Database/Hair Dyeing/Basic Red 22
Mostly petroleum · ISO 16128

Is Basic Red 22 natural?

Mostly not. Synthetic triazolium azo-dye cation from petrochemical aromatics; only the sulfate fragment of its methylsulfate counter-ion traces to mineral sulfur.

INCI nameBasic Red 22
CAS12221-52-2
FormulaC13H20N6O4S · 356.40 Da
FunctionHair Dyeing
FeedstockThe azo-triazolium dye cation is built from petrochemical…

How we scored it

Cation (245 Da, triazolium-azo-aniline) wholly synthetic=0; methylsulfate anion splits to SO3 mineral(80)+methanol-derived CH3O(31); total 356 Da. 80/356=0.22.
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

The azo-triazolium dye cation is built from petrochemical aniline and hydrazine-type aromatics. The methylsulfate counter-ion comes from methanol reacted with mineral sulfuric acid (dimethyl sulfate route).

In plain English

A synthetic semi-permanent hair-dye salt. Its coloured core is entirely lab-made; only a small sulfate fragment of its counter-ion traces to mineral sulfur.

Natural alternatives with the same function

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Structure

2D structure of Basic Red 22

4-[(2,4-dimethyl-1,2,4-triazol-4-ium-3-yl)diazenyl]-N,N-dimethylaniline;methyl sulfate

PubChem CID 73759884 ↗

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. 2Basic Red 22. PubChem CID 73759884. National Center for Biotechnology Information. pubchem.ncbi.nlm.nih.gov ↗
  3. 3BASIC RED 22. CosIng — European Commission cosmetic ingredient database. ec.europa.eu/cosing ↗
  4. 4BASIC RED 22. CosIng u2014 European Commission database for information on cosmetic substances and ingredients. https://ec.europa.eu/growth/tools-databases/cosing/search?search=BASIC%20RED%2022