(2E,4E,6E)-3,7-Dimethyl-7-(tetrahydro-4,4-dimethylthiochroman-6-yl)-2,4,6-heptatrienoic acid 108695-20-1 2,4,6-Octatrienoic acid, 7-(3,4-dihydro-4,4-dimethyl-2H-1-benzothiopyran-6-yl)-3-methyl-, (E,E,E)-