Database/Colorant/CI 14720
Mostly petroleum · ISO 16128

Is CI 14720 natural?

Mostly not. Aromatic backbone from petrochemical naphthalene/aniline coupling is synthetic; the two sulfonate groups count as mineral-derived by this site's convention.

INCI nameCI 14720
CAS3567-69-9
FormulaC20H12N2Na2O7S2 · 502.4 Da
FunctionColorant
FeedstockA synthetic disodium naphthalene-azo-naphthol sulfonate dye made from…

How we scored it

MW 502.4: 2xSO3Na (mineral sulfonate) = 2x103.06=206.12 natural; remaining naphthalene-diazo-naphthol backbone 296.28 petrochemical -> 206.12/502.4=0.41.
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 synthetic disodium naphthalene-azo-naphthol sulfonate dye made from petrochemical naphthalenesulfonic acid intermediates and diazotised aromatic amines. The sulfonate/sodium portions are mineral in origin; the aromatic dye skeleton is not.

In plain English

A synthetic red azo dye (colorant) used in cosmetics, built by joining two naphthalene-based petrochemical fragments. Part of its weight comes from mineral sulfonate/sodium groups, but the coloured backbone is entirely man-made.

CosIng definition: CI 14720 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 14720

disodium;4-hydroxy-3-[(4-sulfonatonaphthalen-1-yl)diazenyl]naphthalene-1-sulfonate

PubChem CID 19118 ↗

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 14720. PubChem CID 19118. National Center for Biotechnology Information. pubchem.ncbi.nlm.nih.gov ↗
  3. 3CI 14720. CosIng — European Commission cosmetic ingredient database. ec.europa.eu/cosing ↗
  4. 4CI 14720. CosIng u2014 European Commission database for information on cosmetic substances and ingredients. https://ec.europa.eu/growth/tools-databases/cosing/search?search=CI%2014720