Database/Colorant/CI 14815
Mostly petroleum · ISO 16128

Is CI 14815 natural?

Mostly not. Aromatic azo backbone from petrochemical xylenol and naphthol intermediates; sulfonate/sodium groups counted mineral per this site's convention.

INCI nameCI 14815
CAS3257-28-1
FormulaC18H14N2Na2O7S2 · 480.4 Da
FunctionColorant
FeedstockSynthesised by diazotising a dimethylaniline-sulfonic acid and coupling…

How we scored it

MW 480.4: 2xSO3Na=206.12 natural (mineral); remaining dimethylphenyl-diazo-naphthol backbone 274.28 petrochemical -> 206.12/480.4=0.43.
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 by diazotising a dimethylaniline-sulfonic acid and coupling to a naphtholsulfonic acid, both petrochemical aromatics bearing mineral sulfonate groups. No natural production route.

In plain English

A synthetic azo colorant built from petrochemical aromatic chemicals bearing sulfonate salt groups. Used to add colour to cosmetic formulations; not naturally occurring.

CosIng definition: CI 14815 is classed chemically as a monoazo colour. It conforms to the formula:

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Structure

2D structure of CI 14815

disodium;6-[(2,4-dimethyl-6-sulfonatophenyl)diazenyl]-5-hydroxynaphthalene-1-sulfonate

PubChem CID 76745 ↗

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 14815. PubChem CID 76745. National Center for Biotechnology Information. pubchem.ncbi.nlm.nih.gov ↗
  3. 3CI 14815. CosIng — European Commission cosmetic ingredient database. ec.europa.eu/cosing ↗
  4. 4CI 14815. CosIng u2014 European Commission database for information on cosmetic substances and ingredients. https://ec.europa.eu/growth/tools-databases/cosing/search?search=CI%2014815