2-Methyl-3,4-benzphenanthrene 4-05-00-02571 (Beilstein Handbook Reference) 5-Methyl-3,4-benzophenanthrene 5-Methylbenzo(c)phenanthrene 652-04-0 BENZO(c)PHENANTHRENE, 5-METHYL- BRN 2329427 NSC 135889