Is Monoazo vegan?

Monoazo

Unconfirmed

Monoazo refers to a class of synthetic azo dyes and pigments characterised by a single azo group (-N=N-), used as colourants in cosmetics, food, and industrial applications. They are synthesised from petrochemical or coal tar precursors. Some may be processed through bone char filtration, introducing potential non-vegan concerns depending on manufacturing.

Also known as arylide yellow, azo dye, azo pigment, Hansa yellow, monoazo dye, monoazo yellow
Last reviewed 3 June 2026

Sources

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