Bis(diphenylphosphino)methane

Also known as: Bis(diphenylphosphine)methane, Methylenebis(diphenylphosphine), DPM, DPPM, 1,1-Bis(diphenylphosphino)methane, Ph2PCH2PPh2, Methanediylbis[diphenylphosphine], Tetraphenylmethylenediphosphine, bis(diphenylphosphanyl)methane, diphenylphosphanylmethyl(diphenyl)phosphane, MFCD00003537, EINECS 218-194-2

Bis(diphenylphosphino)methane (CAS 2071-20-7) is a compound in the Aromatic Hydrocarbons category listed in the Jingsj chemical database. It has the molecular formula C25H22P2 and a molecular weight of 384.39 g/mol. Key properties include a melting point of 118-119 °C(lit.), a boiling point of 497.2±28.0 °C at 760 mmHg and a flash point of 270.2±30.3 °C. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.: 2071-20-7
Jingsj CID: J-32133-2
Molecular Formula: C₂₅H₂₂P₂
Molecular Weight: 384.39 g/mol
Category: Aromatic Hydrocarbons
Last updated: 8/21/2026

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Physicochemical Properties

Melting Point	118-119 °C(lit.)
Boiling Point	497.2±28.0 °C at 760 mmHg
Flash Point	270.2±30.3 °C
Exact Mass	384.119659
PSA	27.18000
LogP	8.57
Vapor Pressure	0.0±1.2 mmHg at 25°C

Customs & Trade Information

HS Code	29310095

Frequently Asked Questions

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

The CAS number of Bis(diphenylphosphino)methane is 2071-20-7.

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

Bis(diphenylphosphino)methane has molecular formula C25H22P2 and molecular weight 384.39 g/mol.

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

For Bis(diphenylphosphino)methane, Upstream Products: Diphenylphosphine, Dibromomethane, Methanol; Downstream Products: Dimethyl sulfide, Diphenylphosphinic acid, Hydroquinone.

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

Last updated: 8/21/2026

How to cite: Jingsj. "Bis(diphenylphosphino)methane (CAS 2071-20-7)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-32133-2 (accessed 2026-11-07).

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