(6S,3'S,5'R,6'R)-6,3',5'-Trihydroxy-4,5,6',7'-tetradehydro-7,8,5',6'-tetrahydro-beta,beta-carotene-3,8-dione 100667-78-5 Amarouciaxanthin A beta,epsilon-Carotene, 6,7-didehydro-5,6,7',8'-tetrahydro-3,5,6'-trihydroxy-3',8'-dioxo-, (3S,5R,6R,6'S)-