← Home

Is FD&C Yellow 5 vegan?

FD&C Yellow 5

Vegan

FD&C Yellow 5, commonly known as Tartrazine, is a synthetic lemon-yellow azo dye derived from coal tar. It is certified by the FDA for use in food, drugs, and cosmetics and is one of the most widely used yellow food colorants.

Also known as Acid Yellow 23, Acid yellow T, CI19140, FD&C Yellow 5, FD&C Yellow No. 5, Food Yellow 4, Hydrazine yellow, Lemon Yellow, Tartrazine, Trisodium 1-(4-sulfonatophenyl)-4-(4-sulfonatophenylazo)-5-pyrazolone-3-carboxylate, Yellow 5
E number E102
CAS number 1934-21-0
EC number 217-699-5
CI number CI 19140
Last reviewed 29 May 2026

Classifications are made to the best of our knowledge based on available scientific and regulatory sources. We cannot guarantee the accuracy of every entry, errors in the sources we draw from can always occur. This tool also cannot account for cross-contamination, which depends entirely on individual suppliers and producers. If you believe a classification is incorrect, you can report an issue.