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Disodium 4-hydroxy-3-[(4-sulphonatonaphthyl)azo]naphthalenesulphonate

CAS 3567-69-9
58

Safety score · 0–100

Moderate

Derived from EU CosIng regulatory status, PubChem hazard data and published research. How we score.

About

An acid-based azo dye (CI 17200) used for cosmetic coloring in products like hair dyes and color cosmetics. Azo dye classification requires consideration of potential amine release under reduction.

This disodium sulfonate azo dye is used for coloring in cosmetic formulations. Like other azo colorants, it carries theoretical concern for reductive cleavage of the azo bond, potentially releasing aromatic amines. However, modern azo pigments used in cosmetics are extensively tested and many are approved under EU CosIng without specific restrictions beyond general cosmetic safety provisions. The absence of GHS hazard statements in the provided data suggests a relatively favorable safety profile for this particular dye at current usage levels.

Skin benefits

  • Provides blue/violet coloration in cosmetic products
  • Used in hair dye and color cosmetic formulations
  • Water-soluble dye with good stability

Known concerns

  • Azo dye theoretical concern for amine release under还原 conditions
  • Potential skin sensitization in some individuals
  • Environmental concern for aquatic toxicity typical of dyes
  • Ensure compliance with EU approved colorant lists

References

EU

EU CosIng database

European Commission cosmetic ingredient registry — regulatory status, restrictions, authorised functions.

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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.