Database/Colorant/CI 15580
Mostly petroleum · ISO 16128

Is CI 15580 natural?

Mostly not. Barium salt of a bis-azo naphthol sulfonate dye; aromatic skeleton is petrochemical, barium and sulfonate groups counted mineral.

INCI nameCI 15580
CAS5850-87-3
FormulaC34H26BaN4O8S2 · 820.1 Da
FunctionColorant
FeedstockA barium lake-type azo dye made from petrochemical…

How we scored it

MW 820.1: Ba 137.33 + 2xSO3 160.14 = 297.47 mineral-natural; remaining bis-naphthol-azo-toluenesulfonate backbone 522.63 petrochemical -> 297.47/820.1=0.36.
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

A barium lake-type azo dye made from petrochemical toluenesulfonic acid diazotised and coupled to 2-naphthol, precipitated as the barium salt. No natural production route.

In plain English

A barium-salt azo pigment used to add red colour to cosmetics, built from petrochemical aromatic chemicals. Part of its weight is mineral barium and sulfonate, but the coloured core is synthetic.

CosIng definition: CI 15580 is classed chemically as a monoazo colour. It conforms to the formula:

Natural alternatives with the same function

Aluminum Powder 100% natural origin

Finely powdered aluminum metal used to add shimmer or color to cosmetics. It comes from refining bauxite ore,…

 Aluminum Stearate 100% natural origin

An aluminium salt of stearic acid, a fatty acid from vegetable or animal fat. Used to prevent caking,…

 Anthocyanins 100% natural origin

A natural colorant that gives products red, purple or blue tones. It is recovered from grape skins or…

 Calcium Ferrite 100% natural origin

A mineral pigment made of calcium and iron oxide, used as a colourant in cosmetics. It is produced…

 Calcium Stearate 100% natural origin

The calcium salt of stearic acid, a fatty acid usually from vegetable oils. Used as an anti-caking, thickening…

 Caramel 100% natural origin

A colouring and fragrance ingredient made by heating sugar, sucrose or glucose, until it browns. It comes from…

Structure

2D structure of CI 15580

barium(2+);bis(4-[(2-hydroxynaphthalen-1-yl)diazenyl]-2-methylbenzenesulfonate)

PubChem CID 79946 ↗

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. 2CI 15580. PubChem CID 79946. National Center for Biotechnology Information. pubchem.ncbi.nlm.nih.gov ↗
  3. 3CI 15580. CosIng — European Commission cosmetic ingredient database. ec.europa.eu/cosing ↗
  4. 4CI 15580. CosIng u2014 European Commission database for information on cosmetic substances and ingredients. https://ec.europa.eu/growth/tools-databases/cosing/search?search=CI%2015580