(2E,4E)-3-methyl-5-(2,6,6-trimethylcyclohex-1-enyl)penta-2,4-dienoic acid

3-methyl-5t-(2,6,6-trimethyl-cyclohex-1-enyl)-penta-2t,4-dienoic acid methyl ester

3,4-二去氢维甲酸

(2E,4E)-3-methyl-5-(2,6,6-trimethylcyclohexa-1,3-dienyl)penta-2,4-dien-1-ol

(2E,4E)-3-甲基-5-(2,6,6-三甲基-1,3-环己二烯-1-基)-2,4-戊二烯醛