Is Acid Red 29 vegan?

Chromotrope 2R is a synthetic azo dye used as a histological stain and acid-base indicator, classified as Acid Red 29 in the Colour Index. It is also known as Carmoisine 6R and is used in microscopy for staining connective tissue.

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.