Dimethylphosphine oxide

二甲基氧化膦

Also known as: Dimethylphosphine oxide, Phosphine oxide, dimethyl-, Dimethyl(oxo)phosphanium, Dimethyloxophosphonium, EINECS 230-591-2, Dimethylphosphanoxid

Dimethylphosphine oxide (CAS 7211-39-4) is a compound in the Organic Compounds category listed in the Jingsj chemical database. It has the molecular formula C2H7OP and a molecular weight of 78.050 g/mol. It is also known as Phosphine oxide, dimethyl-, Dimethyl(oxo)phosphanium and Dimethyloxophosphonium. Key properties include a boiling point of 84.5±23.0 °C at 760 mmHg and a flash point of 4.9±22.6 °C. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
7211-39-4
Jingsj CID
J-1368144-7
Molecular Formula
C2H7OP
Chinese Name
二甲基氧化膦
Molecular Weight
78.050 g/mol
Category
Organic Compounds
Last updated
8/21/2026

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Physicochemical Properties

Boiling Point84.5±23.0 °C at 760 mmHg
Flash Point4.9±22.6 °C

Frequently Asked Questions

What is the CAS number of Dimethylphosphine oxide?

The CAS number of Dimethylphosphine oxide is 7211-39-4.

What are the molecular formula and molecular weight of Dimethylphosphine oxide?

Dimethylphosphine oxide has molecular formula C2H7OP and molecular weight 78.050 g/mol.

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

Last updated:

How to cite: Jingsj. "Dimethylphosphine oxide (CAS 7211-39-4)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1368144-7 (accessed 2026-10-25).

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