CheckVegan

Is Acid Yellow 11 vegetarian?

Acid Yellow 11

Vegetarian Vegetarian
Vegan Vegan

CI 18820 is a synthetic monoazo colourant, sodium 4-(3-hydroxy-5-methyl-4-phenylazopyrazol-2-yl)benzenesulphonate, used as a colourant.

Also known as Acid Yellow 11, Flavazine L, Sodium 4-(3-hydroxy-5-methyl-4-phenylazopyrazol-2-yl)benzenesulphonate
INCI name Acid Yellow 11
CAS number 6359-82-6
EC number 228-808-0
CI number CI 18820
CosIng ID 32735
Last reviewed 9 July 2026

An ingredient is considered vegetarian if it avoids components derived from killing an animal.

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