INS No. 102
FD&C Yellow No. 5
CAS No. 1934-21-0
Tartrazine is a monoazo dyes that occurs as a yellow-orange powder or granules. It is principally the trisodium salt of 4,5-dihydro-5-oxo-1-(4-sulfophenyl) -4- [4-sulfophenyl-azo] -1H-pyrazole -3-carboxylic acid and may be converted to the corresponding aluminum lake.
Tartrazine provides a lemon-yellow color and can be used in drugs, cosmetics, and foods, including dietary supplements, beverages, frozen treats, powder mixes, gelatin products, candies, icings, jellies, spices, dressings, sauces, baked goods and dairy products.
Tartrazine (INS No. 102) is added to foods and beverages at concentrations up to a maximum permitted level (MPL) as established by the Codex Alimentarius Commission. There are currently 8 food categories for which MPLs for tartrazine have been adopted in the General Standard for Food Additives. Approximately 70 other applications of tartrazine as a color additive in foods and beverages have been proposed and are pending adoption, following completion of the review and comments process.
JECFA (Joint FAO/WHO Expert Committee on Food Additives) (2016) Evaluation of certain food additives (eighty-second report of the Joint FAO/WHO Expert Committee on Food Additives). WHO Technical Report series, 100. Available online
EFSA (2009) Scientific Opinion on the re-evaluation of Tartrazine (E 102) on request from the European Commission. EFSA Journal, 7(11), 1331, 52 pp. Available online