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Colorant

1H-Indene-1,3(2H)-dione, 2-(2-quinolinyl)-, sulfonated, sodium salts (CI 47005)

CAS 8004-92-0
50

Safety score · 0–100

Moderate

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

A yellow quinoline-based dye (Quinoline Yellow WS, CI 47005) — colors cosmetics and rinse-off products. EU-permitted but with concentration limits and a real history of hypersensitivity reactions in sensitive users.

Skin benefits

  • EU-permitted cosmetic colorant under Annex IV
  • Provides yellow shade in formulations

Known concerns

  • Documented hypersensitivity and contact urticaria reports
  • Banned in some food applications outside the EU
  • Concentration limits and rinse-off restrictions in cosmetics
  • Azo-adjacent chemistry raises caution flags

References

EU

EU CosIng database

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

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Same plant / compound family

45
1H-Indene-1,3(2H)-dione, 2-(2-quinolinyl)-, sulfonated, sodium salts
Colorant

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This profile is for educational purposes and does not constitute medical advice. Regulatory status and scientific understanding evolve, so always read the physical product label and consult a healthcare professional for personal concerns.