Database/Hair Dyeing/HC Orange No. 1
100% petroleum · ISO 16128

Is HC Orange No. 1 natural?

No. Synthetic nitroaniline-phenol hair dye built entirely from petrochemical aromatic intermediates.

INCI nameHC Orange No. 1
CAS54381-08-7
FormulaC12H10N2O3 · 230.22 Da
FunctionHair Dyeing
FeedstockManufactured from petrochemical aniline and phenol derivatives via…

How we scored it

Nitroaniline-phenol dye; aromatic core from petrochemical benzene/aniline. No natural fragment.
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 from petrochemical aniline and phenol derivatives via nitration and coupling reactions. No natural-origin route exists.

In plain English

A synthetic dye made from petroleum-derived chemicals, used to add orange color in semi-permanent hair dyes.

CosIng definition: HC Orange No. 1 is the hair color that conforms to the formula:

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Structure

2D structure of HC Orange No. 1

4-(2-nitroanilino)phenol

PubChem CID 3846708 ↗

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 Orange No. 1. PubChem CID 3846708. National Center for Biotechnology Information. pubchem.ncbi.nlm.nih.gov ↗
  3. 3HC ORANGE NO. 1. CosIng — European Commission cosmetic ingredient database. ec.europa.eu/cosing ↗
  4. 4HC ORANGE NO. 1. CosIng u2014 European Commission database for information on cosmetic substances and ingredients. https://ec.europa.eu/growth/tools-databases/cosing/search?search=HC%20ORANGE%20NO.%201