11-Methyl-15,16-dihydro-17H-cyclopenta[a]phenanthrene;11-Methyl-16,17-dihydro-15H-cyclopenta[a]phenanthrene;15,16-Dihydro-11-methyl-17H-cyclopenta[a]phenanthrene;16,17-Dihydro-11-methyl-15H-cyclopenta[a]phenanthrene
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