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DISPERSE BLACK 9

CAS 20721-50-0
42

Safety score · 0–100

Moderate

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

About

Disperse Black 9 is a cosmetic ingredient used in product formulations. Exercise caution due to limited available safety data.

Disperse Black 9 is listed in EU Annex III/263, restricting its use to hair dye applications only. Like many azo dyes, it may undergo metabolic cleavage to release aromatic amines, some of which are carcinogenic. Non-hair-dye cosmetic uses are not permitted under EU Regulation 1223/2009.

Known concerns

  • Potential to release carcinogenic aromatic amines
  • Annex III restricted — hair dye only
  • May cause sensitization in hair dye context

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.