Database/Hair Dyeing/Hydroxyethyl-2-Nitro-p-Toluidine
100% petroleum · ISO 16128

Is Hydroxyethyl-2-Nitro-p-Toluidine natural?

No. Nitro-substituted toluidine hair-dye coupler built from petrochemical toluene/aniline and ethylene oxide; no natural fragment.

INCI nameHydroxyethyl-2-Nitro-p-Toluidine
CAS100418-33-5
FormulaC9H12N2O3 · 196.20 Da
FunctionHair Dyeing
FeedstockManufactured by nitrating p-toluidine (petrochemical toluene derivative), then…

How we scored it

Nitro-toluidine aromatic core and hydroxyethyl (ethylene-oxide) substituent are both petrochemical → 0/196.20 = 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

Manufactured by nitrating p-toluidine (petrochemical toluene derivative), then hydroxyethylating with ethylene oxide. Used solely as a hair-dye coupler; no natural route exists.

In plain English

A synthetic hair-dye intermediate that gives orange and red tones in semi-permanent and permanent hair-colour products.

Natural alternatives with the same function

Beta Vulgaris Root Powder 100% natural origin

A powder made by drying and grinding sugar beet root. Used as a natural colorant for hair dye…

 Bismuth Citrate 100% natural origin

A salt formed from bismuth metal and citric acid, a natural fermentation-derived fruit acid, used to buffer, chelate…

 Dihydroxyacetone 100% natural origin

The active self-tanning ingredient that reacts with skin's surface proteins to produce a temporary bronze colour; made by…

 Epicatechin 100% natural origin

An antioxidant compound naturally found in tea and cocoa, used in skin, hair and oral care. It's extracted…

 Lawsonia Inermis Extract 100% natural origin

A plant extract from the henna shrub, used to condition hair and skin and add a reddish tint.…

 Pyrogallol 100% natural origin

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

Structure

2D structure of Hydroxyethyl-2-Nitro-p-Toluidine

2-(4-methyl-2-nitroanilino)ethanol

PubChem CID 10130360 ↗

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. 2Hydroxyethyl-2-Nitro-p-Toluidine. PubChem CID 10130360. National Center for Biotechnology Information. pubchem.ncbi.nlm.nih.gov ↗
  3. 3HYDROXYETHYL-2-NITRO-P-TOLUIDINE. CosIng — European Commission cosmetic ingredient database. ec.europa.eu/cosing ↗
  4. 4HYDROXYETHYL-2-NITRO-P-TOLUIDINE. CosIng u2014 European Commission database for information on cosmetic substances and ingredients. https://ec.europa.eu/growth/tools-databases/cosing/search?search=HYDROXYETHYL-2-NITRO-P-TOLUIDINE