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Is Calcofluor White vegan?

Calcofluor White

Vegan

Calcofluor White is a synthetic fluorescent brightening agent that binds to beta-1,3 and beta-1,4 polysaccharides in the cell walls of fungi, plants, and protozoa. It is widely used in biology for staining fungal and plant cell walls, and in medicine for the identification of fungi in biopsy specimens.

Also known as CFW, Fluorescent Brightener 28
CAS number 4193-55-9
CI number CI 40622
Last reviewed 3 June 2026

Sources

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