2h-pyran-2-one
2H-Pyran-2-one,6-[(1E,3Z,7E,9E)-16-(2,5- dihydro-5-oxo-3-furanyl)-3-ethyl-14- hydroxy-5,9,11,13,15-pentamethyl-12-oxo-1,- 3,7,9-hexadecatetraenyl]-5,6-dihydro-5- methyl-
2H-Pyran-2-one,5,6-dihydro-6-[(1E,3S,4R,6R,7Z,9Z,11E)-3,6,13-trihydroxy-3-methyl-4-(phosphonooxy)-1,7,9,11-tridecatetraenyl]-, monosodium salt, (6R)-