Database/Hair Dyeing/1,7-Naphthalenediol
100% petroleum · ISO 16128

Is 1,7-Naphthalenediol natural?

No. Made from naphthalene, a petrochemical (coal-tar/petroleum) aromatic hydrocarbon; no natural-origin fragment exists.

INCI name1,7-Naphthalenediol
CAS575-38-2
FormulaC10H8O2 · 160.17 Da
FunctionHair Dyeing
FeedstockSynthesised from naphthalene, an aromatic hydrocarbon isolated from…

How we scored it

Entire molecule is a naphthalene ring diol; naphthalene is a petroleum/coal-tar aromatic feedstock. 0/160 natural mass = 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

Synthesised from naphthalene, an aromatic hydrocarbon isolated from petroleum or coal tar, then hydroxylated to give the diol used as a hair-dye intermediate. There is no commercial natural-origin route.

In plain English

A lab-made ingredient used in permanent hair colour. It's built from a petroleum-derived aromatic compound. There's no natural version of this ingredient.

Natural alternatives with the same function

Beta Vulgaris Root Powder 100% natural origin

A powder made by drying and grinding sugar beet root. Used as a natural colorant for hair dye…

 Bismuth Citrate 100% natural origin

A salt formed from bismuth metal and citric acid, a natural fermentation-derived fruit acid, used to buffer, chelate…

 Dihydroxyacetone 100% natural origin

The active self-tanning ingredient that reacts with skin's surface proteins to produce a temporary bronze colour; made by…

 Epicatechin 100% natural origin

An antioxidant compound naturally found in tea and cocoa, used in skin, hair and oral care. It's extracted…

 Lawsonia Inermis Extract 100% natural origin

A plant extract from the henna shrub, used to condition hair and skin and add a reddish tint.…

 Pyrogallol 100% natural origin

A hair-dye ingredient traditionally made by heating gallic acid, itself extracted from plant tannins in gallnuts, until it…

Structure

2D structure of 1,7-Naphthalenediol

naphthalene-1,7-diol

PubChem CID 68462 ↗

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. 21,7-Naphthalenediol. PubChem CID 68462. National Center for Biotechnology Information. pubchem.ncbi.nlm.nih.gov ↗
  3. 31,7-NAPHTHALENEDIOL. CosIng — European Commission cosmetic ingredient database. ec.europa.eu/cosing ↗
  4. 41,7-NAPHTHALENEDIOL. CosIng u2014 European Commission database for information on cosmetic substances and ingredients. https://ec.europa.eu/growth/tools-databases/cosing/search?search=1%2C7-NAPHTHALENEDIOL