-8, its formula is C27H18O6, molecular weight is 438.43g/mol and the purity is usually NLT 98%.