5H-benzocycloheptene, 6,7,8,9-tetrahydro- 6,7,8,9-tetrahydro-5H-benzo[7]annulene InChI=1/C11H14/c1-2-6-10-8-4-5-9-11(10)7-3-1/h4-5,8-9H,1-3,6-7H