erythrosine

1. (chemistry) tetraiodo-fluorescein, a cherry-pink fluorone used as a food colouring, in printing inks, and as a biological stain, a dental plaque disclosing agent and a radiopaque medium.Examples: "The sprinkles had the red food coloring E127, or erythrosine. E127 is only permitted for use in cocktail cherries and candied cherries in the UK and the EU, according to a statement from West Yorkshire Trading Standards sent to CNN Thursday."; "In 1990, the FDA banned Red No. 3, also known as erythrosine, from cosmetics and topical drugs under the Delaney Clause, because the chemical was shown to be carcinogenic at high doses in tests on lab rats."; "Red dye No. 3: red 3, FD&C Red No. 3 or erythrosine"Synonyms: E127 when used as a food colouringcountableuncountable