1,2,6,7,8,9-hexahydro-3H-cyclopenta[a]naphthalen-3-one 3H-benz[e]inden-3-one, 1,2,6,7,8,9-hexahydro- InChI=1/C13H14O/c14-13-8-7-11-10-4-2-1-3-9(10)5-6-12(11)13/h5-6H,1-4,7-8H