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Calcium 3-hydroxy-4-[(1-sulphonato-2-naphthyl)azo]-2-naphthoate

CAS 6417-83-0
50

Safety score · 0–100

Moderate

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

About

A calcium-chelate azo naphthoate dye with no classified hazards, but the metal-complex nature and azo bond require attention to heavy-metal and amine-release regulations.

This calcium-chelated azo dye (CAS 6417-83-0) is a metal-complex colourant combining calcium with a naphthoate azo structure. Calcium salts generally present lower toxicity than other heavy metals in cosmetics. No hazard statements are classified for this compound. However, the European Commission's Scientific Committee on Consumer Safety (SCCS) notes that metal-complex dyes may release bound metal ions under certain conditions, and the azo bond requires monitoring consistent with broader azo-dye regulatory frameworks.

Known concerns

  • Metal-complex dye — potential metal ion release under extreme conditions
  • Azo bond — low-level amine-release monitoring required

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.