CheckVegan

Is Acid Black 2 vegetarian?

Acid Black 2

Vegetarian Vegetarian
Vegan Vegan

CI 50420 is a sulfonated nigrosine colourant, a water-soluble anionic dye derived from nigrosin, used as a black colourant.

Also known as Acid Black 2, CI Acid Black 2, Nigrosin Base, Nigrosin WS, Nigrosinbase, Nigrosine, Säureschwarz 2, Sulfonated Nigrosine, Sulfonated nigrosine color
INCI name Acid Black 2
CAS number 8005-03-6
CI number CI 50420
CosIng ID 32778
Last reviewed 9 July 2026

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

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