Database/Hair Dyeing/Basic Blue 47
100% petroleum · ISO 16128

Is Basic Blue 47 natural?

No. Fully synthetic anthraquinone dye built from petrochemical anthracene and aniline derivatives; no natural-origin fragments present.

INCI nameBasic Blue 47
CAS67905-56-0
FormulaC23H21N3O2 · 371.4 Da
FunctionHair Dyeing
FeedstockManufactured by condensation of a synthetic aminoanthraquinone with…

How we scored it

Anthraquinone dye, free base: entire molecule is synthetic aromatic (anthraquinone core + dimethylaminomethylaniline substituent), no natural fragments → 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

Manufactured by condensation of a synthetic aminoanthraquinone with a dimethylaminomethyl-aniline derivative, both from petrochemical aromatic feedstocks. No natural route exists.

In plain English

A fully synthetic anthraquinone dye used to colour hair blue, built entirely from petrochemical aromatic building blocks.

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Structure

2D structure of Basic Blue 47

1-amino-4-[4-[(dimethylamino)methyl]anilino]anthracene-9,10-dione

PubChem CID 82972 ↗

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. 2Basic Blue 47. PubChem CID 82972. National Center for Biotechnology Information. pubchem.ncbi.nlm.nih.gov ↗
  3. 3BASIC BLUE 47. CosIng — European Commission cosmetic ingredient database. ec.europa.eu/cosing ↗
  4. 4BASIC BLUE 47. CosIng u2014 European Commission database for information on cosmetic substances and ingredients. https://ec.europa.eu/growth/tools-databases/cosing/search?search=BASIC%20BLUE%2047