SMILES: C/C(=C\\C=C\\C=C(\\C=C\\C=C(\\C=C\\C=C(\\C=C\\C(=O)C(OC)(C)C)/C)/C)/C)/C=C/C=C(/C=C/C=C(/C=C/C(=O)C(OC)(C)C)\\C)\\C
Description: The molecule is a carotenoid ether that is (3E,3'E)-1,1'-dihydroxy-3,3',4,4'-tetradehydro-1,1',2,2'-tetrahydro-psi,psi-carotene-2,2'-dione in which both hydroxyl hydrogens are substituted by methyl groups. It is a carotenoid ether and a carotenone.