IUPAC:2-[(1E,3aS,3bR,7S,9aR,9bS,11aS)-7-(acetyloxy)-9a,11a-dimethyl-1H,2H,3H,3aH,3bH,4H,6H,7H,8H,9H,9aH,9bH,10H,11H,11aH-cyclopenta[a]phenanthren-1-ylidene]ethyl acetate
IUPAC:2-[(1E,3aS,3bR,7S,9aR,9bS,11aS)-7-(acetyloxy)-9a,11a-dimethyl-1H,2H,3H,3aH,3bH,4H,6H,7H,8H,9H,9aH,9bH,10H,11H,11aH-cyclopenta[a]phenanthren-1-ylidene]ethyl acetate