Is Acid Black 2 vegan?
Acid Black 2
Vegan
Vegan
Vegetarian
Vegetarian
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 vegan if it contains no animal-derived components at any point in its production.
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.
