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BASIC VIOLET 4

CAS 2390-59-2
25

Safety score · 0–100

Caution

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

About

A triphenylmethane dye restricted in EU Annex II (entry 1271) from all cosmetic products due to potential carcinogenic effects.

Basic Violet 4 (also known as CI 42535) is a triphenylmethane dye listed in EU Annex II/1270, prohibiting its use in all cosmetic products in the EU. Triphenylmethane dyes of this class have been associated with carcinogenic potential in animal studies and are considered unsafe for cosmetic applications. The ingredient carries a pubchem_safety_score of 40, reflecting significant safety concerns.

Known concerns

  • EU Annex II/1270 — fully banned in cosmetics
  • Triphenylmethane dye with carcinogenic potential
  • Photosensitization risk

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.