3:4-Dimethylene-1:2-benzanthracene 4,5-DIHYDROBENZ(K)ACEPHENANTHRYLENE 4-05-00-02638 (Beilstein Handbook Reference) 5779-79-3 Acenaphthanthracene BRN 3274312 Benz(k)acephenanthrene Benz(k)acephenanthrylene, 4,5-dihydro-