1H-indene-2-carboxylic acid, 2,3-dihydro-6-methyl-1-oxo-, methyl ester InChI=1/C12H12O3/c1-7-3-4-8-6-10(12(14)15-2)11(13)9(8)5-7/h3-5,10H,6H2,1-2H methyl 6-methyl-1-oxoindane-2-carboxylate