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Tris(trimethylsilyl)phosphine

三(三甲基甲硅烷基)膦

Also known as: Tris(trimethylsilyl)phosphane, Tris(trimethylsilyl)phosphine, min. 98%, [Tris(trimethylsilyl)]phosphine, Phosphine, tris(trimethylsilyl)-, MFCD00015487

Tris(trimethylsilyl)phosphine (CAS 15573-38-3) is a compound in the Aliphatic Hydrocarbons category listed in the Jingsj chemical database. It has the molecular formula C9H27PSi3 and a molecular weight of 250.541 g/mol. It is also known as Tris(trimethylsilyl)phosphane, Tris(trimethylsilyl)phosphine, min. 98% and [Tris(trimethylsilyl)]phosphine. Key properties include a melting point of 24 °C, a boiling point of 243.5±0.0 °C at 760 mmHg, a density of 0.863 g/mL at 25 °C(lit.) and a flash point of 87.1±22.6 °C. GHS signal word: Danger. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
15573-38-3
Jingsj CID
J-14290-6
Molecular Formula
C9H27PSi3
Chinese Name
三(三甲基甲硅烷基)膦
Molecular Weight
250.541 g/mol
Category
Aliphatic Hydrocarbons
Last updated
8/21/2026

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Physicochemical Properties

Melting Point24 °C
Boiling Point243.5±0.0 °C at 760 mmHg
Density0.863 g/mL at 25 °C(lit.)
Flash Point87.1±22.6 °C

GHS Safety & Compliance

Flammable / IrritantSignal word: Danger

Frequently Asked Questions

What is the CAS number of Tris(trimethylsilyl)phosphine?

The CAS number of Tris(trimethylsilyl)phosphine is 15573-38-3.

What are the molecular formula and molecular weight of Tris(trimethylsilyl)phosphine?

Tris(trimethylsilyl)phosphine has molecular formula C9H27PSi3 and molecular weight 250.541 g/mol.

Is Tris(trimethylsilyl)phosphine hazardous?

Tris(trimethylsilyl)phosphine has GHS signal word Danger.

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

Last updated:

How to cite: Jingsj. "Tris(trimethylsilyl)phosphine (CAS 15573-38-3)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-14290-6 (accessed 2026-10-24).

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