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| Erythrosine | |
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| IUPAC name | 2-(6-hydroxy-2,4,5,7-tetraiodo- 3-oxo-xanthen-9-yl)benzoic acid |
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| Properties | |
| Molecular formula | C20H6I4Na2O5 |
| Molar mass | 879.86 g/mol |
| Except where noted otherwise, data are given for materials in their standard state (at 25 °C, 100 kPa) Infobox references |
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Erythrosine (tetraiodofluorescein) is a cherry-pink coal-based fluorone food dye. Its maximum absorbance is at 530 nm1 in an aqueous solution, and it is subject to photodegradation.citation needed
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Uses
It is used as a food dye, in printing inks, as a biological stain, a dental plaque disclosing agent and a radiopaque medium. Although erythrosine has been implicated as a carcinogen,2unreliable source? it is commonly used in sweets and foods marketed to children such as candies, popsicles, cake frosting and cake-decorating gels.34 It is also used to color pistachio shells.5 While commonly used in most countries of the world, erythrosine is rarely used in the United States due to its known hazards,6 with Allura Red AC (Red #40) being generally used instead. However, Red #40 is banned in many European countries due to the fact that it is an azo dye.
Classification
It is listed under the following number systems:
- FD&C Red No. 3
- E number E127 (Food Red 14)
- Color Index no. 45430 (Acid Red 51)
- Indian Standards No. 1697
References
- ^ Food Color Additives
- ^ Do You Eat Food With Any Of These 9 Cancer-Causing Chemicals?
- ^ U.S. FDA Food Color Facts
- ^ Red40 Website
- ^ Food Product Design Article
- ^ Studies on Food Dyes
External links
- Bureau of Indian Standards: List of Indian Standards under mandatory certification
- Some more details, other common names
Wikipedia content modification information:
- This page was last modified on 17 December 2008, at 20:37.
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