1,6,7,8-tetrahydro-as-indacen-3(2H)-one InChI=1/C12H12O/c13-12-7-6-10-9-3-1-2-8(9)4-5-11(10)12/h4-5H,1-3,6-7H as-indacen-3(2H)-one, 1,6,7,8-tetrahydro-