1H-Dibenz(3,4:7,8)anthra(1,2-b)azirine, 1a,13b-dihydro- 1a,13b-Dihydro-1H-dibenz(3,4:7,8)anthra(1,2-b)azirine 71382-49-5 BRN 1652433 CCRIS 1993 Dibenz(a,h)anthracene 5,6-imine Dibenz(a,h)anthracene-5,6-imine