Database/Colorant/CI 42510
Mostly petroleum · ISO 16128

Is CI 42510 natural?

Mostly not. This triphenylmethane dye cation is made from petrochemical aromatic amines; only the chloride counter-ion is treated as mineral/natural.

INCI nameCI 42510
CAS632-99-5
FormulaC20H20ClN3 · 337.8 Da
FunctionColorant
FeedstockManufactured by condensing petrochemical aniline-type aromatic amines to…

How we scored it

MW 337.8; only Cl (35.45 Da, mineral counter-ion) is natural, the triphenylmethane cation is synthetic. 35.45/337.8=0.105->0.10.
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 condensing petrochemical aniline-type aromatic amines to form the triarylmethane chromophore, isolated as its hydrochloride salt. No natural production route exists commercially.

In plain English

A synthetic triphenylmethane dye used to colour cosmetics. It is manufactured from petrochemical aromatic amines and isolated as its hydrochloride salt.

CosIng definition: CI 42510 is classed chemically as a triphenylmethane colour. It conforms to the formula:

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Structure

2D structure of CI 42510

4-[(4-aminophenyl)-(4-imino-3-methylcyclohexa-2,5-dien-1-ylidene)methyl]aniline;hydrochloride

PubChem CID 12447 ↗

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 42510. PubChem CID 12447. National Center for Biotechnology Information. pubchem.ncbi.nlm.nih.gov ↗
  3. 3CI 42510. CosIng — European Commission cosmetic ingredient database. ec.europa.eu/cosing ↗
  4. 4CI 42510. CosIng u2014 European Commission database for information on cosmetic substances and ingredients. https://ec.europa.eu/growth/tools-databases/cosing/search?search=CI%2042510