4-methyl 1-(4-methylphenyl) 2-methylsuccinate InChI=1/C13H16O4/c1-9-4-6-11(7-5-9)17-13(15)10(2)8-12(14)16-3/h4-7,10H,8H2,1-3H butanedioic acid, 2-methyl-, 4-methyl 1-(4-methylphenyl) ester