Is Clayton Yellow vegan?

Direct Yellow 9 is also known as Clayton Yellow.

Titan Yellow is a synthetic triazene dye with the formula C28H19N5Na2O6S4, used as a fluorescent indicator and stain in microscopy and for colorimetric determination of various compounds. As an acid-base indicator, it changes colour from yellow to red between pH 12 and pH 13.

View full details page for Direct Yellow 9

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.