Skip to content

Colorant

3,4-DIAMINOBENZOIC ACID

CAS 619-05-6
32

Safety score · 0–100

Caution

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

An aromatic diamine (CAS 619-05-6) used exclusively as a hair-dye precursor in oxidative colour systems. Heavily restricted in the EU; a known sensitiser requiring activation with hydrogen peroxide.

Function

HAIR DYEING

Skin benefits

  • Permits hair colour development as a coupler

Known concerns

  • Documented contact sensitiser
  • Aromatic-diamine class concerns
  • EU Annex III oxidative hair-dye-only use

References

EU

EU CosIng database

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

Related colorants

32
2-Amino-6-chloro-4-nitrophenol
Colorant
 32
4-CHLORORESORCINOL
Colorant
 32
ACID ORANGE 7
Colorant
 32
CI 47000
Colorant
 32
PIGMENT RED 83
Colorant
 32
PIGMENT RED 88
Colorant
 32
TRIMETHYL TRIFLUOROMETHYLINDOLINO PIPERIDINYLSPIRONAPHTHOOXAZINE
Colorant
 30
2,3-Dihydro-1H-indole-5,6-diol and its hydrobromide salt (see note 17).
Colorant

Same plant / compound family

30
3,4-Diaminobenzoic acid, when used as a substance in hair dye products
Hair Dye

Check your shelf

Find 3,4-DIAMINOBENZOIC ACID in your products.

Scan any cosmetic product with LuxSense to see if it contains 3,4-DIAMINOBENZOIC ACID 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, so always read the physical product label and consult a healthcare professional for personal concerns.