InChI=1/C10H16O5/c1-7(11)4-8(5-9(12)14-2)6-10(13)15-3/h8H,4-6H2,1-3H dimethyl 3-(2-oxopropyl)pentanedioate pentanedioic acid, 3-(2-oxopropyl)-, dimethyl ester