3,7,12,16-tetramethyl-1,18-bis(2,6,6-trimethyl-4-oxo-2-cyclohexen-1-yl)-1,3,5,7,9,11,13,15,17-octadecanonaene
pyridine
3,3'-di-keto-β-carotene
piperidine
4-Hydroxy-4-[(E)-5-(1-methoxy-1-methyl-ethoxy)-3-methyl-pent-3-en-1-ynyl]-3,5,5-trimethyl-cyclohex-2-enone