1-Methyl-3,4-benzophenanthrene 1-Methyl-3,4-benzphenanthrene 2381-34-2 4-05-00-02572 (Beilstein Handbook Reference) 6-Methyl-3,4-benzophenanthrene 6-Methylbenzo(c)phenanthrene BENZO(c)PHENANTHRENE, 6-METHYL- BRN 2329426 NSC 171294