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Is Alkali Blue vegan?

Alkali Blue (CI 42750) is a synthetic triarylmethane acid dye used in textile dyeing and printing, particularly for silk and wool. It is also known as Alkali Blue 4B, Alkali Blue 5B, and Acid Blue 110.

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.