1,4-Endo-o-phenylenenaphthalene, 1,2,3,4-tetrahydro- 5675-64-9 9,10-Dihydro-9,10-ethanoanthracene 9,10-Ethanoanthracene, 9,10-dihydro- Dibenzobicyclo[2.2.2]octadiene NSC155525