Is Sodium 2-[(2-hydroxynaphthyl)azo]naphthalenesulphonate vegan?

Pigment Red 49 is also known as Sodium 2-[(2-hydroxynaphthyl)azo]naphthalenesulphonate.

A synthetic azo dye, also known as CI 15630 (Acid Red 88 / Ponceau), produced by chemical synthesis and available as soluble salts or insoluble metal lakes/pigments.

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