Database/Hair Dyeing/HC Yellow No. 8
100% petroleum · ISO 16128

Is HC Yellow No. 8 natural?

No. Synthetic quinone-imine dye derived from petrochemical chlorophenol and acetanilide chemistry.

INCI nameHC Yellow No. 8
CAS66612-11-1
FormulaC15H13ClN2O4 · 320.73 Da
FunctionHair Dyeing
FeedstockManufactured by oxidative coupling of petrochemical chlorophenol and…

How we scored it

Quinone-imine acetamide dye built from petrochemical chlorophenol and aniline chemistry; no natural fragment. 0/320.73=0.00.
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 oxidative coupling of petrochemical chlorophenol and methoxyacetanilide derivatives. No natural route exists commercially.

In plain English

A synthetic dye used in hair coloring formulations. It is derived entirely from petrochemical aromatic compounds, with no natural origin.

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Structure

2D structure of HC Yellow No. 8

N-[2-[(2-chloro-4-oxocyclohexa-2,5-dien-1-ylidene)amino]-5-hydroxy-4-methoxyphenyl]acetamide

PubChem CID 3017692 ↗

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. 2HC Yellow No. 8. PubChem CID 3017692. National Center for Biotechnology Information. pubchem.ncbi.nlm.nih.gov ↗
  3. 3HC YELLOW NO. 8. CosIng — European Commission cosmetic ingredient database. ec.europa.eu/cosing ↗
  4. 4HC YELLOW NO. 8. CosIng u2014 European Commission database for information on cosmetic substances and ingredients. https://ec.europa.eu/growth/tools-databases/cosing/search?search=HC%20YELLOW%20NO.%208