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SOLVENT YELLOW 18

CAS 6407-78-9
55

Safety score · 0–100

Moderate

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

About

SOLVENT YELLOW 18 is a cosmetic ingredient used in product formulation. Exercise caution due to limited available safety data.

Solvent Yellow 18 (CAS 6407-78-9) is a quinophthalone-type dye providing yellow to orange coloration. It is not specifically listed in EU Cosmetics Regulation 1223/2009 Annex II restriction list, suggesting it may be used under general colorant regulations. However, quinophthalone dyes have undergone EU safety evaluation. The dye is typically used in hair dye and decorative cosmetic applications. General requirements for cosmetic colorants in the EU include purity standards and specific concentration limits. Contact sensitization has been reported with some quinophthalone dyes, warranting caution in leave-on products. Requires individual EU colorant approval for cosmetic use.

Known concerns

  • Contact sensitization reported for some quinophthalone dyes
  • May require specific EU colorant approval
  • Potential impurity concerns from synthesis

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.