IUPAC:(1R,3aS,3bR,4R,9bS,11aS)-1-ethynyl-1-hydroxy-4,11a-dimethyl-1H,2H,3H,3aH,3bH,4H,5H,6H,7H,8H,9H,9bH,10H,11H,11aH-cyclopenta[a]phenanthren-7-one
IUPAC:(1R,3aS,3bR,4R,9bS,11aS)-1-ethynyl-1-hydroxy-4,11a-dimethyl-1H,2H,3H,3aH,3bH,4H,5H,6H,7H,8H,9H,9bH,10H,11H,11aH-cyclopenta[a]phenanthren-7-one