3-AMINO-2,4-DICHLOROPHENOL HCL is graded C (Moderate) by Expert·ING, based on COSING regulatory data. It is restricted under EU COSING — AnnexIII-SAFETY-.
3-AMINO-2,4-DICHLOROPHENOL HCL
Safety grade: C
This is a synthetic chemical compound used in permanent and semi-permanent hair coloring products. It works by reacting with other dye components to create color molecules that bond to hair fibers.
It is used in hair dye formulations as a color coupler, helping to develop and fix long-lasting color shades onto the hair strand.
Graded using: COSING.
- EU COSING — Restricted
Last verified: May 26, 2026
Safer alternatives to 3-AMINO-2,4-DICHLOROPHENOL HCL
- 5-AMINO-6-CHLORO-O-CRESOL — Grade A. Amino-substituted chlorophenol intermediate; direct structural and functional analogue for oxidative hair dye coupling.
- 2-METHOXYMETHYL-P-PHENYLENEDIAMINE — Grade A. Phenylenediamine derivative; primary oxidative hair dye intermediate that develops and fixes color through coupling reactions.
- LAWSONIA INERMIS EXTRACT — Grade A. Natural colorant with documented hair dyeing capability; viable plant-based alternative for achieving lasting color.
Other Hair Dyeing ingredients
- RESORCINOL — Grade E**
- THYMOL — Grade A
- M-AMINOPHENOL — Grade C**
- P-AMINOPHENOL — Grade C**
- 2-METHYLRESORCINOL — Grade C
- 4-AMINO-2-HYDROXYTOLUENE — Grade C
- P-PHENYLENEDIAMINE — Grade D**
- 2-METHYL-5-HYDROXYETHYLAMINOPHENOL — Grade C