Lithium bis(trimethylsilyl)amide
Also known as: Lithium hexamethyldisilazide, LiHMDS, LHMDS, Hexamethyldisilazane lithium salt, 1,1,1,3,3,3-Hexamethyldisilazane lithium salt, Lithium 1,1,1,3,3,3-hexamethyldisilazan-2-ide, Bis(trimethylsilyl)amine lithium salt, Lithium, [bis(trimethylsilyl)amino]-, Silanamine, 1,1,1-trimethyl-N-(trimethylsilyl)-, lithium salt (1:1)
Lithium bis(trimethylsilyl)amide (CAS 4039-32-1) is a compound in the Organic Compounds category listed in the Jingsj chemical database. It has the molecular formula C6H19LiNSi2 and a molecular weight of 167.326 g/mol. Key properties include a melting point of 73°C, a boiling point of 55-56 °C, a density of 0.891 g/mL at 25 °C and a flash point of 8.9 °C. It is classified under GHS with signal word Danger and hazard statements H225 — Highly flammable liquid and vapour and H314 — Causes severe skin burns and eye damage. No supplier offers are currently listed; request a quote. Record last updated Nov 2, 2026.
- CAS No.
- 4039-32-1
- Jingsj CID
- J-44587-4
- Molecular Formula
- C6H19LiNSi2
- Molecular Weight
- 167.326 g/mol
- Category
- Organic Compounds
- Last updated
- 11/2/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Melting Point | 73°C |
|---|---|
| Boiling Point | 55-56 °C |
| Density | 0.891 g/mL at 25 °C |
| Flash Point | 8.9 °C |
| Exact Mass | 167.113785 |
| PSA | 3.24000 |
| LogP | 2.42250 |
| Refractive Index | n20/D 1.425(lit.) |
| Additional Property | hydrolysis |
GHS Safety & Compliance
- H225 — Highly flammable liquid and vapour
- H314 — Causes severe skin burns and eye damage
Customs & Trade Information
| HS Code | 2931900090 |
|---|---|
| Summary | 2931900090. other organo-inorganic compounds. VAT:17.0%. Tax rebate rate:13.0%. Supervision conditions:AB(certificate of inspection for goods inward,certificate of inspection for goods outward). MFN tariff:6.5%. General tariff:30.0% |
Frequently Asked Questions
What is the CAS number of Lithium bis(trimethylsilyl)amide?
The CAS number of Lithium bis(trimethylsilyl)amide is 4039-32-1.
What are the molecular formula and molecular weight of Lithium bis(trimethylsilyl)amide?
Lithium bis(trimethylsilyl)amide has molecular formula C6H19LiNSi2 and molecular weight 167.326 g/mol.
Is Lithium bis(trimethylsilyl)amide hazardous?
Lithium bis(trimethylsilyl)amide has GHS signal word Danger and hazard statements H225 — Highly flammable liquid and vapour; H314 — Causes severe skin burns and eye damage.
What are the upstream and downstream products of Lithium bis(trimethylsilyl)amide?
For Lithium bis(trimethylsilyl)amide, Upstream Products: 1,1,1,3,3,3-Hexamethyldisilazane, n-Butyllithium, Methyl bromoacetate; Downstream Products: Lithium trifluoromethanesulfonate, 2-Pyrimidinecarboximidamide, 2-Fluorobenzimidamide hydrochloride.
Data compiled from public chemical databases such as PubChem and supplier catalogs; supplier offers are provided by suppliers.
Last updated:
How to cite: Jingsj. "Lithium bis(trimethylsilyl)amide (CAS 4039-32-1)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-44587-4 (accessed 2026-11-09).
Data for reference only; verify product details with suppliers before purchase.