1,1a,6b,7,7a,12b-Hexahydrodibenz(3,4:7,8)anthra(1,2-b:5,6-b')bisazirine 80984-67-4 BRN 4543761 CCRIS 5710 Dibenz(3,4:7,8)anthra(1,2-b:5,6-b')bisazirine, 1,1a,6b,7,7a,12b-hexahydro- Dibenz(a,h)anthracene-5,6:12,13-bisimine