Database/Colorant/CI 75470
100% natural origin · ISO 16128

Is CI 75470 natural?

Yes. An animal-derived colorant, carminic acid, extracted directly from cochineal insects with no synthetic modification.

INCI nameCI 75470
CAS1390-65-4
FormulaC22H20O13 · 492.4 Da
FunctionColorant · Fragrance
FeedstockCI 75470 (carmine) is produced by aqueous extraction…

How we scored it

Carmine is carminic acid extracted from cochineal insects; extraction removes no atoms from the natural pigment molecule → 1.0.
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

CI 75470 (carmine) is produced by aqueous extraction of carminic acid from dried cochineal insects (Dactylopius coccus). No petrochemical synthetic route is used commercially for this natural colorant.

In plain English

CI 75470 (carmine) is a red pigment extracted from cochineal insects. Used to colour cosmetics such as lipsticks and blushes.

CosIng definition: CI 75470 is classed chemically as an anthraquinone derived colour. It conforms to the formula:

Structure

2D structure of CI 75470

3,5,6,8-tetrahydroxy-1-methyl-9,10-dioxo-7-[(2S,3R,4R,5S,6R)-3,4,5-trihydroxy-6-(hydroxymethyl)oxan-2-yl]anthracene-2-carboxylic acid

PubChem CID 10255083 ↗

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 75470. PubChem CID 10255083. National Center for Biotechnology Information. pubchem.ncbi.nlm.nih.gov ↗
  3. 3CI 75470. CosIng — European Commission cosmetic ingredient database. ec.europa.eu/cosing ↗
  4. 4CI 75470. CosIng u2014 European Commission database for information on cosmetic substances and ingredients. https://ec.europa.eu/growth/tools-databases/cosing/search?search=CI%2075470