1,2,3,4-Dibenzophenanthrene 1,2,3,4-Dibenzphenanthrene 1,2:3,4:7,8-Tribenznaphthalene 196-78-1 4-05-00-02724 (Beilstein Handbook Reference) BENZO(G)CHRYSENE BRN 2212952 Benzo(a)triphenylene HSDB 4033