Banned aromatic amine
4-Aminoazobenzene
Safety score · 0–100
Avoid
Derived from EU CosIng regulatory status, PubChem hazard data and published research. How we score.
An aromatic amine dye intermediate that is a confirmed carcinogen and potent skin sensitiser in dermatology. It is banned in EU cosmetics and harmonised as a CMR Category 1B substance under CLP rules.
Skin benefits
- Historically used as an intermediate in azo dye synthesis
- Provides yellow coloration in non-cosmetic industrial uses
Known concerns
- Classified as a Category 1B carcinogen under EU CLP
- Banned in EU cosmetics under Annex II
- Strong skin sensitiser linked to severe contact dermatitis
- Mutagenic in standard bacterial and mammalian assays
References
EU CosIng database
European Commission cosmetic ingredient registry: regulatory status, restrictions, authorised functions.
Related banned aromatic amines
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This profile is for educational purposes and does not constitute medical advice. Regulatory status and scientific understanding evolve, so always read the physical product label and consult a healthcare professional for personal concerns.