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Citranaxanthin

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Citranaxanthin
Skeletal formula of citranaxanthin
Space-filling model of the citranaxanthin molecule
Names
IUPAC name 5′-Apo-β,χ-caroten-6(5H)-one
Systematic IUPAC name (3E,5E,7E,9E,11E,13E,15E,17E,19E)-5,9,14,18-Tetramethyl-20-(2,6,6-trimethyl-1-cyclohex-1-en-1-yl)icosa-3,5,7,9,11,13,15,17,19-nonaen-2-one
Other names
  • E161i
Identifiers
CAS Number
3D model (JSmol)
ChEBI
ChemSpider
ECHA InfoCard 100.020.693 Edit this at Wikidata
EC Number
  • 222-762-5
E number E161i (colours)
PubChem CID
UNII
CompTox Dashboard (EPA)
InChI
  • InChI=1/C33H44O/c1-26(16-11-18-28(3)21-23-31(6)34)14-9-10-15-27(2)17-12-19-29(4)22-24-32-30(5)20-13-25-33(32,7)8/h9-12,14-19,21-24H,13,20,25H2,1-8H3Key: PRDJTOVRIHGKNU-UHFFFAOYAC
SMILES
  • CC1(C)CCCC(C)=C1C=CC(C)=CC=CC(C)=CC=CC=C(C)C=CC=C(C)C=CC(C)=O
Properties
Chemical formula C33H44O
Molar mass 456.714 g·mol
Appearance Deep violet crystals
Solubility in water Insoluble
Except where otherwise noted, data are given for materials in their standard state (at 25 °C , 100 kPa). Infobox references
Chemical compound

Citranaxanthin is a carotenoid pigment used as a food additive under the E number E161i as a food coloring. There are natural sources of citranaxanthin, but it is generally prepared synthetically. It is used as an animal feed additive to impart a yellow color to chicken fat and egg yolks.

References

  1. Citranaxanthin Archived 2012-10-17 at the Wayback Machine, Food and Agriculture Organization of the United Nations
  2. Citranaxanthin, International Programme on Chemical Safety
Carotenoids
Carotenes (C40)
Xanthophylls (C40)
Apocarotenoids (C<40)
Vitamin A retinoids (C20)
Retinoid drugs
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