2-Methyl-1,2,7,8-tetrahydro-3-oxa-as-indacen-6-one 2-Methyl-2,3-dihydrofuro-indanone 2-methyl-1,2,7,8-tetrahydro-6H-indeno[5,4-b]furan-6-one 6H-indeno[5,4-b]furan-6-one, 1,2,7,8-tetrahydro-2-methyl- InChI=1/C12H12O2/c1-7-6-10-8-2-4-11(13)9(8)3-5-12(10)14-7/h3,5,7H,2,4,6H2,1H