2H-Pyran-2-one,6-[(1E,3Z,5R,7E,9E,11R,13S,14R,15R)-3-ethyl-14-hydroxy-5,9,11,13,15-pentamethyl-12-oxo-1,3,7,9-heptadecatetraenyl]-5,6-dihydro-, (6R)-
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