Skip to content

Colorant

CI 50420

CAS 8005-03-6 Updated
30

Safety score · 0–100

Caution

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

About

A deep-black aniline-derived azine dye (Nigrosine). Banned in EU hair dyes due to safety concerns about aromatic-amine impurities and sensitization. Avoid in skin or hair-contact cosmetics.

Function

COLORANT

Skin benefits

  • Intense black pigmentation
  • Industrial colorant performance

Known concerns

  • Banned in EU hair dye products
  • Sensitization risk from azine class
  • Possible carcinogenic aromatic-amine residues

References

EU

EU CosIng database

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

Related colorants

30
2,3-Dihydro-1H-indole-5,6-diol and its hydrobromide salt (see note 17).
Colorant
 30
2,3-Naphthalenediol, when used as a substance in hair dye products
Colorant
 30
2-HEXYLOXYCARBONYL-P-PHENYLENEDIAMINE HCL
Colorant
 30
4-NITROGUAIACOL
Colorant
 30
ACID GREEN 1
Colorant
 30
ACID ORANGE 6
Colorant
 30
ACID RED 92
Colorant
 30
ACID VIOLET 9
Colorant

Check your shelf

Find CI 50420 in your products.

Scan any cosmetic product with LuxSense to see if it contains CI 50420 and get a full ingredient breakdown with safety scores.

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.