5807-64-7 InChI=1/C16H14O4/c1-19-15(17)13-9-5-3-7-11(13)12-8-4-6-10-14(12)16(18)20-2/h3-10H,1-2H [1,1'-biphenyl]-2,2'-dicarboxylic acid, dimethyl ester dimethyl biphenyl-2,2'-dicarboxylate