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Template:Chembox E number
IUPAC name 2-(6-hydroxy-2,4,5,7-tetraiodo-
3-oxo-xanthen-9-yl)benzoic acid
3D model (JSmol)
ECHA InfoCard Lua error in Module:Wikidata at line 879: attempt to index field 'wikibase' (a nil value). Lua error in Module:Wikidata at line 879: attempt to index field 'wikibase' (a nil value).
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 disclaimer and references

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].


It is listed under the following number systems:


Template:Not verified It is used as a food dye, in printing inks, as a biological stain, a dental plaque disclosing agent and a radiopaque medium. Although Red #3 has been highly implicated as a carcinogen[2], it is commonly used in sweets and foods marketed to children such as candies, popsicles, cake frosting,[citation needed] and cake-decorating gel.[3] Diamond Foods uses Red #3 to dye pecan shells red in its Blue Diamond line of mixed nuts for cosmetic reasons.[4] It is also used in strawberry Slim-Fast and its generic counterpart.[citation needed] McCormick uses it as well in their "Salad Toppins." Because of the well-known hazards of Red #3[5], Red #40 is much more commonly used by most food manufacturers in USA.[citation needed] Though in most of Europe and the rest of the world Red #3 is preferred over Red #40.[citation needed]


  1. Food Color Additives
  2. [1]
  3. E.g., CakeMate pink, Signature Brands, LLC, Ocala, Florida, USA [Purchased at Harris Teeter grocery, Arlington, Virginia, 4 November 2007]
  4. Blue Diamond Ultra Premium Blend Mixed Nuts, distributed by Diamond Foods, Inc. Stockton, CA
  5. [2]

External links

de:Erythrosin it:Eritrosina hu:Eritrozin nl:Erythrosine