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Colorant

PIGMENT RED 4

CAS 2814-77-9
18

Safety score · 0–100

Avoid

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

A monoazo red pigment (CI 12085) banned under EU Annex II for hair dye products and restricted in mixtures because it can release a suspected carcinogen (4-chloro-2-nitroaniline). Strong avoidance signal.

Function

HAIR DYEING

Skin benefits

  • Bright red monoazo pigment with historic use in coatings and inks
  • Limited residual use under heavy restrictions

Known concerns

  • EU Annex II — banned in hair dye products and restricted at ≥0.1% in mixtures
  • Cleaves to 4-chloro-2-nitroaniline, a Category 2 suspected carcinogen
  • Aerosol propellant use banned

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, so always read the physical product label and consult a healthcare professional for personal concerns.