Citranaxanthin
From Wikipedia, the free encyclopedia
Citranaxanthin | |
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IUPAC name | (3E,5E,7E,9E,11E,13E,15E,17E,19E)-5,9,14,18-Tetramethyl-20-(2,6,6-trimethyl-1-cyclohexen-1-yl)-3,5,7,9,11,13,15,17,19-eicosanonaen-2-one |
Other names | E161i |
Identifiers | |
CAS number | [3604-90-8] |
SMILES | C/C(/C=C/C1=C(C)CCC(C)(C)C1)=C\C=C\C(C)=C\C=C\C=C(C)\C=C\C=C(C)\C=C\C(C)=O |
Properties | |
Molecular formula | C33H44O |
Molar mass | 456.70 g/mol |
Appearance | Deep violet crystals |
Solubility in water | Insoluble |
Except where noted otherwise, data are given for materials in their standard state (at 25 °C, 100 kPa) Infobox disclaimer and references |
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.[1] It is used as an animal feed additive to impart a yellow color to chicken fat and egg yolks.[2]
[edit] References
- ^ Citranaxanthin, Food and Agriculture Organization of the United Nations
- ^ http://www.inchem.org/documents/jecfa/jecmono/v22je11.htm Citranaxanthin], International Programme on Chemical Safety
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