Methyl-(9-cis)-hydrogen-6,6'-diapo-.psi.,.psi.-carotindioat Torularhodin Canthaxanthin 6,6'-Diapo-.psi.,.psi.-carotindisure β,β-Carotin (3R,3'R)-β,β-Carotin-3,3'-diol β,β-Carotin-4-on Ethyl-8'-apo-β-caroten-8'-oat psi,psi-Carotin (3S,3'S)-3,3'-Dihydroxy-β,β-carotin-4,4'-dion