Is 1-[(2-Chloro-4-nitrophenyl)azo]-2-naphthol vegan?

Pigment Red 4 is also known as 1-[(2-Chloro-4-nitrophenyl)azo]-2-naphthol.

Pigment Red 4 is a synthetic monoazo organic pigment used to impart red color in cosmetics and other products.

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