2172-33-0 37229-11-1 6,18-Dihydrodinaphtho(2,3-i:2',3'-i')benzo(1,2-a:4,5-a')dicarbazole-5,7,12,17,19,24-hexone Dinaphtho(2,3-i:2',3'-i')benzo(1,2-a:4,5-a')dicarbazole-5,7,12,17,19,24(6H,18H)-hexone Dinaphtho(2,3-i:2',3'-i)benzo(1,2-a:4,5-a')dicarbazole-5,7,12,17,19,24-hexone, 6,18-dihydro- EINECS 218-524-5