InChI=1/C10H18O3/c1-5-10(6-7-11,8(2)3)9(12)13-4/h7-8H,5-6H2,1-4H butanoic acid, 2-ethyl-3-methyl-2-(2-oxoethyl)-, methyl ester methyl 2-ethyl-3-methyl-2-(2-oxoethyl)butanoate