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Is 4-Nitro-o-Phenylenediamine HCl vegan?

4-Nitro-o-Phenylenediamine HCl

Vegan

4-Nitro-o-Phenylenediamine HCl is the hydrochloride salt of a synthetic nitro-aromatic diamine used as a direct dye in hair colouring products.

Also known as 4-nitrobenzene-1,2-diamine dihydrochloride, 4-nitrobenzene-1,2-diamine dihydrochloride (CI 76020)
INCI name 4-Nitro-o-Phenylenediamine HCl
CAS number 911-65-9
EC number 228-293-2
CI number CI 76020
CosIng ID 31533
Last reviewed 9 July 2026

Sources

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