1,2,5,6-Dibenzophenazine 1,2:5,6-Dibenzphenazine 226-47-1 5-23-10-00184 (Beilstein Handbook Reference) 7,14-Diazadibenz(a,h)anthracene BRN 0217195 DIBENZO(a,h)PHENAZINE Dibenz(a,h)phenazine