Is Benzidine-Based Azo Dyes vegetarian?

Benzidine-based azo dyes are a class of synthetic dyes containing the R-N=N-R' functional group derived from the carcinogenic aromatic amine benzidine, historically used in textiles and leather but now largely restricted due to toxicity. They are synthetic chemicals, not derived from animals or plants.

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.