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