Is Chromium, 3-hydroxy-4-[(2-hydroxy-1-naphthalenyl)azo]-7-nitro-1-naphthalenesulphonic acid complex (CI 15711) vegan?

Acid Black 52 is also known as Chromium, 3-hydroxy-4-[(2-hydroxy-1-naphthalenyl)azo]-7-nitro-1-naphthalenesulphonic acid complex (CI 15711).

Acid Black 52 is a synthetic azo dye used to colour textile fibres such as wool, silk, and polyamide. It is assigned the Colour Index number CI 15711 and is a fully synthetic compound with no animal-derived components.

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