has role carotenoid beta-end group beta-carotene 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) 536.438 536.87264 A cyclic carotene obtained by dimerisation of all-trans-retinol. A strongly-coloured red-orange pigment abundant in plants and fruit and the most active and important provitamin A carotenoid. BETA-CAROTENE Beilstein:1917416 C40H56 CAS:7235-40-7 CC(\C=C\C=C(C)\C=C\C1=C(C)CCCC1(C)C)=C/C=C/C=C(C)/C=C/C=C(C)/C=C/C1=C(C)CCCC1(C)C CHEBI:10355 CHEBI:12392 CHEBI:17579 CHEBI:22834 CHEBI:40987 COMe:MOL000093 Drug_Central:345 HMDB:HMDB0000561 InChI=1S/C40H56/c1-31(19-13-21-33(3)25-27-37-35(5)23-15-29-39(37,7)8)17-11-12-18-32(2)20-14-22-34(4)26-28-38-36(6)24-16-30-40(38,9)10/h11-14,17-22,25-28H,15-16,23-24,29-30H2,1-10H3/b12-11+,19-13+,20-14+,27-25+,28-26+,31-17+,32-18+,33-21+,34-22+ KEGG:C02094 KEGG:D03101 KNApSAcK:C00000919 LIPID_MAPS_instance:LMPR01070000 LIPID_MAPS_instance:LMPR01070001 MetaCyc:CPD1F-129 OENHQHLEOONYIE-JLTXGRSLSA-N PDBeChem:BCR PMID:11171227 PMID:11182771 PMID:11332447 PMID:11359610 PMID:11382814 PMID:11567548 PMID:11677037 PMID:11714348 PMID:11962062 PMID:12081834 PMID:12891827 PMID:14658721 PMID:14764912 PMID:14976384 PMID:14997360 PMID:15113067 PMID:15333155 PMID:15695449 PMID:15789045 PMID:15909543 PMID:15949680 PMID:15949683 PMID:16036331 PMID:16087476 PMID:16338959 PMID:16563447 PMID:17004738 PMID:17625873 PMID:17708644 PMID:17851775 PMID:18429004 PMID:18766464 PMID:18767554 PMID:18794175 PMID:19480350 PMID:19574250 PMID:19669835 PMID:19703237 PMID:19852884 PMID:19888275 PMID:19896667 PMID:19937581 PMID:20074992 PMID:20515074 PMID:22079732 PMID:22309480 PMID:22428124 PMID:22489215 PMID:22534340 PMID:22575730 Reaxys:1917416 Wikipedia:Beta_Carotene all-trans-beta-carotene beta,beta-carotene beta-Carotene beta-Karotin chebi_ontology biological pigment cyclic carotene plant metabolite