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Tris(4-methoxy-3,5-dimethylphenyl)phosphine

三(4-甲氧基-3,5-二甲苯基)膦

Also known as: Phosphine, tris(4-methoxy-3,5-dimethylphenyl)-, Tris(3,5-dimethyl-4-methoxyphenyl)phosphine, Tris(4-methoxy-3,5-dimethylphenyl)phosphane, MFCD03840342

Tris(4-methoxy-3,5-dimethylphenyl)phosphine (CAS 121898-64-4) is a compound in the Solvents category listed in the Jingsj chemical database. It has the molecular formula C27H33O3P and a molecular weight of 436.523 g/mol. It is also known as Phosphine, tris(4-methoxy-3,5-dimethylphenyl)-, Tris(3,5-dimethyl-4-methoxyphenyl)phosphine and Tris(4-methoxy-3,5-dimethylphenyl)phosphane. Key properties include a melting point of 175-177ºC, a boiling point of 539.3±50.0 °C at 760 mmHg and a flash point of 351.1±30.4 °C. GHS signal word: Warning. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
121898-64-4
Jingsj CID
J-14147-7
Molecular Formula
C27H33O3P
Chinese Name
三(4-甲氧基-3,5-二甲苯基)膦
Molecular Weight
436.523 g/mol
Category
Solvents
Last updated
8/21/2026

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Physicochemical Properties

Melting Point175-177ºC
Boiling Point539.3±50.0 °C at 760 mmHg
Flash Point351.1±30.4 °C

GHS Safety & Compliance

IrritantSignal word: Warning

Frequently Asked Questions

What is the CAS number of Tris(4-methoxy-3,5-dimethylphenyl)phosphine?

The CAS number of Tris(4-methoxy-3,5-dimethylphenyl)phosphine is 121898-64-4.

What are the molecular formula and molecular weight of Tris(4-methoxy-3,5-dimethylphenyl)phosphine?

Tris(4-methoxy-3,5-dimethylphenyl)phosphine has molecular formula C27H33O3P and molecular weight 436.523 g/mol.

Is Tris(4-methoxy-3,5-dimethylphenyl)phosphine hazardous?

Tris(4-methoxy-3,5-dimethylphenyl)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(4-methoxy-3,5-dimethylphenyl)phosphine (CAS 121898-64-4)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-14147-7 (accessed 2026-10-24).

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