Database/Hair Dyeing/Toluene-2,5-Diamine Sulfate
Mostly petroleum · ISO 16128

Is Toluene-2,5-Diamine Sulfate natural?

Mostly not. Toluenediamine is a synthetic petrochemical aromatic amine; the sulfate counter-ion is treated as natural mineral origin.

INCI nameToluene-2,5-Diamine Sulfate
CAS615-50-9
FormulaC7H12N2O4S · 220.25 Da
FunctionHair Dyeing
FeedstockMade by sulfating toluene-2,5-diamine, itself produced from petrochemical…

How we scored it

Toluenediamine free base C7H10N2 (122.2) petrochemical; sulfate portion H2SO4 (98.1) natural mineral acid; 98.1/220.3=0.45.
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

Made by sulfating toluene-2,5-diamine, itself produced from petrochemical toluene via nitration and reduction. The sulfate portion is a natural mineral-acid fragment.

In plain English

A synthetic aromatic amine salt made from petrochemical toluene, used as a primary colour developer in permanent hair dyes.

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Structure

2D structure of Toluene-2,5-Diamine Sulfate

2-methylbenzene-1,4-diamine;sulfuric acid

PubChem CID 22856 ↗

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. 2Toluene-2,5-Diamine Sulfate. PubChem CID 22856. National Center for Biotechnology Information. pubchem.ncbi.nlm.nih.gov ↗
  3. 3TOLUENE-2,5-DIAMINE SULFATE. CosIng — European Commission cosmetic ingredient database. ec.europa.eu/cosing ↗
  4. 4TOLUENE-2,5-DIAMINE SULFATE. CosIng u2014 European Commission database for information on cosmetic substances and ingredients. https://ec.europa.eu/growth/tools-databases/cosing/search?search=TOLUENE-2%2C5-DIAMINE%20SULFATE