Potassium bis(trimethylsilyl)amide
双(三甲基硅烷基)氨基钾
Also known as: Potassium hexamethyldisilazide, KHMDS, 1,1,1,3,3,3-Hexamethyldisilazane potassium salt, Potassium 1,1,1,3,3,3-hexamethyldisilazan-2-ide, Silanamine, 1,1,1-trimethyl-N-(trimethylsilyl)-, potassium salt (1:1), potassium,bis(trimethylsilyl)azanide, MFCD00010330, Hexamethyldisilazane potassium salt, POTASSIUM BIS(TRIMETHYLSILYL)AMIDE, POTASSIUM HEXAMETHYLDISILAZIDE, 1-SI-1&1&NK-SI-1&1&1, 1-SI-1&1&M-SI-1&1&1 &&K salt
Potassium bis(trimethylsilyl)amide (CAS 40949-94-8) is a compound in the Aliphatic Hydrocarbons category listed in the Jingsj chemical database. It has the molecular formula C6H18KNSi2 and a molecular weight of 199.483 g/mol. It is also known as Potassium hexamethyldisilazide, KHMDS and 1,1,1,3,3,3-Hexamethyldisilazane potassium salt. Key properties include a boiling point of 111 °C, a density of 0.877 g/mL at 25 °C and a flash point of 45 °F. GHS signal word: Danger. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.
- CAS No.
- 40949-94-8
- Jingsj CID
- J-44469-7
- Molecular Formula
- C6H18KNSi2
- Chinese Name
- 双(三甲基硅烷基)氨基钾
- Molecular Weight
- 199.483 g/mol
- Category
- Aliphatic Hydrocarbons
- Last updated
- 8/21/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Boiling Point | 111 °C |
|---|---|
| Density | 0.877 g/mL at 25 °C |
| Flash Point | 45 °F |
GHS Safety & Compliance
Frequently Asked Questions
What is the CAS number of Potassium bis(trimethylsilyl)amide?
The CAS number of Potassium bis(trimethylsilyl)amide is 40949-94-8.
What are the molecular formula and molecular weight of Potassium bis(trimethylsilyl)amide?
Potassium bis(trimethylsilyl)amide has molecular formula C6H18KNSi2 and molecular weight 199.483 g/mol.
Is Potassium bis(trimethylsilyl)amide hazardous?
Potassium bis(trimethylsilyl)amide 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. "Potassium bis(trimethylsilyl)amide (CAS 40949-94-8)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-44469-7 (accessed 2026-10-22).
Data for reference only; verify specifications, grades and regulatory status with suppliers before purchase.