Database/Colorant/Acid Blue 62
Mostly petroleum · ISO 16128

Is Acid Blue 62 natural?

Mostly not. Sodium and the sulfonate group are mineral-derived; the aminoanthraquinone dye core is petrochemical.

INCI nameAcid Blue 62
CAS4368-56-3
FormulaC20H19N2NaO5S · 422.4 Da
FunctionColorant · Hair Dyeing
FeedstockSynthesised from petrochemical anthraquinone via amination, cyclohexylamine substitution…

How we scored it

Na(23)+SO3(80)=103 natural (mineral); anthraquinone-cyclohexylamino core petrochemical; 103/422.4=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, cyclohexylamine substitution and sulfonation, then isolated as the sodium salt. No natural route exists.

In plain English

A synthetic blue dye used in hair colouring, built from petrochemical anthraquinone chemistry; only its sodium sulfonate portion is mineral-derived.

CosIng definition: 1-Amino-4-Cyclohexylaminoanthraquinone-2-Sodium Sulfonate; 1-Amino-4-(Cyclohexylamino)-9,10-Dihydro-9,10-Dioxo-2-Anthracenesulfonic Acid, Monosodium Salt

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Structure

2D structure of Acid Blue 62

sodium 1-amino-4-(cyclohexylamino)-9,10-dioxoanthracene-2-sulfonate

PubChem CID 23678881 ↗

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 Blue 62. PubChem CID 23678881. National Center for Biotechnology Information. pubchem.ncbi.nlm.nih.gov ↗
  3. 3ACID BLUE 62. CosIng — European Commission cosmetic ingredient database. ec.europa.eu/cosing ↗
  4. 4ACID BLUE 62. CosIng u2014 European Commission database for information on cosmetic substances and ingredients. https://ec.europa.eu/growth/tools-databases/cosing/search?search=ACID%20BLUE%2062