2381-19-3 3-Methyl-3,4-benzophenanthrene 3-Methylbenzo(c)phenanthrene 4-05-00-02570 (Beilstein Handbook Reference) 7-Methyl-3,4-benzphenanthrene 7-Methyl-3:4-benzophenanthrene BENZO(c)PHENANTHRENE, 3-METHYL- BRN 2328896 NSC 97698