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Bis[2-(diphenylphosphino)phenyl] ether oxide

Also known as: DPEPO, Bis[2-((oxo)diphenylphosphino)phenyl] ether, (oxybis(2,1-phenylene))bis(diphenylphosphine oxide), Phosphine oxide, 1,1'-(oxydi-2,1-phenylene)bis[1,1-diphenyl-, Bis[2-[(oxo)diphenylphosphino]phenyl] Ether (purified by sublimation)

Bis[2-(diphenylphosphino)phenyl] ether oxide (CAS 808142-23-6) is a compound in the Ethers category listed in the Jingsj chemical database. It has the molecular formula C36H28O3P2 and a molecular weight of 570.553 g/mol. Key properties include a melting point of 280℃, a boiling point of 753.3±60.0 °C at 760 mmHg, a density of 1.3±0.1 g/cm3 and a flash point of 421.5±53.2 °C. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
808142-23-6
Jingsj CID
J-1527194-9
Molecular Formula
C36H28O3P2
Molecular Weight
570.553 g/mol
Category
Ethers
Last updated
8/21/2026

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Physicochemical Properties

Melting Point280℃
Boiling Point753.3±60.0 °C at 760 mmHg
Density1.3±0.1 g/cm3
Flash Point421.5±53.2 °C
Exact Mass570.151367
PSA62.99000
LogP5.51
Vapor Pressure0.0±2.4 mmHg at 25°C
Refractive Index1.671
Storage Conditions2~8°C

Frequently Asked Questions

What is the CAS number of Bis[2-(diphenylphosphino)phenyl] ether oxide?

The CAS number of Bis[2-(diphenylphosphino)phenyl] ether oxide is 808142-23-6.

What are the molecular formula and molecular weight of Bis[2-(diphenylphosphino)phenyl] ether oxide?

Bis[2-(diphenylphosphino)phenyl] ether oxide has molecular formula C36H28O3P2 and molecular weight 570.553 g/mol.

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

Last updated:

How to cite: Jingsj. "Bis[2-(diphenylphosphino)phenyl] ether oxide (CAS 808142-23-6)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1527194-9 (accessed 2026-11-07).

Data for reference only; verify product details with suppliers before purchase.