N-2-Naphthylaniline
Other
Caution
CAS Number: 135-88-6
About N-2-Naphthylaniline
N-2-Naphthylaniline is a cosmetic ingredient used in product formulations. Its specific function may vary between products. Exercise caution due to limited available safety data.
Detailed Analysis
N-2-Naphthylaniline (also called N-phenyl-2-naphthylamine) is a secondary aromatic amine that has raised toxicological concern due to its potential to form N-nitroso compounds, some of which are known carcinogens. It carries no formal EU Annex restriction but its secondary amine structure makes it a nitrosation risk when co-formulated with nitrosating agents (e.g., nitrites, certain preservatives). The SCCS has flagged secondary aromatic amines in cosmetic applications as requiring careful safety evaluation.
Known Concerns
- ⚠ Structural alert for in vivo nitrosation — potential carcinogen formation
- ⚠ Secondary aromatic amine with sensitisation potential
- ⚠ Lack of formal SCCS safety assessment for cosmetic use
- ⚠ Environmental persistence concern (not readily biodegradable)
Safety Score
Caution
Based on EU regulatory data, published safety research, and ingredient function analysis.
References
EU CosIng Database
European Commission cosmetic ingredient registry
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