Database/Hair Dyeing/4-Amino-2-Hydroxytoluene
100% petroleum · ISO 16128

Is 4-Amino-2-Hydroxytoluene natural?

No. Manufactured from petrochemical toluene-derived cresol and nitration/amination chemistry; no natural feedstock is used.

INCI name4-Amino-2-Hydroxytoluene
CAS2835-95-2
FormulaC7H9NO · 123.15 Da
FunctionHair Dyeing
FeedstockProduced by nitration and reduction of a petrochemical…

How we scored it

Synthetic aminocresol hair-dye precursor derived from toluene/phenol chemistry; no natural fragment. 0/123 = 0.0.
What counts. ISO 16128-2 scores the atoms that remain in the final ingredient. Reagents, solvents, catalysts and protecting groups used during manufacture leave no mass behind and are not counted.

Where it comes from

Produced by nitration and reduction of a petrochemical cresol (methylphenol) intermediate. No natural-origin production route exists for this hair-dye precursor.

In plain English

A small-molecule precursor used to develop colour in permanent hair dyes. It is manufactured synthetically from petroleum-derived aromatic chemicals.

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A hair-dye ingredient traditionally made by heating gallic acid, itself extracted from plant tannins in gallnuts, until it…

Structure

2D structure of 4-Amino-2-Hydroxytoluene

5-amino-2-methylphenol

PubChem CID 17818 ↗

References

  1. 1ISO 16128-1:2016 and ISO 16128-2:2017 — Guidelines on technical definitions and criteria for natural and organic cosmetic ingredients and products. ISO, Geneva.
  2. 24-Amino-2-Hydroxytoluene. PubChem CID 17818. National Center for Biotechnology Information. pubchem.ncbi.nlm.nih.gov ↗
  3. 34-AMINO-2-HYDROXYTOLUENE. CosIng — European Commission cosmetic ingredient database. ec.europa.eu/cosing ↗
  4. 44-AMINO-2-HYDROXYTOLUENE. CosIng u2014 European Commission database for information on cosmetic substances and ingredients. https://ec.europa.eu/growth/tools-databases/cosing/search?search=4-AMINO-2-HYDROXYTOLUENE