Is Vat Yellow 4 vegan?

Dibenzpyrenequinone is a synthetic vat dye appearing as a bright yellow solid. It is produced by cyclization of 1,5-dibenzoylnaphthalene and serves as a precursor to Vat Orange 1. It is used for dyeing cellulosic fibres.

An ingredient is considered vegan if it contains no animal-derived components at any point in its production.

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