4-AMINO-3-NITROPHENOL is graded C (Moderate) by Expert·ING, based on COSING regulatory data. It is restricted under EU COSING — AnnexIII-SAFETY-.
4-AMINO-3-NITROPHENOL
Safety grade: C
This is a synthetic dye compound used to color hair, producing orange to red shades. It works by penetrating the hair shaft and depositing color to achieve lasting results.
It is used in hair dye products to provide vibrant orange and red color tones that bond to the hair for long-lasting color.
Graded using: COSING.
- EU COSING — Restricted
Last verified: May 26, 2026
Safer alternatives to 4-AMINO-3-NITROPHENOL
- BASIC RED 51 — Grade A. Basic dye that directly bonds to hair to create red color tones.
- BASIC RED 76 — Grade A. Basic dye that directly bonds to hair to create red color tones.
- LAWSONIA INERMIS EXTRACT — Grade A. Natural plant extract used in hair dyes to produce warm red-orange tones.
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