11-Methyl-15,16-dihydro-17H-cyclopenta(a)phenanthrene 15H-Cyclopenta(a)phenanthrene, 16,17-dihydro-11-methyl- 17H-Cyclopenta(a)phenanthrene, 15,16-dihydro-11-methyl- 24684-41-1 3-05-00-02251 (Beilstein Handbook Reference) 4-Methyl-1,2-cyclopentenophenanthrene BRN 3268798