Is 2,2'-[(3,3'-Dichloro[1,1'-biphenyl]-4,4'-diyl)bis(azo)]bis[N-(4-chloro-2,5-dimethoxyphenyl)-3-oxobutyramide] vegan?

Pigment Yellow 83 is also known as 2,2'-[(3,3'-Dichloro[1,1'-biphenyl]-4,4'-diyl)bis(azo)]bis[N-(4-chloro-2,5-dimethoxyphenyl)-3-oxobutyramide].

CI 21108 is a synthetic disazo colourant, chemically a bis-azo compound derived from dichlorobiphenyl diazonium coupled with chloro-dimethoxyphenyl acetoacetamide derivatives, used as a colour additive.

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