Database/Chelating/Pentasodium Ethylenediamine Tetramethylene Phosphonate
Mostly natural · ISO 16128

Is Pentasodium Ethylenediamine Tetramethylene Phosphonate natural?

Mostly. Ethylenediamine and methylene (formaldehyde) carbons are petrochemical; phosphonate oxygens/phosphorus and sodium counter-ions are mineral, natural-origin by this site's convention.

INCI namePentasodium Ethylenediamine Tetramethylene Phosphonate
CAS7651-99-2
FormulaC6H15N2Na5O12P4 · 546.03 Da
FunctionChelating · Viscosity Controlling
FeedstockSynthesised from petrochemical ethylenediamine, formaldehyde, and phosphorous acid…

How we scored it

Split C6H15N2Na5O12P4 (546.03 Da): petrochemical ethylenediamine/formaldehyde-derived backbone C6H12N2=112.2 Da; mineral phosphonate+Na+acidic H (Na5O12P4H3)=433.9 Da -> 433.9/546.03 = 0.79.
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

Synthesised from petrochemical ethylenediamine, formaldehyde, and phosphorous acid via a Mannich-type reaction, then partially neutralised with sodium hydroxide. No significant alternative commercial route exists.

In plain English

A water-softening ingredient that binds trace metal ions in a formula so they don't interfere with other ingredients. Built synthetically from an ethylene-based amine plus phosphorus-based groups, then neutralised with sodium.

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Structure

2D structure of Pentasodium Ethylenediamine Tetramethylene Phosphonate

pentasodium;[2-[bis[[hydroxy(oxido)phosphoryl]methyl]amino]ethyl-(phosphonatomethyl)amino]methyl-hydroxyphosphinate

PubChem CID 165629 ↗

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. 2Pentasodium Ethylenediamine Tetramethylene Phosphonate. PubChem CID 165629. National Center for Biotechnology Information. pubchem.ncbi.nlm.nih.gov ↗
  3. 3PENTASODIUM ETHYLENEDIAMINE TETRAMETHYLENE PHOSPHONATE. CosIng — European Commission cosmetic ingredient database. ec.europa.eu/cosing ↗
  4. 4PENTASODIUM ETHYLENEDIAMINE TETRAMETHYLENE PHOSPHONATE. CosIng u2014 European Commission database for information on cosmetic substances and ingredients. https://ec.europa.eu/growth/tools-databases/cosing/search?search=PENTASODIUM%20ETHYLENEDIAMINE%20TETRAMETHYLENE%20PHOSPHONATE