Bis(4-methylphenyl)phosphine oxide

双(对甲苯基)氧化膦

Also known as: Bis(p-tolyl)phosphine oxide, Di(p-tolyl)phosphine oxide, Di-p-tolylphosphine oxide, bis(4-methylphenyl)-oxophosphanium

Bis(4-methylphenyl)phosphine oxide (CAS 2409-61-2) is a compound in the Solvents category listed in the Jingsj chemical database. It has the molecular formula C14H15OP and a molecular weight of 230.242 g/mol. It is also known as Bis(p-tolyl)phosphine oxide, Di(p-tolyl)phosphine oxide and Di-p-tolylphosphine oxide. Key properties include a melting point of 96°C(lit.), a boiling point of 354.2±45.0 °C at 760 mmHg and a flash point of 168.0±28.7 °C. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
2409-61-2
Jingsj CID
J-1112153-4
Molecular Formula
C14H15OP
Chinese Name
双(对甲苯基)氧化膦
Molecular Weight
230.242 g/mol
Category
Solvents
Last updated
8/21/2026

No offers for this compound yet.

Request a quote

Physicochemical Properties

Melting Point96°C(lit.)
Boiling Point354.2±45.0 °C at 760 mmHg
Flash Point168.0±28.7 °C

Frequently Asked Questions

What is the CAS number of Bis(4-methylphenyl)phosphine oxide?

The CAS number of Bis(4-methylphenyl)phosphine oxide is 2409-61-2.

What are the molecular formula and molecular weight of Bis(4-methylphenyl)phosphine oxide?

Bis(4-methylphenyl)phosphine oxide has molecular formula C14H15OP and molecular weight 230.242 g/mol.

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

Last updated:

How to cite: Jingsj. "Bis(4-methylphenyl)phosphine oxide (CAS 2409-61-2)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1112153-4 (accessed 2026-10-25).

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