IUPAC:methyl (3aR,3bS,5aS,7S,9aR,9bS,11aR)-7-(acetyloxy)-2,3b,6,6,9a,11,11a-heptamethyl-1,3-dioxo-1H,2H,3H,3aH,3bH,4H,5H,5aH,6H,7H,8H,9H,9aH,9bH,11aH-cyclopenta[a]phenanthrene-3a-carboxylate
IUPAC:methyl (3aR,3bS,5aS,7S,9aR,9bS,11aR)-7-(acetyloxy)-2,3b,6,6,9a,11,11a-heptamethyl-1,3-dioxo-1H,2H,3H,3aH,3bH,4H,5H,5aH,6H,7H,8H,9H,9aH,9bH,11aH-cyclopenta[a]phenanthrene-3a-carboxylate