Database/Colorant/CI 15985
100% petroleum · ISO 16128

Is CI 15985 natural?

No. Azo dyes are built entirely from petrochemical aromatic amines and sulfonated naphthol couplers via diazotisation.

INCI nameCI 15985
CAS2783-94-0
FormulaC16H10N2Na2O7S2 · 452.4 Da
FunctionColorant
FeedstockManufactured by diazotising a petrochemical aromatic amine and…

How we scored it

Monoazo dye synthesised from petrochemical diazotised aromatic amine + naphthol/sulfonic-acid coupler; no natural feedstock exists → 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 diazotising a petrochemical aromatic amine and coupling it to a sulfonated naphthol. No natural route exists.

In plain English

A synthetic yellow-orange azo dye used to colour cosmetics; made entirely from petrochemical aromatic chemicals.

CosIng definition: CI 15985 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 15985

disodium;6-hydroxy-5-[(4-sulfonatophenyl)diazenyl]naphthalene-2-sulfonate

PubChem CID 17730 ↗

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 15985. PubChem CID 17730. National Center for Biotechnology Information. pubchem.ncbi.nlm.nih.gov ↗
  3. 3CI 15985. CosIng — European Commission cosmetic ingredient database. ec.europa.eu/cosing ↗
  4. 4CI 15985. CosIng u2014 European Commission database for information on cosmetic substances and ingredients. https://ec.europa.eu/growth/tools-databases/cosing/search?search=CI%2015985