Database/Hair Dyeing/2-Chloro-p-Phenylenediamine
100% petroleum · ISO 16128

Is 2-Chloro-p-Phenylenediamine natural?

No. Synthesised from petrochemical benzene/aniline feedstocks via chlorination and amination; no natural-origin fragment exists.

INCI name2-Chloro-p-Phenylenediamine
CAS615-66-7
FormulaC6H7ClN2 · 142.58 Da
FunctionHair Dyeing
FeedstockManufactured synthetically from petrochemical benzene via nitration, chlorination…

How we scored it

Whole molecule C6H7ClN2 (142.58 Da), chlorinated phenylenediamine; wholly petrochemical, 0/142.58 natural mass.
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 synthetically from petrochemical benzene via nitration, chlorination and reduction steps to install the diamine groups. No natural or biosynthetic route is used commercially.

In plain English

A man-made dye ingredient used in permanent hair colour to help develop colour shades. It is built entirely from petroleum-derived benzene chemicals in a factory.

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Structure

2D structure of 2-Chloro-p-Phenylenediamine

2-chlorobenzene-1,4-diamine

PubChem CID 11998 ↗

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. 22-Chloro-p-Phenylenediamine. PubChem CID 11998. National Center for Biotechnology Information. pubchem.ncbi.nlm.nih.gov ↗
  3. 32-CHLORO-P-PHENYLENEDIAMINE. CosIng — European Commission cosmetic ingredient database. ec.europa.eu/cosing ↗
  4. 42-CHLORO-P-PHENYLENEDIAMINE. CosIng u2014 European Commission database for information on cosmetic substances and ingredients. https://ec.europa.eu/growth/tools-databases/cosing/search?search=2-CHLORO-P-PHENYLENEDIAMINE