1H-indene-2-carboxylic acid, 2,3-dihydro-5,6-dimethyl-, methyl ester InChI=1/C13H16O2/c1-8-4-10-6-12(13(14)15-3)7-11(10)5-9(8)2/h4-5,12H,6-7H2,1-3H methyl 5,6-dimethylindane-2-carboxylate