Trimethylphosphine sulfide

三甲基硫膦

Also known as: Me3PS, Phosphine sulfide, trimethyl-, trimethyl(sulfanylidene)-λ5-phosphane, trimethyl(thioxo)phosphorane, trimethylphosphane sulfide, trimethylphosphine sulphide

Trimethylphosphine sulfide (CAS 2404-55-9) is a compound in the Organic Compounds category listed in the Jingsj chemical database. It has the molecular formula C3H9PS and a molecular weight of 108.14200 g/mol. It is also known as Me3PS, Phosphine sulfide, trimethyl- and trimethyl(sulfanylidene)-λ5-phosphane. Key properties include a melting point of 155-156ºC, a boiling point of 115.2ºC at 760 mmHg, a density of 0.982 g/cm3 and a flash point of 23.5ºC. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
2404-55-9
Jingsj CID
J-40436-7
Molecular Formula
C3H9PS
Chinese Name
三甲基硫膦
Molecular Weight
108.14200 g/mol
Category
Organic Compounds
Last updated
8/21/2026

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Physicochemical Properties

Melting Point155-156ºC
Boiling Point115.2ºC at 760 mmHg
Density0.982 g/cm3
Flash Point23.5ºC

Frequently Asked Questions

What is the CAS number of Trimethylphosphine sulfide?

The CAS number of Trimethylphosphine sulfide is 2404-55-9.

What are the molecular formula and molecular weight of Trimethylphosphine sulfide?

Trimethylphosphine sulfide has molecular formula C3H9PS and molecular weight 108.14200 g/mol.

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

Last updated:

How to cite: Jingsj. "Trimethylphosphine sulfide (CAS 2404-55-9)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-40436-7 (accessed 2026-10-23).

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