beta-Carotene,(15Z)-

(1E,3E)-3-methyl-1-[2,6,6-trimethylcyclohex-1-enyl]hexa-1,3,5-triene

(1E,3E,5E)-2-(3,7-dimethylocta-1,3,5,7-tetraenyl)-1,3,3-trimethylcyclohex-1-ene

(E)-2-(3-methylbuta-1,3-dienyl)-1,3,3-trimethyl-cyclohex-1-ene

维生素A