4H-pyran-4-one, 6-[(1E,3E)-1,3-dimethyl-1,3-pentadienyl]-2-methoxy-3-methyl- 6-[(1E,3E)-1,3-dimethylpenta-1,3-dien-1-yl]-2-methoxy-3-methyl-4H-pyran-4-one InChI=1/C14H18O3/c1-6-9(2)7-10(3)13-8-12(15)11(4)14(16-5)17-13/h6-8H,1-5H3/b9-6+,10-7