1,2,3,4-Dibenzphenazine 1,2:3,4-Dibenzophenazine 215-64-5 5-23-10-00183 (Beilstein Handbook Reference) 9,14-Diazadibenz(a,c)anthracene AI3-24100 BRN 0217169 DIBENZO(a,c)PHENAZINE NSC 6945 Phenanthrazine (VAN) Phenanthro(9,10-b)quinoxaline Phenanthro-9',10':2,3-quinoxaline