Other
2-[(4-Chloro-2-nitrophenyl)azo]-N-(2-chlorophenyl)-3-oxobutyramide
Safety score · 0–100
Moderate
Derived from EU CosIng regulatory status, PubChem hazard data and published research. How we score.
About
A cosmetic ingredient used in product formulations. Its specific function may vary between products. Exercise caution due to limited available safety data.
This chlorinated azo compound is used as a hair dye intermediate. The CosIng restriction 'Not to be used in products applied on mucous membranes' aligns with EU requirements for certain hair dye intermediates where mucosal exposure could increase systemic absorption risk. Like all oxidative hair dye intermediates, it requires caution during handling and is restricted to professional use in some formulations. The final dyed product must be tested for residual monomer content.
Skin benefits
- Imparts color to hair fibers
Known concerns
- Not permitted on mucous membranes
- Sensitization risk with repeated exposure
- Professional use recommended
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.