SMILES: CC1=C(C(CC(=O)C1=O)(C)C)/C=C/C(=C/C=C/C(=C/C=C/C=C(/C=C/C=C(/C=C/C2=C(C(=O)C(=O)CC2(C)C)C)\\C)\\C)/C)/C
Description: The molecule is a carotenone that consists of beta,beta-carotene bearing four oxo substituents at positions 2, 2', 4 and 4'. It derives from a hydride of a beta-carotene.