3-(hydroxymethyl)-7-methylocta-2,6-dienoic acid

3,7-二甲基-6-辛烯酸甲酯

(2E)-3,7-二甲基-2,6-辛二烯酸

2,7-dimethyloct-6-en-3-ol

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