Is 1,3-Naphthalenedisulfonic acid, 7-hydroxy-8-[[4-(phenylazo)phenyl]azo]-,disodium salt (CI 27290) vegan?

Acid Red 73 is also known as 1,3-Naphthalenedisulfonic acid, 7-hydroxy-8-[[4-(phenylazo)phenyl]azo]-,disodium salt (CI 27290).

Cotton Scarlet is a synthetic azo dye classified under the Colour Index as Acid Red 73. It is used as a textile dye, particularly for dyeing cellulosic fibres such as cotton. It is a fully synthetic compound with no animal-derived components.

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