IUPAC:2-[(1Z,2S,3aS,3bS,5S,5aS,6S,9aR,9bS,11aR)-2,5-bis(acetyloxy)-3a,3b,6,9a-tetramethyl-4,7-dioxo-1H,2H,3H,3aH,3bH,4H,5H,5aH,6H,7H,9aH,9bH,10H,11H,11aH-cyclopenta[a]phenanthren-1-ylidene]-6-methylhept-5-enoic acid
IUPAC:2-[(1Z,2S,3aS,3bS,5S,5aS,6S,9aR,9bS,11aR)-2,5-bis(acetyloxy)-3a,3b,6,9a-tetramethyl-4,7-dioxo-1H,2H,3H,3aH,3bH,4H,5H,5aH,6H,7H,9aH,9bH,10H,11H,11aH-cyclopenta[a]phenanthren-1-ylidene]-6-methylhept-5-enoic acid