163564-92-9 2H-Pyran-2-one, 5,6-dihydro-6-((1E,3Z,5R,7E,9E,11R)-11-hydroxy-3,5,7-trimethyl-11-((2S,4R,5S,6S)-tetrahydro-4-hydroxy-5-methyl-6-((1E)-1-propenyl)-2H-pyran-2-yl)-1,3,7,9-undecatetraenyl)-, (6R)- Ratjadon Ratjadone A