2-[(1e,3e,5e,7e)-9-[(2e,4e,6e,8e)-3,7-dimethyl-9-(2,6,6-trimethylcyclohexen-1-yl)nona-2,4,6,8-tetraenoxy]-3,7-dimethylnona-1,3,5,7-tetraenyl]-1,3,3-trimethylcyclohexene