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. It is classified under GHS with signal word Danger and hazard statements H250, H315 — Causes skin irritation and H319 — Causes serious eye irritation. 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
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Melting Point | 24 °C |
|---|---|
| Boiling Point | 243.5±0.0 °C at 760 mmHg |
| Density | 0.863 g/mL at 25 °C(lit.) |
| Flash Point | 87.1±22.6 °C |
| Exact Mass | 250.115814 |
| PSA | 13.59000 |
| LogP | 4.82 |
| Vapor Pressure | 0.1±0.4 mmHg at 25°C |
| Refractive Index | n20/D 1.502(lit.) |
GHS Safety & Compliance
- H250
- H315 — Causes skin irritation
- H319 — Causes serious eye irritation
- H335 — May cause respiratory irritation
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 and hazard statements H250; H315 — Causes skin irritation; H319 — Causes serious eye irritation.
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 2026-10-28).
Data for reference only; verify specifications, grades and regulatory status with suppliers before purchase.