Database/Hair Dyeing/HC Orange No. 3
100% petroleum · ISO 16128

Is HC Orange No. 3 natural?

No. Nitrophenoxypropanediol dye with a hydroxyethylamino side chain, assembled entirely from petrochemical nitroaromatic feedstock via etherification and amination.

INCI nameHC Orange No. 3
CAS81612-54-6
FormulaC11H16N2O6 · 272.25 Da
FunctionHair Dyeing
FeedstockHC Orange No. 3 is synthesised from petrochemical…

How we scored it

C11H16N2O6 hydroxyethylamino-nitrophenoxy-propanediol dye; entire structure synthesized from petrochemical nitrophenol/aniline intermediates. 0/272.25 = 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

HC Orange No. 3 is synthesised from petrochemical nitrophenol/aniline derivatives through etherification with a propanediol side chain. No natural production route exists.

In plain English

A synthetic orange dye used to color hair directly. It's manufactured from petroleum-derived aromatic chemicals in a multi-step synthesis, with no natural or plant-based input.

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Structure

2D structure of HC Orange No. 3

3-[4-(2-hydroxyethylamino)-3-nitrophenoxy]propane-1,2-diol

PubChem CID 21909542 ↗

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. 3. PubChem CID 21909542. National Center for Biotechnology Information. pubchem.ncbi.nlm.nih.gov ↗
  3. 3HC ORANGE NO. 3. CosIng — European Commission cosmetic ingredient database. ec.europa.eu/cosing ↗
  4. 4HC ORANGE NO. 3. 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.%203