methyl 1-methyl-2-oxo-3,4,9,10-tetrahydrophenanthrene-4a(2H)-carboxylate

4a-methyl-3,4,4a,9,10,10a-hexahydro-1(2H)-phenanthrone

β-四氢萘酮

1-[2,4-Dinitro-phenylhydrazono]-1,2,3,4,5,6,7,8-octahydro-phenanthren