Synonyms: 3-Ethyl-6-[(2E,5E,7E,11E)-10-hydroxy-3,7,9,11-tetramethyltrideca-2,5,7,11-tetraen-1-yl]-2-methoxy-5-methyl-4H-pyran-4-one;4H-Pyran-4-one, 3-ethyl-6-[(2E,5E,7E,11E)-10-hydroxy-3,7,9,11-tetramethyl-2,5,7,11-tridecatetraen-1-yl]-2-methoxy-5-methyl-