1H-indene-2-carboxylic acid, 2,3-dihydro-4,5-dimethyl-1-oxo-, methyl ester InChI=1/C13H14O3/c1-7-4-5-9-10(8(7)2)6-11(12(9)14)13(15)16-3/h4-5,11H,6H2,1-3H methyl 4,5-dimethyl-1-oxoindane-2-carboxylate