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