methyl 7,11-dimethyl-3-oxododeca-6,10-dienoate

ethyl 2,3,7,11-tetramethyldodeca-2,6,10-trienoate

2,3,7,11-tetramethyldodeca-2,6,10-trien-1-ol

2,6,10-trimethylundeca-1,5,9-triene

(5E,9E,13E)-6,10,14,18-四甲基十九碳-5,9,13,17-四烯-2-酮