Database/Colorant/CI 42170
Mostly petroleum · ISO 16128

Is CI 42170 natural?

Mostly not. The triphenylmethane dye core and its chlorophenyl/ethylamino substituents are synthetic/petrochemical; sodium, chloride, and sulfonate groups are mineral-origin.

INCI nameCI 42170
CAS5863-51-4
FormulaC39H38ClN2NaO6S2 · 753.3 Da
FunctionColorant
FeedstockMade by synthetic organic chemistry from petrochemical aromatic…

How we scored it

C39H38ClN2NaO6S2: Na 23.0 + Cl 35.4 + 2xSO3 160.1 = 218.6 Da mineral; remaining chlorophenyl-triphenylmethane-disulfonate core 534.7 Da petrochemical; 218.6/753.3 = 0.29
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

Made by synthetic organic chemistry from petrochemical aromatic amines and isolated as a mixed sodium/chloride salt.

In plain English

A synthetic triphenylmethane dye made from petrochemical aromatic building blocks. Used to add colour to cosmetic products.

CosIng definition: CI 42170 is classed chemically as a triphenylmethane colour. It conforms to the formula:

Natural alternatives with the same function

Structure

2D structure of CI 42170

sodium 3-[[4-[(E)-(2-chlorophenyl)-[4-[ethyl-[(3-sulfonatophenyl)methyl]azaniumylidene]-2-methylcyclohexa-2,5-dien-1-ylidene]methyl]-N-ethyl-3-methylanilino]methyl]benzenesulfonate

PubChem CID 6453667 ↗

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 42170. PubChem CID 6453667. National Center for Biotechnology Information. pubchem.ncbi.nlm.nih.gov ↗
  3. 3CI 42170. CosIng — European Commission cosmetic ingredient database. ec.europa.eu/cosing ↗
  4. 4CI 42170. CosIng u2014 European Commission database for information on cosmetic substances and ingredients. https://ec.europa.eu/growth/tools-databases/cosing/search?search=CI%2042170