CheckVegan

Is Acid Green 22 vegetarian?

Acid Green 22

Vegetarian Vegetarian
Vegan Vegan

CI 42170 is a synthetic triphenylmethane colourant, a sodium salt of a chlorophenyl-methylene cyclohexadienylidene ammonium sulphonate compound, used as a colour additive.

Also known as Hydrogen [4-[(2-chlorophenyl)[4-[ethyl(3-sulphonatobenzyl)amino]-o-tolyl]methylene]-3-methylcyclohexa-2,5-dien-1-ylidene](ethyl)(3-sulphonatobenzyl)ammonium, sodium salt
INCI name Acid Green 22
CAS number 5863-51-4
EC number 227-513-4
CI number CI 42170
CosIng ID 32758
Last reviewed 14 July 2026

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

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