Bis(diphenylphosphino)methane monooxide

双(二苯基膦)甲烷一氧化物

Also known as: (Diphenylphosphino)(diphenylphosphinyl)methane, diphenylphosphorylmethyl(diphenyl)phosphane, Bis(diphenylphosphino)methane oxide, Diphenyl(diphenylphosphinomethyl)phosphine oxide, Phosphine oxide, [(diphenylphosphino)methyl]diphenyl-, DPPOM

Bis(diphenylphosphino)methane monooxide (CAS 23176-18-3) is a compound in the Aromatic Hydrocarbons category listed in the Jingsj chemical database. It has the molecular formula C25H22OP2 and a molecular weight of 400.38900 g/mol. It is also known as (Diphenylphosphino)(diphenylphosphinyl)methane, diphenylphosphorylmethyl(diphenyl)phosphane and Bis(diphenylphosphino)methane oxide. Key properties include a melting point of 187-191ºC(lit.), a boiling point of 517.1ºC at 760 mmHg and a flash point of 266.6ºC. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
23176-18-3
Jingsj CID
J-30008-1
Molecular Formula
C25H22OP2
Chinese Name
双(二苯基膦)甲烷一氧化物
Molecular Weight
400.38900 g/mol
Category
Aromatic Hydrocarbons
Last updated
8/21/2026

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Physicochemical Properties

Melting Point187-191ºC(lit.)
Boiling Point517.1ºC at 760 mmHg
Flash Point266.6ºC
Exact Mass400.11500
PSA40.47000
LogP5.09090
Vapor Pressure2.75E-10mmHg at 25°C

Customs & Trade Information

HS Code2902909090
Summary2902909090 other aromatic hydrocarbons。Supervision conditions:None。VAT:17.0%。Tax rebate rate:9.0%。MFN tariff:2.0%。General tariff:30.0%

Frequently Asked Questions

What is the CAS number of Bis(diphenylphosphino)methane monooxide?

The CAS number of Bis(diphenylphosphino)methane monooxide is 23176-18-3.

What are the molecular formula and molecular weight of Bis(diphenylphosphino)methane monooxide?

Bis(diphenylphosphino)methane monooxide has molecular formula C25H22OP2 and molecular weight 400.38900 g/mol.

What are the upstream and downstream products of Bis(diphenylphosphino)methane monooxide?

For Bis(diphenylphosphino)methane monooxide, Downstream Products: Diphenylphosphinic acid.

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

Last updated:

How to cite: Jingsj. "Bis(diphenylphosphino)methane monooxide (CAS 23176-18-3)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-30008-1 (accessed 2026-10-28).

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