Is Direct Blue 53 vegetarian?
Direct Blue 53
Vegetarian
Vegetarian
Vegan
Vegan
Evans Blue is a synthetic azo dye used in biological and medical research as a staining agent and as a tracer for measuring plasma volume in living organisms. It is produced entirely by synthetic chemical processes.
| Also known as | Azovan Blue, Direct Blue 53 |
|---|---|
| CAS number | 314-13-6 |
| CI number | CI 23860 |
| Last reviewed | 3 June 2026 |
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.