tris(tert-butyldimethylsilyl) phosphite
三(叔丁基二甲硅烷基)亚磷酸盐
Also known as: Silanol, (1,1-dimethylethyl)dimethyl-, phosphite (3:1) (9CI), tris[tert-butyl(dimethyl)silyl] phosphite
tris(tert-butyldimethylsilyl) phosphite (CAS 85197-27-9) is a compound in the Organic Acids category listed in the Jingsj chemical database. It has the molecular formula C18H45O3PSi3 and a molecular weight of 424.77800 g/mol. It is also known as Silanol, (1,1-dimethylethyl)dimethyl-, phosphite (3:1) (9CI) and tris[tert-butyl(dimethyl)silyl] phosphite. Key properties include a melting point of 41735ºC, a boiling point of 82-84ºC0.2 mm Hg, a density of 0.907 g/mL at 20ºC(lit.) and a flash point of 174.7ºC. GHS signal word: Danger. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.
- CAS No.
- 85197-27-9
- Jingsj CID
- J-1446663-0
- Molecular Formula
- C18H45O3PSi3
- Chinese Name
- 三(叔丁基二甲硅烷基)亚磷酸盐
- Molecular Weight
- 424.77800 g/mol
- Category
- Organic Acids
- Last updated
- 8/21/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Melting Point | 41735ºC |
|---|---|
| Boiling Point | 82-84ºC0.2 mm Hg |
| Density | 0.907 g/mL at 20ºC(lit.) |
| Flash Point | 174.7ºC |
GHS Safety & Compliance
Frequently Asked Questions
What is the CAS number of tris(tert-butyldimethylsilyl) phosphite?
The CAS number of tris(tert-butyldimethylsilyl) phosphite is 85197-27-9.
What are the molecular formula and molecular weight of tris(tert-butyldimethylsilyl) phosphite?
tris(tert-butyldimethylsilyl) phosphite has molecular formula C18H45O3PSi3 and molecular weight 424.77800 g/mol.
Is tris(tert-butyldimethylsilyl) phosphite hazardous?
tris(tert-butyldimethylsilyl) phosphite 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(tert-butyldimethylsilyl) phosphite (CAS 85197-27-9)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1446663-0 (accessed 2026-10-25).
Data for reference only; verify specifications, grades and regulatory status with suppliers before purchase.