13-cis-Capsanthin
IUPAC 名称
(2E,4E,6E,8E,10E,12Z,14E,16E,18E)-1-[(1R,4S)-4-hydroxy-1,2,2-trimethylcyclopentyl]-19-[(4R)-4-hydroxy-2,6,6-trimethylcyclohex-1-en-1-yl]-4,8,13,17-tetramethylnonadeca-2,4,6,8,10,12,14,16,18-nonaen-1-one
描述
13-cis-capsanthin is a member of the class of compounds known as xanthophylls. Xanthophylls are carotenoids containing an oxygenated carotene backbone. Carotenes are characterized by the presence of two end-groups (mostly cyclohexene rings, but also cyclopentene rings or acyclic groups) linked by a long branched alkyl chain. Carotenes belonging form a subgroup of the carotenoids family. Xanthophylls arise by oxygenation of the carotene backbone. 13-cis-capsanthin is practically insoluble (in water) and an extremely weak acidic compound (based on its pKa). 13-cis-capsanthin can be found in a number of food items such as green bell pepper, pepper (c. annuum), red bell pepper, and yellow bell pepper, which makes 13-cis-capsanthin a potential biomarker for the consumption of these food products.
异构
O[C@H]1CC(C)(C)[C@@](C)(C1)C(=O)\C=C\C(\C)=C\C=C\C(\C)=C\C=C\C=C(\C)/C=C/C=C(\C)/C=C/C1=C(C)C[C@@H](O)CC1(C)C
InChI标识符
InChI=1S/C40H56O3/c1-29(17-13-19-31(3)21-23-36-33(5)25-34(41)26-38(36,6)7)15-11-12-16-30(2)18-14-20-32(4)22-24-37(43)40(10)28-35(42)27-39(40,8)9/h11-24,34-35,41-42H,25-28H2,1-10H3/b12-11+,17-13+,18-14+,23-21+,24-22+,29-15-,30-16+,31-19+,32-20+/t34-,35+,40+/m1/s1
键
VYIRVAXUEZSDNC-JXCBCDSLSA-N