Database/Colorant/CI 17200
100% petroleum · ISO 16128

Is CI 17200 natural?

No. Azo dyes are built entirely from petrochemical aromatic amines and sulfonated naphthol couplers via diazotisation.

INCI nameCI 17200
CAS3567-66-6
FormulaC16H11N3Na2O7S2 · 467.4 Da
FunctionColorant · Hair Dyeing
FeedstockManufactured by diazotising a petrochemical aromatic amine and…

How we scored it

Monoazo dye synthesised from petrochemical diazotised aromatic amine + naphthol/sulfonic-acid coupler; no natural feedstock exists → 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 diazotising a petrochemical aromatic amine and coupling it to a sulfonated naphthol. No natural route exists.

In plain English

A synthetic red azo dye used in hair dyes and coloured cosmetics; made entirely from petrochemical aromatic chemicals.

CosIng definition: CI 17200 is classed chemically as a monoazo colour. It conforms to the formula:

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Structure

2D structure of CI 17200

disodium;5-amino-4-hydroxy-3-phenyldiazenylnaphthalene-2,7-disulfonate

PubChem CID 19116 ↗

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 17200. PubChem CID 19116. National Center for Biotechnology Information. pubchem.ncbi.nlm.nih.gov ↗
  3. 3CI 17200. CosIng — European Commission cosmetic ingredient database. ec.europa.eu/cosing ↗
  4. 4CI 17200. CosIng u2014 European Commission database for information on cosmetic substances and ingredients. https://ec.europa.eu/growth/tools-databases/cosing/search?search=CI%2017200