IUPAC: (1R,3aS,3bS,9aR,9bS,10S,11aS)-1-{2-[(2,2-dimethylpropanoyl)sulfanyl]acetyl}-1,10-dihydroxy-9a,11a-dimethyl-1H,2H,3H,3aH,3bH,4H,5H,7H,8H,9H,9aH,9bH,10H,11H,11aH-cyclopenta[a]phenanthren-7-one
IUPAC: (1R,3aS,3bS,9aR,9bS,10S,11aS)-1-{2-[(2,2-dimethylpropanoyl)sulfanyl]acetyl}-1,10-dihydroxy-9a,11a-dimethyl-1H,2H,3H,3aH,3bH,4H,5H,7H,8H,9H,9aH,9bH,10H,11H,11aH-cyclopenta[a]phenanthren-7-one