Dimethyl phenylphosphonate

苯基膦酸二甲酯

Also known as: Dimethyl benzenephosphonate, Benzenephosphonic acid dimethyl ester, O,O-Dimethyl phenylphosphonate, Phenylphosphonic acid dimethyl ester, Dimethyl (phenyl)phosphonate, dimethoxyphosphorylbenzene, o,o-dimethylphenylphosphonate, Phosphonic acid, phenyl-, dimethyl ester, Phosphonic acid, P-phenyl-, dimethyl ester

Dimethyl phenylphosphonate (CAS 2240-41-7) is a compound in the Organic Acids category listed in the Jingsj chemical database. It has the molecular formula C8H11O3P and a molecular weight of 186.145 g/mol. It is also known as Dimethyl benzenephosphonate, Benzenephosphonic acid dimethyl ester and O,O-Dimethyl phenylphosphonate. Key properties include a boiling point of 247.0±9.0 °C at 760 mmHg, a density of 1.2±0.1 g/cm3 and a flash point of 117.3±39.1 °C. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
2240-41-7
Jingsj CID
J-45564-4
Molecular Formula
C8H11O3P
Chinese Name
苯基膦酸二甲酯
Molecular Weight
186.145 g/mol
Category
Organic Acids
Last updated
8/21/2026

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Physicochemical Properties

Boiling Point247.0±9.0 °C at 760 mmHg
Density1.2±0.1 g/cm3
Flash Point117.3±39.1 °C

Frequently Asked Questions

What is the CAS number of Dimethyl phenylphosphonate?

The CAS number of Dimethyl phenylphosphonate is 2240-41-7.

What are the molecular formula and molecular weight of Dimethyl phenylphosphonate?

Dimethyl phenylphosphonate has molecular formula C8H11O3P and molecular weight 186.145 g/mol.

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

Last updated:

How to cite: Jingsj. "Dimethyl phenylphosphonate (CAS 2240-41-7)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-45564-4 (accessed 2026-10-22).

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