Database/Hair Dyeing/Acid Violet 43
Mostly petroleum · ISO 16128

Is Acid Violet 43 natural?

Mostly not. Anthraquinone-amine chromophore is petrochemical; the sulfonate salt group is counted as mineral-origin on an estimated structure.

INCI nameAcid Violet 43
CAS4430-18-6
FunctionHair Dyeing
FeedstockSynthesised from petrochemical anthraquinone via amination and sulfonation.…

How we scored it

Estimated cyclohexylamino-anthraquinone-sulfonic acid, MW~435; SO3Na fragment ~103Da natural (mineral) / ~332Da backbone petrochemical; 103/435=0.24
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 petrochemical anthraquinone via amination and sulfonation. No natural production route for this dye class.

In plain English

A synthetic violet dye used in cosmetics and hair colourants, built from a petroleum-derived anthraquinone core through industrial synthesis.

CosIng definition: Acid Violet 43 is classed chemically as an anthraquinone colour. It conforms to the formula:

Natural alternatives with the same function

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 Epicatechin 100% natural origin

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 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 Acid Violet 43

PubChem CID 23669622 ↗

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. 2Acid Violet 43. PubChem CID 23669622. National Center for Biotechnology Information. pubchem.ncbi.nlm.nih.gov ↗
  3. 3ACID VIOLET 43. CosIng — European Commission cosmetic ingredient database. ec.europa.eu/cosing ↗
  4. 4ACID VIOLET 43. CosIng u2014 European Commission database for information on cosmetic substances and ingredients. https://ec.europa.eu/growth/tools-databases/cosing/search?search=ACID%20VIOLET%2043