Is Meldola Blue vegan?

Meldola Blue

Vegan

Meldola Blue is a synthetic oxazine dye named after the British chemist Raphael Meldola. It is used as a biological stain in histology and as a redox mediator in electrochemical biosensors. It is also known as Phenylene Blue and Basic Blue 6.

Also known as Basic Blue 6, Phenylene Blue
CAS number 966-62-1
CI number CI 51175
Last reviewed 3 June 2026

Sources

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