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.
3,5,5-trimethyl-4-[(1E,3E,5E,7E,9E,11E,13E,15E,17E)-3,7,12,16-tetramethyl-18-(2,6,6-trimethyl-3,4-dioxocyclohexen-1-yl)octadeca-1,3,5,7,9,11,13,15,17-nonaenyl]cyclohex-3-ene-1,2-dione