103-43-5 InChI=1/C18H18O4/c19-17(21-13-15-7-3-1-4-8-15)11-12-18(20)22-14-16-9-5-2-6-10-16/h1-10H,11-14H butanedioic acid, bis(phenylmethyl) ester dibenzyl succinate