Ethylenediaminetetra(methylenephosphonic acid)

Also known as: EDTMP, EDTMPA, N,N,N',N'-Ethylenediaminetetrakis(methylenephosphonic acid), N,N,N',N'-Tetrakis(phosphonomethyl)ethylenediamine, Phosphonic acid, [1,2-ethanediylbis[nitrilobis(methylene)]]tetrakis-, [1,2-Ethanediylbis[Nitrilobis-(Methylene)]]Tetrakis-Phosphonic Acid, {1,2-Ethanediylbis[nitrilobis(methylene)]}tetrakis(phosphonic acid), {Ethane-1,2-diylbis[nitrilobis(methylene)]}tetrakis(phosphonic acid), Ethylenebis(nitrilodimethylene)tetraphosphonic acid, Dequest 2041

Ethylenediaminetetra(methylenephosphonic acid) (CAS 1429-50-1) is a compound in the Organic Acids category listed in the Jingsj chemical database. It has the molecular formula C6H20N2O12P4 and a molecular weight of 436.124 g/mol. Key properties include a melting point of 215-217°C, a boiling point of 878.7±75.0 °C at 760 mmHg, a density of 2.0±0.1 g/cm3 and a flash point of 485.2±37.1 °C. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.

1429-50-1

Jingsj CID

J-1112235-3

Molecular Formula

C₆H₂₀N₂O₁₂P₄

Molecular Weight

436.124 g/mol

Category

Organic Acids

Last updated

8/21/2026