IUPAC:(1S,3aS,3bR,9aR,9bS,11aS)-1-hydroxy-9a,11a-dimethyl-5-methylidene-1H,2H,3H,3aH,3bH,4H,5H,7H,9aH,9bH,10H,11H,11aH-cyclopenta[a]phenanthren-7-one
IUPAC:(1S,3aS,3bR,9aR,9bS,11aS)-1-hydroxy-9a,11a-dimethyl-5-methylidene-1H,2H,3H,3aH,3bH,4H,5H,7H,9aH,9bH,10H,11H,11aH-cyclopenta[a]phenanthren-7-one