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

Is HC Green No. 1 natural?

No. Bis-hydroxyethylamino diiminoquinone dye built from petrochemical aniline and quinone intermediates via synthetic condensation and hydroxyethylation.

INCI nameHC Green No. 1
CAS52136-25-1
FormulaC18H23N3O5 · 361.4 Da
FunctionHair Dyeing
FeedstockHC Green No. 1 is synthesised from petrochemical…

How we scored it

C18H23N3O5 diiminocyclohexadienedione dye with bis(hydroxyethyl)amino groups; entire structure from petrochemical aniline/quinone intermediates. 0/361.4 = 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 Green No. 1 is synthesised from petrochemical para-phenylenediamine-type intermediates condensed with a quinone and hydroxyethylated. No natural production route exists.

In plain English

A synthetic green dye used for direct hair coloring. It's manufactured from petroleum-derived aromatic amine chemicals through several synthesis steps, with no natural or plant source.

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Structure

2D structure of HC Green No. 1

2-[4-[bis(2-hydroxyethyl)amino]anilino]-5-(2-hydroxyethylamino)cyclohexa-2,5-diene-1,4-dione

PubChem CID 104094 ↗

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 Green No. 1. PubChem CID 104094. National Center for Biotechnology Information. pubchem.ncbi.nlm.nih.gov ↗
  3. 3HC GREEN NO. 1. CosIng — European Commission cosmetic ingredient database. ec.europa.eu/cosing ↗
  4. 4HC GREEN 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%20GREEN%20NO.%201