Rhodoxanthin
From Wikipedia, the free encyclopedia
| Rhodoxanthin[1] | |
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(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 |
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Other names
•4',5'-Didehydro-retro-β-carotene-3,3'-dione |
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| Identifiers | |
| CAS number | 116-30-3  |
| PubChem | 5281251 |
| Jmol-3D images | Image 1 |
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| 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, 100 kPa) |
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| 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).
[edit] References
- ^ a b Merck Index, 11th Edition, 8196.
- ^ UK Food Standards Agency: "Current EU approved additives and their E Numbers". http://www.food.gov.uk/safereating/chemsafe/additivesbranch/enumberlist. Retrieved 2011-10-27.
- ^ Australia New Zealand Food Standards Code"Standard 1.2.4 - Labelling of ingredients". http://www.comlaw.gov.au/Details/F2011C00827. Retrieved 2011-10-27.
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