Is Vat Orange 1 vegan?

Vat Orange 1

Vegan

Vat Orange 1 is a synthetic orange-hued vat dye prepared by dibromination of dibenzpyrenequinone (Vat Yellow 4). It is used in textile dyeing and carries the Colour Index designation CI 59105.

Also known as Vat Golden Yellow RK
CAS number 1324-11-4
CI number CI 59105
Last reviewed 3 June 2026

Sources

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