Database/Colorant/CI 20170
Mostly petroleum · ISO 16128

Is CI 20170 natural?

Mostly not. Synthetic hydrazone-type azo hair dye from petrochemical dimethylaniline and dioxocyclohexene intermediates; only the single sulfonate/sodium group is mineral.

INCI nameCI 20170
CAS1320-07-6
FormulaC20H17N4NaO5S · 448.4 Da
FunctionColorant · Hair Dyeing
FeedstockA monosulfonated hydrazone azo dye synthesised from petrochemical…

How we scored it

MW 448.4: 1xSO3Na=103.06 mineral-natural; remaining dimethylphenyl-hydrazone-dioxocyclohexene-benzene backbone 345.34 petrochemical -> 103.06/448.4=0.23.
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

A monosulfonated hydrazone azo dye synthesised from petrochemical aromatic amine and dioxocyclohexene intermediates. No natural production route.

In plain English

A synthetic dye used mainly in hair colouring products, built from petrochemical aromatic chemicals with one mineral sulfonate salt group attached. Not naturally derived.

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Structure

2D structure of CI 20170

sodium 4-[(2Z)-2-[(5E)-5-[(2,4-dimethylphenyl)hydrazinylidene]-4,6-dioxocyclohex-2-en-1-ylidene]hydrazinyl]benzenesulfonate

PubChem CID 23675104 ↗

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. 2CI 20170. PubChem CID 23675104. National Center for Biotechnology Information. pubchem.ncbi.nlm.nih.gov ↗
  3. 3CI 20170. CosIng — European Commission cosmetic ingredient database. ec.europa.eu/cosing ↗
  4. 4CI 20170. CosIng u2014 European Commission database for information on cosmetic substances and ingredients. https://ec.europa.eu/growth/tools-databases/cosing/search?search=CI%2020170