Rhodoxanthin
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| Rhodoxanthin[1] | ||
|---|---|---|
 | ||
| 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 •4',5'-Didehydro-retro-β-carotene-3,3'-dione | ||
| Identifiers | ||
| CAS number | 116-30-3  | |
| PubChem | 5281251 | |
| Jmol-3D images | Image 1 | |
| ||
| Properties | ||
| Molecular formula | C40H50O2 | |
| Molar mass | 562.82 g/mol | |
| Appearance | Purple crystals | |
| Melting point | 219 °C | |
(verify) (what is: / ?)Except where noted otherwise, data are given for materials in their standard state (at 25 °C (77 °F), 100 kPa) | ||
| Infobox references | ||
Rhodoxanthin is a xanthophyll pigment with a purple color that is found in small quantities in a variety plants including Taxus baccata. 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 USA however is approved in Australia and New Zealand[3] (where it is listed under its INS number 161f).
References
- ↑ 1.0 1.1 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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