Tris(2-methoxyphenyl)phosphine

三(2-甲氧基苯基)膦

Also known as: Tris(o-methoxyphenyl)phosphine, Tris(o-anisyl)phosphine, Tri(o-anisyl)phosphine, Tris(2-methoxyphenyl)phosphine

Tris(2-methoxyphenyl)phosphine (CAS 4731-65-1) is a compound in the Aromatic Hydrocarbons category listed in the Jingsj chemical database. It has the molecular formula C21H21O3P and a molecular weight of 352.363 g/mol. It is also known as Tris(o-methoxyphenyl)phosphine, Tris(o-anisyl)phosphine and Tri(o-anisyl)phosphine. Key properties include a melting point of 204-208 °C, a boiling point of 477.3±40.0 °C at 760 mmHg and a flash point of 302.5±27.6 °C. GHS signal word: Warning. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
4731-65-1
Jingsj CID
J-1412559-7
Molecular Formula
C21H21O3P
Chinese Name
三(2-甲氧基苯基)膦
Molecular Weight
352.363 g/mol
Category
Aromatic Hydrocarbons
Last updated
8/21/2026

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Physicochemical Properties

Melting Point204-208 °C
Boiling Point477.3±40.0 °C at 760 mmHg
Flash Point302.5±27.6 °C

GHS Safety & Compliance

IrritantSignal word: Warning

Frequently Asked Questions

What is the CAS number of Tris(2-methoxyphenyl)phosphine?

The CAS number of Tris(2-methoxyphenyl)phosphine is 4731-65-1.

What are the molecular formula and molecular weight of Tris(2-methoxyphenyl)phosphine?

Tris(2-methoxyphenyl)phosphine has molecular formula C21H21O3P and molecular weight 352.363 g/mol.

Is Tris(2-methoxyphenyl)phosphine hazardous?

Tris(2-methoxyphenyl)phosphine has GHS signal word Warning.

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

Last updated:

How to cite: Jingsj. "Tris(2-methoxyphenyl)phosphine (CAS 4731-65-1)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1412559-7 (accessed 2026-10-25).

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