Tartrazine is a synthetic lemon yellow azo dye primarily used as a food coloring. It is also known as E number E102, C.I. 19140, FD&C Yellow 5, Acid Yellow 23, Food Yellow 4, and Trisodium 1-(4-sulfonatophenyl)-4-(4-sulfonatophenylazo)-5-pyrazolone-3-carboxylate). Tartrazine is a synthetic organic chemical.

Application

Tartrazine provides a lemon-yellow color when used in foods, drugs, and cosmetics. For food, it is used to color confections, cereals, snack foods, beverages, condiments, baked goods, powdered mixes, gelatine products, icings, jellies, spices, dressings, sauces, and yogurt.