2,2'-Iminostilbene 2,3,6,7-Dibenzazepine 256-96-2 5-AZADIBENZO(A,E)CYCLOHEPTATRIENE 5H-Dibenz(b,f)azepine 5H-Dibenzo(b,f)azepine Dibenz(b,f)azepine EINECS 205-970-0 Iminostilbene NSC 123458 Stilbene, 2,2'-imino-