IUPAC:2-[(1Z,2S,3aS,3bS,5aS,6S,9aS,9bS,10R,11aR)-2-(acetyloxy)-10-hydroxy-3a,3b,6,9a-tetramethyl-7-oxo-hexadecahydro-1H-cyclopenta[a]phenanthren-1-ylidene]-6-methylhept-5-enoic acid
IUPAC:2-[(1Z,2S,3aS,3bS,5aS,6S,9aS,9bS,10R,11aR)-2-(acetyloxy)-10-hydroxy-3a,3b,6,9a-tetramethyl-7-oxo-hexadecahydro-1H-cyclopenta[a]phenanthren-1-ylidene]-6-methylhept-5-enoic acid