Xanthophyll

Lutein A carotenoid alcohol widespread in nature. It is present in egg yolk, algae, and petals of yellow flowers, among other sources.

[(Science: physiology) a substance of a strongly marked yellow colour, extracted from the yolk of eggs, and from the tissue of the corpus luteum. Origin: From corpus luteum.

[1. The yellow pigment in the corpus luteum, in the yolk of eggs, or any lipochrome.2. The dried powdered corpora lutea of the hog, formerly used as a progesterone source.

Molecular Formula: C₄₀H₅₆O₂

InChI: InChI=1/C40H56O2/c1-29(17-13-19-31(3)21-23-37-33(5)25-35(41)27-39(37,7)8)15-11-12-16-30(2)18-14-20-32(4)22-24-38-34(6)26-36(42)28-40(38,9)10/h11-25,35-37,41-42H,26-28H2,1-10H3/b12-11+,17-13+,18-14+,23-21+,24-22+,29-15+,30-16+,31-19+,32-20+/t35-,36+,37-/m0/s1

InChIKey: InChIKey=KBPHJBAIARWVSC-RGZFRNHPBY
SMILES: CC(=C\C=C\C=C(C)\C=C\C=C(C)\C=C\C1=C(C)C[C@@H](O)CC1(C)C)/C=C/C=C(C)/C=C/[C@H]2C(C)=C[C@H](O)CC2(C)C

CAS number 127-40-2

Names:
    Bo-Xan
    CHEBI:28838
    Lutein
    lutein
    XANTHOPHYLL
    Xanthophyll
    (1R,4R)-4-[(1E,3E,5E,7E,9E,11E,13E,15E,17E)-18-[(4S)-4-hydroxy-2,6,6-trimethyl-1-cyclohexenyl]-3,7,12,16-tetramethyl-octadeca-1,3,5,7,9,11,13,15,17-nonaenyl]-3,5,5-trimethyl-cyclohex-2-en-1-ol
    (3R,3'R,6S)-4,5-DIDEHYDRO-5,6-DIHYDRO-BETA,BETA-CAROTENE-3,3'-DIOL
    (3R,3'R,6'R)-beta,epsilon-carotene-3,3'-diol
    (3R,3'R,6S)-4,5-DIDEHYDRO-5,6-DIHYDRO-BETA,BETA-CAROTENE-3,3'-DIOL
    127-40-2

Registries:
    PubChem CID 5281243
    Beilstein =2068550
    CAS 127-40-2 (from NIST)
    ChEBI 28838
    chemPDB LUT
    Kegg C08601
    PubChem ID 10318855
    PubChem ID 10794