IUPAC:(1R,3aS,3bR,7E,9aR,9bS,11aS)-11a-ethyl-1-ethynyl-7-(hydroxyimino)-1H,2H,3H,3aH,3bH,4H,5H,7H,8H,9H,9aH,9bH,10H,11H,11aH-cyclopenta[a]phenanthren-1-yl acetate
IUPAC:(1R,3aS,3bR,7E,9aR,9bS,11aS)-11a-ethyl-1-ethynyl-7-(hydroxyimino)-1H,2H,3H,3aH,3bH,4H,5H,7H,8H,9H,9aH,9bH,10H,11H,11aH-cyclopenta[a]phenanthren-1-yl acetate