2,6,6-三甲基环己烯-1-羧酸

1,5,5-trimethylcyclohexene

7-methyl-3-methylideneoct-6-enoic acid

3,7-Dimethylocta-3,7-dienoic Acid

2-(4,4-dimethyl-3,7-dioxo-1,2,5,6-tetrahydroinden-2-yl)acetic acid