Is Acid Blue 83 vegan?
Acid Blue 83
Coomassie Brilliant Blue is the name of two similar triphenylmethane dyes (R-250 and G-250) originally developed for the textile industry and now widely used for staining proteins in analytical biochemistry. The name "Coomassie" is a registered trademark of Imperial Chemical Industries. The G-250 variant differs from R-250 by the addition of two methyl groups.
| Also known as | Acid Blue 83, Brilliant Blue R, Coomassie Brilliant Blue, Coomassie Brilliant Blue G-250, Coomassie Brilliant Blue R-250 |
|---|---|
| CAS number | 6104-59-2 |
| EC number | 228-077-7 |
| CI number | CI 42660 |
| Last reviewed | 3 June 2026 |
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.
