11,17-Dimethyl-16,17-dihydro-15H-cyclopenta(a)phenanthrene 15H-Cyclopenta(a)phenanthrene, 11,17-dimethyl-16,17-dihydro- 16,17-Dihydro-11,17-dimethyl-15H-cyclopenta(a)phenanthrene 16,17-Dihydro-11,17-dimethylcyclopenta(a)phenanthrene 5831-16-3