Database/Hair Dyeing/HC Yellow No. 9
100% petroleum · ISO 16128

Is HC Yellow No. 9 natural?

No. Synthetic nitrophenylenediamine hair dye built from petrochemical benzene and nitric acid derivatives.

INCI nameHC Yellow No. 9
CAS86419-69-4
FormulaC9H14ClN3O3 · 247.68 Da
FunctionHair Dyeing
FeedstockManufactured by nitrating and aminating petrochemical methoxyaniline, then…

How we scored it

Nitrophenyl-ethylenediamine HCl salt built from petrochemical nitroaniline chemistry; no natural fragment. 0/247.68=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 nitrating and aminating petrochemical methoxyaniline, then forming the hydrochloride salt. No natural route exists commercially.

In plain English

A synthetic dye used in semi-permanent hair colorants. It is made from petrochemical nitrophenylenediamine derivatives, with no natural origin.

CosIng definition: HC Yellow No. 9 is the hair color that conforms to the formula:

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Structure

2D structure of HC Yellow No. 9

N'-(5-methoxy-2-nitrophenyl)ethane-1,2-diamine;hydrochloride

PubChem CID 21909544 ↗

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. 9. PubChem CID 21909544. National Center for Biotechnology Information. pubchem.ncbi.nlm.nih.gov ↗
  3. 3HC YELLOW NO. 9. CosIng — European Commission cosmetic ingredient database. ec.europa.eu/cosing ↗
  4. 4HC YELLOW NO. 9. 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.%209