Database/Hair Dyeing/HC Red No. 11
100% petroleum · ISO 16128

Is HC Red No. 11 natural?

No. Nitro-chloroaniline dye carrying two dihydroxypropylamino side chains, assembled entirely from petrochemical aniline via synthetic nitration, chlorination and alkylation.

INCI nameHC Red No. 11
CAS95576-92-4
FormulaC12H18ClN3O6 · 335.74 Da
FunctionHair Dyeing
FeedstockHC Red No. 11 is synthesised from petrochemical…

How we scored it

C12H18ClN3O6 chloro-nitroaniline-bis(dihydroxypropylamino) dye; aryl chlorine covalently installed during synthesis. Entire molecule petrochemical. 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 Red No. 11 is synthesised from petrochemical aniline through nitration, chlorination and reaction with a glycidol-type reagent to install the dihydroxypropyl side chains. No natural route exists.

In plain English

A synthetic red dye used for direct hair coloring. It's manufactured from petroleum-derived aniline through a multi-step chemical synthesis; none of its structure comes from natural sources.

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Structure

2D structure of HC Red No. 11

3-[2-chloro-4-(2,3-dihydroxypropylamino)-5-nitroanilino]propane-1,2-diol

PubChem CID 22320962 ↗

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 Red No. 11. PubChem CID 22320962. National Center for Biotechnology Information. pubchem.ncbi.nlm.nih.gov ↗
  3. 3HC RED NO. 11. CosIng — European Commission cosmetic ingredient database. ec.europa.eu/cosing ↗
  4. 4HC RED NO. 11. CosIng u2014 European Commission database for information on cosmetic substances and ingredients. https://ec.europa.eu/growth/tools-databases/cosing/search?search=HC%20RED%20NO.%2011