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