Is Sudan red 5B vegan?

Solvent Red 27 is also known as Sudan red 5B.

Oil Red O is a lysochrome (fat-soluble) diazo dye used for staining neutral triglycerides and lipids on frozen sections and some lipoproteins on paraffin sections. It appears as a red powder with an absorbance maximum at 518 nm. It is a synthetic organic compound with no animal-derived components.

View full details page for Solvent Red 27

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.