Diphenyl methylphosphonate

磷酸甲基二苯基酯

Also known as: DIPHENYL METHYLPHOSPHONATE, METHYLPHOSPHONIC ACID DIPHENYL ESTER, METHANEPHOSPHONIC ACID DIPHENYL ESTER, O,O-diphenyl methylphosphonate, [methyl(phenoxy)phosphoryl]oxybenzene, Phosphonic acid, methyl-, diphenyl ester, Bisphenyl methylphosphonate, EINECS 231-388-1

Diphenyl methylphosphonate (CAS 7526-26-3) is a compound in the Organic Acids category listed in the Jingsj chemical database. It has the molecular formula C13H13O3P and a molecular weight of 248.21400 g/mol. It is also known as DIPHENYL METHYLPHOSPHONATE, METHYLPHOSPHONIC ACID DIPHENYL ESTER and METHANEPHOSPHONIC ACID DIPHENYL ESTER. Key properties include a melting point of 32.5-37.5ºC(lit.), a boiling point of 344.3ºC at 760 mmHg, a density of 1.21 g/mL at 25ºC(lit.) and a flash point of 230 °F. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
7526-26-3
Jingsj CID
J-43435-9
Molecular Formula
C13H13O3P
Chinese Name
磷酸甲基二苯基酯
Molecular Weight
248.21400 g/mol
Category
Organic Acids
Last updated
8/21/2026

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Physicochemical Properties

Melting Point32.5-37.5ºC(lit.)
Boiling Point344.3ºC at 760 mmHg
Density1.21 g/mL at 25ºC(lit.)
Flash Point230 °F

Frequently Asked Questions

What is the CAS number of Diphenyl methylphosphonate?

The CAS number of Diphenyl methylphosphonate is 7526-26-3.

What are the molecular formula and molecular weight of Diphenyl methylphosphonate?

Diphenyl methylphosphonate has molecular formula C13H13O3P and molecular weight 248.21400 g/mol.

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

Last updated:

How to cite: Jingsj. "Diphenyl methylphosphonate (CAS 7526-26-3)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-43435-9 (accessed 2026-10-22).

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