173792-73-9 2,4-Pentadienoic acid, 3-methyl-5-(2-((1E)-2-(2,6,6-trimethyl-1-cyclohexen-1-yl)ethenyl)-1-cyclohexen-1-yl)-, (2E,4E)- 2,4-Pentadienoic acid, 3-methyl-5-(2-(2-(2,6,6-trimethyl-1-cyclohexen-1-yl)ethenyl)-1-cyclohexen-1-yl)-, (E,E,E)- Ro 25-6603