Diphenyl(trimethylsilyl)phosphine

二苯基(三甲基硅基)膦

Also known as: (Diphenylphosphino)trimethylsilane, Trimethylsilyl(diphenyl)phosphine, MFCD00015589, Phosphine, diphenyl(trimethylsilyl)-, Diphenyl(trimethylsilyl)phosphine technical grade

Diphenyl(trimethylsilyl)phosphine (CAS 17154-34-6) is a compound in the Aromatic Hydrocarbons category listed in the Jingsj chemical database. It has the molecular formula C15H19PSi and a molecular weight of 258.371 g/mol. It is also known as (Diphenylphosphino)trimethylsilane, Trimethylsilyl(diphenyl)phosphine and MFCD00015589. Key properties include a boiling point of 324.7±15.0 °C at 760 mmHg, a density of 1.009 g/mL at 25 °C(lit.) and a flash point of 150.2±20.4 °C. GHS signal word: Danger. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
17154-34-6
Jingsj CID
J-18566-6
Molecular Formula
C15H19PSi
Chinese Name
二苯基(三甲基硅基)膦
Molecular Weight
258.371 g/mol
Category
Aromatic Hydrocarbons
Last updated
8/21/2026

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Physicochemical Properties

Boiling Point324.7±15.0 °C at 760 mmHg
Density1.009 g/mL at 25 °C(lit.)
Flash Point150.2±20.4 °C

GHS Safety & Compliance

FlammableSignal word: Danger

Frequently Asked Questions

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

The CAS number of Diphenyl(trimethylsilyl)phosphine is 17154-34-6.

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

Diphenyl(trimethylsilyl)phosphine has molecular formula C15H19PSi and molecular weight 258.371 g/mol.

Is Diphenyl(trimethylsilyl)phosphine hazardous?

Diphenyl(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. "Diphenyl(trimethylsilyl)phosphine (CAS 17154-34-6)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-18566-6 (accessed 2026-10-22).

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