1a,11d-Dihydrobenz(9,10)aceanthryleno(1,2-b)oxirene 93673-33-7 Benz(9,10)aceanthryleno(1,2-b)oxirene, 1a,11d-dihydro- Benz(l)aceanthrylene, 1,2-dihydro-1,2-epoxy- Benz(l)aceanthrylene-1,2-oxide CCRIS 1698