trimethyl(octadecyloxy)silane
硬脂氧基三甲基硅烷
Also known as: Silane, trimethyl(octadecyloxy)-, Trimethyl(Octadecoxy)Silane, Stearoxytrimethylsilane, Stearyloxytrimethylsilane, trimethyl stearyloxysilane, 1-Trimethylsilyloxyoctadecane, UNII-9862TW94B2, EINECS 242-554-8
trimethyl(octadecyloxy)silane (CAS 18748-98-6) is a compound in the Aliphatic Hydrocarbons category listed in the Jingsj chemical database. It has the molecular formula C21H46OSi and a molecular weight of 342.67500 g/mol. It is also known as Silane, trimethyl(octadecyloxy)-, Trimethyl(Octadecoxy)Silane and Stearoxytrimethylsilane. Key properties include a boiling point of 387.1ºC at 760mmHg, a density of 0.821g/cm3 and a flash point of 197.9ºC. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.
- CAS No.
- 18748-98-6
- Jingsj CID
- J-1308392-6
- Molecular Formula
- C21H46OSi
- Chinese Name
- 硬脂氧基三甲基硅烷
- Molecular Weight
- 342.67500 g/mol
- Category
- Aliphatic Hydrocarbons
- Last updated
- 8/21/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Boiling Point | 387.1ºC at 760mmHg |
|---|---|
| Density | 0.821g/cm3 |
| Flash Point | 197.9ºC |
Frequently Asked Questions
What is the CAS number of trimethyl(octadecyloxy)silane?
The CAS number of trimethyl(octadecyloxy)silane is 18748-98-6.
What are the molecular formula and molecular weight of trimethyl(octadecyloxy)silane?
trimethyl(octadecyloxy)silane has molecular formula C21H46OSi and molecular weight 342.67500 g/mol.
Data compiled from public chemical databases and supplier catalogs; supplier offers are provided by suppliers.
Last updated:
How to cite: Jingsj. "trimethyl(octadecyloxy)silane (CAS 18748-98-6)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1308392-6 (accessed 2026-10-25).
Data for reference only; verify specifications, grades and regulatory status with suppliers before purchase.