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Colorant

8,18-Dichloro-5,15-diethyl-5,15-dihydrodiindolo[3,2-b:3',2'-m]triphenodioxazine

CAS 6358-30-1
55

Safety score · 0–100

Moderate

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

A triphenodioxazine violet pigment (CI 51319, Pigment Violet 23). Allowed in EU rinse-off cosmetics only, and banned as a hair-dye substance. Inert insoluble pigment overall.

Skin benefits

  • Provides violet colour in rinse-off
  • Stable lightfast pigment
  • Inert insoluble pigment

Known concerns

  • EU rinse-off restriction
  • Banned as hair-dye substance (Annex II/1360)
  • Pigment dust — handle with care

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.