Dimethyl (2-hydroxyethyl)phosphonate

2-羟乙基膦酸二甲酯

Also known as: Dimethyl 2-hydroxyethylphosphonate, 2-Hydroxyethylphosphonic acid dimethyl ester, 2-Dimethoxyphosphorylethanol, Dimethyl (2-hydroxyethyl)phosphonate, Phosphonic acid, P-(2-hydroxyethyl)-, dimethyl ester

Dimethyl (2-hydroxyethyl)phosphonate (CAS 54731-72-5) is a compound in the Organic Acids category listed in the Jingsj chemical database. It has the molecular formula C4H11O4P and a molecular weight of 154.102 g/mol. It is also known as Dimethyl 2-hydroxyethylphosphonate, 2-Hydroxyethylphosphonic acid dimethyl ester and 2-Dimethoxyphosphorylethanol. Key properties include a boiling point of 236.4±23.0 °C at 760 mmHg, a density of 1.2±0.1 g/cm3 and a flash point of 96.7±22.6 °C. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
54731-72-5
Jingsj CID
J-25490-0
Molecular Formula
C4H11O4P
Chinese Name
2-羟乙基膦酸二甲酯
Molecular Weight
154.102 g/mol
Category
Organic Acids
Last updated
8/21/2026

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Physicochemical Properties

Boiling Point236.4±23.0 °C at 760 mmHg
Density1.2±0.1 g/cm3
Flash Point96.7±22.6 °C

Frequently Asked Questions

What is the CAS number of Dimethyl (2-hydroxyethyl)phosphonate?

The CAS number of Dimethyl (2-hydroxyethyl)phosphonate is 54731-72-5.

What are the molecular formula and molecular weight of Dimethyl (2-hydroxyethyl)phosphonate?

Dimethyl (2-hydroxyethyl)phosphonate has molecular formula C4H11O4P and molecular weight 154.102 g/mol.

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

Last updated:

How to cite: Jingsj. "Dimethyl (2-hydroxyethyl)phosphonate (CAS 54731-72-5)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-25490-0 (accessed 2026-10-22).

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