CheckVegan

Is Acid Green 50 vegan?

Acid Green 50

Vegan Vegan
Vegetarian Vegetarian

Green S (E142, CI 44090) is a synthetic green azo dye used as a food colourant and in cosmetic formulations to provide a bright green colour.

Also known as Acid Green 50, Food green 4, Food Green S, Green S, Hydrogen [4-[4-(dimethylamino)-.alpha.-(2-hydroxy-3,6-disulphonato-1-naphthyl)benzylidene]cyclohexa-2,5-dien-1-ylidene]dimethylammonium, monosodium salt, Hydrogen [4-[4-(dimethylamino)-alpha-(2-hydroxy-3,6-disulphonato-1-naphthyl)benzylidene]cyclohexa-2,5-dien-1-ylidene]dimethylammonium monosodium salt, Lissamine Green B
INCI name Acid Green 50
E number E142
INS number 142
CAS number 3087-16-9
EC number 221-409-2
CI number CI 44090
CosIng ID 32763
Last reviewed 22 April 2026

An ingredient is considered vegan if it contains no animal-derived components at any point in its production.

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