CheckVegan

Is HC Yellow No 3 vegetarian?

HC Yellow No 3

Vegetarian Vegetarian
Vegan Vegan

HC Yellow No 3 is a synthetic nitroaniline dye used as a direct hair dye ingredient in cosmetic hair colouring products.

Also known as N1-(Tris(hydroxymethyl))methyl-4-nitro-1,2-phenylenediamine and its salts
INCI name HC Yellow No 3
CAS number 56932-45-7
EC number 260-451-6
CosIng ID 31131
Last reviewed 9 July 2026

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

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.

Report an issue