CheckVegan
Open Vegan Ingredient Database

Is Trypan Blue vegan?

Trypan Blue

Vegan Vegan
Vegetarian Vegetarian

Trypan Blue is a synthetic azo dye used as a direct dye for cotton textiles and, in biosciences, as a vital stain to selectively colour dead tissues or cells blue, enabling cell viability assessment. It is produced entirely from synthetic precursors.

Also known as CI Direct Blue 6, Direct Blue 14, Niagara Blue 3B, Tetrasodium 3,3'-[[1,1'-biphenyl]-4,4'-diylbis(azo)]bis[5-amino-4-hydroxynaphthalene-2,7-disulphonate]
INCI name Trypan Blue
CAS number 72-57-1
EC number 220-012-1
CI number CI 23850
CosIng ID 30015
Last verified Needs verification (help us verify this ingredient)

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.

Report an issue