(2E,4E,6Z,8E)-methyl 3,7-dimethyl-9-(2,6,6-trimethyl-3-oxocyclohex-1-en-1-yl)nona-2,4,6,8-tetraenoate; 4-Keto all-trans-Retinoic Acid Methyl Ester
(2E,4E,6Z,8E)-methyl 3,7-dimethyl-9-(2,6,6-trimethyl-3-oxocyclohex-1-en-1-yl)nona-2,4,6,8-tetraenoate; 4-Keto all-trans-Retinoic Acid Methyl Ester