IUPAC:(2E,4E,6Z)-8-oxo-8-[(1'S,2S,2'R,7'R,9'R,11'R)-1',2',5'-trimethyl-8'-oxaspiro[oxirane-2,12'-tricyclo[7.2.1.0^{2,7}]dodecan]-5'-en-11'-yloxy]octa-2,4,6-trienoic acid
IUPAC:(2E,4E,6Z)-8-oxo-8-[(1'S,2S,2'R,7'R,9'R,11'R)-1',2',5'-trimethyl-8'-oxaspiro[oxirane-2,12'-tricyclo[7.2.1.0^{2,7}]dodecan]-5'-en-11'-yloxy]octa-2,4,6-trienoic acid