1,2,3,4-tetrahydro-1,4-methanonaphthalene 1,4-methanonaphthalene, 1,2,3,4-tetrahydro- InChI=1/C11H12/c1-2-4-11-9-6-5-8(7-9)10(11)3-1/h1-4,8-9H,5-7H