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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 nm[1] 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,[2]unreliable source? it is commonly used in sweets and foods marketed to children such as candies, popsicles, cake frosting and cake-decorating gels.[3][4] 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
