Synonyms: 3-Dehydroretinol(6CI,7CI); 3-Dehydroretinol, all-trans- (8CI);(all-E)-3,7-Dimethyl-9-(2,6,6-trimethyl-1,3-cyclohexadien-1-yl)-2,4,6,8-nonatetraen-1-ol;2,4,6,8-Nonatetraen-1-ol,3,7-dimethyl-9-(2,6,6-trimethyl-1,3-cyclohexadien-1-yl)-, (all-E)-;3,4-Dehydroretinol; 3,4-Didehydroretinol; Dehydroretinol; Vitamin A2;all-trans-3,4-Didehydroretinol; all-trans-3-Dehydroretinol