Is Oxidation Base 21 vegan?

Picramic Acid is also known as Oxidation Base 21.

Picramic acid, also known as 2-amino-4,6-dinitrophenol, is a synthetic organic compound used as a dye intermediate, notably in hair dye formulations. It is produced by chemical synthesis from picric acid and is a red crystalline solid that is toxic and explosive in concentrated form.

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