Methylenephenanthrene, 4H-Cyclopenta[def]phenanthrene, 4,5-METHYLENEPHENANTHRENE, 4,5-Phenanthrylenemethane, Benzo[def]fluorene, 4H-Cyclopenta(def)phenanthrene, 4H-cyclobuta<def>phenanthrene, Cyclopenta[d,e,f]phenanthrene, 4,5-Methylenecyclophenanthrene, methyl 4H-cyclopenta[def]phenanthrene
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