Other
Ethanol, 2,2′-[[4-[(4-aminophenyl) azo]phenyl]imino]bis-
Safety score · 0–100
Caution
Derived from EU CosIng regulatory status, PubChem hazard data and published research. How we score.
About
A nitroaminoazo dye restricted to a maximum concentration of 0.3% in cosmetic formulations, primarily used in hair dye applications.
This compound is a 4-(4-aminophenylazo) substituted ethanolamine derivative classified as a nitroaminoazo hair dye. EU cosmetics regulation (EC 1223/2009) Annex III entry limits its concentration to 0.3% when used in oxidative hair dye mixtures, specifically in a 1:1 ratio with lignosulfate. These restrictions reflect the sensitizing and potential carcinogenic concerns associated with certain azo dye structures.
Known concerns
- EU Annex III restricted to 0.3% in hair dye mixtures
- Potential azo dye sensitizer
- Potential genotoxicity concern with certain azo compounds
References
EU CosIng database
European Commission cosmetic ingredient registry — regulatory status, restrictions, authorised functions.
Related others
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This profile is for educational purposes and does not constitute medical advice. Regulatory status and scientific understanding evolve — always read the physical product label and consult a healthcare professional for personal concerns.