Trimethylsilyl polyphosphate
三甲基硅多磷酸盐
Also known as: Polyphosphoric acid trimethylsilyl ester, PPSE, Polyphosphoric acid trimethylsilyl ester, PPSE, MFCD00148705, Poly[[[(trimethylsilyl)oxy]phosphinylidene]oxy] (9CI)
Trimethylsilyl polyphosphate (CAS 40623-46-9) is a compound in the Organic Acids category listed in the Jingsj chemical database. It has the molecular formula C3H9O3PSi and a molecular weight of 152.16100 g/mol. It is also known as Polyphosphoric acid trimethylsilyl ester, PPSE and Polyphosphoric acid trimethylsilyl ester, PPSE. Key properties include a density of 1 g/mL at 25ºC(lit.) and a flash point of 40 °F. GHS signal word: Danger. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.
- CAS No.
- 40623-46-9
- Jingsj CID
- J-18456-4
- Molecular Formula
- C3H9O3PSi
- Chinese Name
- 三甲基硅多磷酸盐
- Molecular Weight
- 152.16100 g/mol
- Category
- Organic Acids
- Last updated
- 8/21/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Density | 1 g/mL at 25ºC(lit.) |
|---|---|
| Flash Point | 40 °F |
GHS Safety & Compliance
Frequently Asked Questions
What is the CAS number of Trimethylsilyl polyphosphate?
The CAS number of Trimethylsilyl polyphosphate is 40623-46-9.
What are the molecular formula and molecular weight of Trimethylsilyl polyphosphate?
Trimethylsilyl polyphosphate has molecular formula C3H9O3PSi and molecular weight 152.16100 g/mol.
Is Trimethylsilyl polyphosphate hazardous?
Trimethylsilyl polyphosphate 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. "Trimethylsilyl polyphosphate (CAS 40623-46-9)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-18456-4 (accessed 2026-10-24).
Data for reference only; verify specifications, grades and regulatory status with suppliers before purchase.