Is Azure C vegan?

Azure C

Vegan

Azure C is a cationic thiazine dye used as a biological stain in histology and cytology, closely related to methylene blue and other members of the azure dye series. It is used in the staining of nucleic acids and blood smears.

Also known as Methylene azure C
CAS number 531-57-7
CI number CI 52002
Last reviewed 3 June 2026

Sources

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