Database/Chelating/Calcium Disodium EDTA
Mostly petroleum · ISO 16128

Is Calcium Disodium EDTA natural?

Mostly not. The EDTA backbone is petrochemical (ethylenediamine-based); only the calcium and sodium counter-ions are natural mineral mass.

INCI nameCalcium Disodium EDTA
CAS62-33-9
FormulaC10H12CaN2Na2O8 · 374.27 Da
FunctionChelating
FeedstockThe EDTA core is synthesised from petrochemical ethylenediamine…

How we scored it

Ca+Na2 (86.06 Da, mineral, natural) + synthetic EDTA backbone C10H12N2O8 (288.21 Da, petrochemical) → 86.06/374.27 = 0.23.
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

The EDTA core is synthesised from petrochemical ethylenediamine and chloroacetic acid/formaldehyde-cyanide, then combined with calcium and sodium. No natural route exists for the organic backbone.

In plain English

A chelating ingredient that locks up trace metal ions to keep a formula stable and protect its scent and colour. Made from the synthetic molecule EDTA combined with calcium and sodium; the core structure is lab-made.

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Structure

2D structure of Calcium Disodium EDTA

calcium;disodium;2-[2-[bis(carboxylatomethyl)amino]ethyl-(carboxylatomethyl)amino]acetate

PubChem CID 6093170 ↗

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. 2Calcium Disodium EDTA. PubChem CID 6093170. National Center for Biotechnology Information. pubchem.ncbi.nlm.nih.gov ↗
  3. 3CALCIUM DISODIUM EDTA. CosIng — European Commission cosmetic ingredient database. ec.europa.eu/cosing ↗
  4. 4CALCIUM DISODIUM EDTA. CosIng u2014 European Commission database for information on cosmetic substances and ingredients. https://ec.europa.eu/growth/tools-databases/cosing/search?search=CALCIUM%20DISODIUM%20EDTA