Rhodoxanthin
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IUPAC name (4E)-3,5,5-Trimethyl-4-[(2E,4E,6E,8E,10E,12E,14E,16E,18E)-3,7,12,16-Tetramethyl-18-(2,6,6-trimethyl-4-oxo-1-cyclohex-2-enylidene)octadeca-2,4,6,8,10,12,14,16-octaenylidene]-1-cyclohex-2-enone | |
Other names
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Identifiers | |
CAS Number |
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3D model (JSmol) |
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ChemSpider |
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E number | E161f (colours) |
KEGG |
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PubChem CID |
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UNII |
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CompTox Dashboard (EPA) |
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InChI
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Properties | |
Chemical formula | C40H50O2 |
Molar mass | 562.82 g/mol |
Appearance | Purple crystals |
Melting point | 219 °C (426 °F; 492 K) |
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa). N verify (what is YN ?) Infobox references |
Chemical compound
Rhodoxanthin is a xanthophyll pigment with a purple color that is found in small quantities in a variety of plants including Taxus baccata and Lonicera morrowii. It is also found in the feathers of some birds.[1] As a food additive it is used under the E number E161f as a food coloring. It is not approved for use in the EU[2] or US; however, it is approved in Australia and New Zealand[3] (where it is listed under its INS number 161f).
References
- ^ a b Merck Index, 11th Edition, 8196.
- ^ 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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