Tetraethyl propane-1,3-diphosphonate

四乙基丙烯-1,3-二膦酸酯

Also known as: 1,3-Bis(diethoxyphosphinyl)propane, 1,3-Bis(diethoxyphosphoryl)propane, Tetraethyl propylene-1,3-diphosphonate, Tetraethyl (1,3-propylene)bisphosphonate, Tetraethyl propane-1,3-diylbis(phosphonate), Propane-1,3-diphosphonic acid tetraethyl ester, Phosphonic acid, 1,3-propanediylbis-, tetraethyl ester, Phosphonic acid, P,P'-(1,3-propanediyl)bis-, tetraethyl ester, tetraethyltrimethylenediphosphonate, NSC 757131

Tetraethyl propane-1,3-diphosphonate (CAS 22401-25-8) is a compound in the Organic Acids category listed in the Jingsj chemical database. It has the molecular formula C11H26O6P2 and a molecular weight of 316.268 g/mol. It is also known as 1,3-Bis(diethoxyphosphinyl)propane, 1,3-Bis(diethoxyphosphoryl)propane and Tetraethyl propylene-1,3-diphosphonate. Key properties include a boiling point of 400.9±28.0 °C at 760 mmHg, a density of 1.1±0.1 g/cm3 and a flash point of 209.7±44.3 °C. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
22401-25-8
Jingsj CID
J-44108-7
Molecular Formula
C11H26O6P2
Chinese Name
四乙基丙烯-1,3-二膦酸酯
Molecular Weight
316.268 g/mol
Category
Organic Acids
Last updated
8/21/2026

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Physicochemical Properties

Boiling Point400.9±28.0 °C at 760 mmHg
Density1.1±0.1 g/cm3
Flash Point209.7±44.3 °C
Exact Mass316.120453
PSA90.68000
LogP0.88
Vapor Pressure0.0±0.9 mmHg at 25°C
Refractive Index1.433

Customs & Trade Information

HS Code2915900090
Summary2915900090 other saturated acyclic monocarboxylic acids and their anhydrides, halides, peroxides and peroxyacids; their halogenated, sulphonated, nitrated or nitrosated derivatives VAT:17.0% Tax rebate rate:9.0% Supervision conditions:AB(certificate of inspection for goods inward,certificate of inspection for goods outward) MFN tariff:5.5% General tariff:30.0%

Frequently Asked Questions

What is the CAS number of Tetraethyl propane-1,3-diphosphonate?

The CAS number of Tetraethyl propane-1,3-diphosphonate is 22401-25-8.

What are the molecular formula and molecular weight of Tetraethyl propane-1,3-diphosphonate?

Tetraethyl propane-1,3-diphosphonate has molecular formula C11H26O6P2 and molecular weight 316.268 g/mol.

Data compiled from public chemical databases and supplier catalogs; supplier offers are provided by suppliers.

Last updated:

How to cite: Jingsj. "Tetraethyl propane-1,3-diphosphonate (CAS 22401-25-8)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-44108-7 (accessed 2026-10-28).

Data for reference only; verify specifications, grades and regulatory status with suppliers before purchase.