IUPAC:(1R,3aS,3bR,4R,7S,9aR,9bS,11aS)-1-ethynyl-9a,11a-dimethyl-1H,2H,3H,3aH,3bH,4H,6H,7H,8H,9H,9aH,9bH,10H,11H,11aH-cyclopenta[a]phenanthrene-1,4,7-triol
IUPAC:(1R,3aS,3bR,4R,7S,9aR,9bS,11aS)-1-ethynyl-9a,11a-dimethyl-1H,2H,3H,3aH,3bH,4H,6H,7H,8H,9H,9aH,9bH,10H,11H,11aH-cyclopenta[a]phenanthrene-1,4,7-triol