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Colorant

CI 42051

CAS 3536-49-0
55

Safety score · 0–100

Moderate

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

A blue triphenylmethane dye (Patent Blue V) used to color cosmetics. EU allows it but not in eye area. Mild sensitization risk; otherwise low-concern at trace use.

Function

COLORANT

Skin benefits

  • Bright blue colorant for cosmetics
  • Authorized for non-eye area use in EU

Known concerns

  • Triphenylmethane dye class with sensitization potential
  • Not authorized for eye-area products in EU
  • Some structural analogues flagged for genotoxicity
  • Potential skin sensitizer

References

EU

EU CosIng database

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

PC

PubChem

U.S. NIH compound data, GHS hazard codes and toxicity literature.

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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.