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Is Isosulfan Blue vegan?

Isosulfan Blue is a synthetic triarylmethane contrast agent used in medicine to delineate lymphatic vessels during lymphography procedures. It is sold under the brand name Lymphazurin, among others. It is also known by its Colour Index designation Acid Blue 1.

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.