has role independent continuant carotenoid beta-end derivative ferroptosis inhibitor beta-carotene A cyclic carotene obtained by dimerisation of <i>all</i>-<i>trans</i>-retinol. A strongly-coloured red-orange pigment abundant in plants and fruit and the most active and important provitamin A carotenoid. CHEBI:22834 all-trans-beta-carotene beta,beta-carotene beta-Karotin beta-Carotene CHEBI:12392 CHEBI:40987 CHEBI:10355 1,1'-[(1E,3E,5E,7E,9E,11E,13E,15E,17E)-3,7,12,16-tetramethyloctadeca-1,3,5,7,9,11,13,15,17-nonaene-1,18-diyl]bis(2,6,6-trimethylcyclohexene) BETA-CAROTENE beta,beta-carotene antioxidant cofactor biological pigment cyclic carotene provitamin A mouse metabolite plant metabolite human metabolite