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Is 3,3'-(Sulfonylbis(2-nitro-4,1-phenylene)imino)bis(6-(phenylamino))benzenesulfonic acid vegan?

3,3'-(Sulfonylbis(2-nitro-4,1-phenylene)imino)bis(6-(phenylamino))benzenesulfonic acid

Vegan

A synthetic sulfonated benzenesulfonic acid compound used as a substance restricted in hair dye products.

INCI name 3,3'-(Sulfonylbis(2-nitro-4,1-phenylene)imino)bis(6-(phenylamino))benzenesulfonic acid
CAS number 6373-79-1
EC number 228-922-0
CosIng ID 31103
Last reviewed 9 July 2026

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