Rubixanthin
Rubixanthin, or natural yellow 27, is a natural xanthophyll pigment with a red-orange color found in rose hips. As a food additive it used under the E number E161d as a food coloring; it is not approved for use in the USA or EU[2] but is approved in Australia and New Zealand[3] where it is listed as 161d.
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IUPAC name
(1R)-4-[(1E,3E,5E,7E,9E,11E,13E,15E,17E,19E)-3,7,12,16,20,24-Hexamethylpentacosa-1,3,5,7,9,11,13,15,17,19,23-undecaenyl]-3,5,5-trimethylcyclohex-3-en-1-ol | |
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Identifiers | |
3D model (JSmol) |
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ChEBI | |
ChemSpider | |
E number | E161d (colours) |
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Properties | |
C40H56O | |
Molar mass | 552.85 g/mol |
Appearance | Red-orange crystals |
Melting point | 160 °C (320 °F; 433 K) |
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa). | |
Infobox references | |
References
- Merck Index, 11th Edition, 8265.
- UK Food Standards Agency: "Current EU approved additives and their E Numbers". Retrieved 2011-10-27.
- Australia New Zealand Food Standards Code"Standard 1.2.4 - Labelling of ingredients". Retrieved 2011-10-27.
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