SMILES: CC1=C(C(CCC1=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)CCC2(C)C)C)\\C)\\C)/C)/C
Description: The molecule is a carotenone that consists of beta,beta-carotene bearing two oxo substituents at positions 4 and 4'. It has a role as a biological pigment, a food colouring, a fungal metabolite and an Escherichia coli metabolite. It derives from a hydride of a beta-carotene.