Lithium bis(trimethylsilyl)amide (CAS 4039-32-1) — formula C6H19NSi2, molecular weight 161.39; category organic chemicals.
Lithium bis(trimethylsilyl)amide (CAS 4039-32-1) is a chemical raw material in the organic chemicals category. Its molecular formula C6H19NSi2 comprises 6 C, 19 H, 1 N, 2 Si atoms. Its molecular weight is about 161.39. Reported physicochemical data: boiling point around 125 °C. As a sourcing and distribution partner we help locate and compare this item across domestic and cross-border channels, arranging samples and batch orders with full COA and compliance files.
| CAS Number | 4039-32-1 |
|---|---|
| Molecular Formula | C6H19NSi2 |
| Molecular Weight | 161.39 |
| Boiling Point | 125 °C |
| Applications | Used to deactivate chromatography support materials and to promote adhesion of photoresists in the electronics industry, Semiconductor Manufacturing, Deactivation of chromatographic support materials. In electronic industry as an adhesion promoter for photoresists on silicon, The substance is used as a chemical intermediate in the production of siloxane polymers, Waterproofing agent, Viscosity modifiers |
| Category | Organic Chemicals |
Documented applications: Used to deactivate chromatography support materials and to promote adhesion of photoresists in the electronics industry, Semiconductor Manufacturing, Deactivation of chromatographic support materials. In electronic industry as an adhesion promoter for photoresists on silicon, The substance is used as a chemical intermediate in the production of siloxane polymers, Waterproofing agent, Viscosity modifiers.
Lithium bis(trimethylsilyl)amide is a carbon-based organic compound with CAS registry number 4039-32-1 and molecular formula C6H19NSi2 (molecular weight 161.39), belonging to the organic chemicals segment of chemical raw materials.
CAS number: 4039-32-1
Its molecular formula C6H19NSi2 comprises 6 C, 19 H, 1 N, 2 Si atoms.
Also known as: Lithium bis(trimethylsilyl)amide · 双(三甲基甲硅烷基)氨基锂
Category: organic chemicals
The CAS registry number of Lithium bis(trimethylsilyl)amide is 4039-32-1.
Molecular formula C6H19NSi2, molecular weight 161.39.
It is also registered under: Lithium bis(trimethylsilyl)amide, 双(三甲基甲硅烷基)氨基锂.
Recorded applications: Used to deactivate chromatography support materials and to promote adhesion of photoresists in the electronics industry, Semiconductor Manufacturing, Deactivation of chromatographic support materials. In electronic industry as an adhesion promoter for photoresists on silicon, The substance is used as a chemical intermediate in the production of siloxane polymers, Waterproofing agent, Viscosity modifiers.
Category: Organic Chemicals.
Packaging is agreed per order, from lab-scale packs to bulk, and confirmed with each order rather than fixed on the page. A Certificate of Analysis (COA) ships with every batch and MSDS is available; where the end use carries a regulatory limit (food contact, pharmaceutical or cosmetic), state the standard at enquiry and the grade is set against it.
Independent reference data for Lithium bis(trimethylsilyl)amide (CAS 4039-32-1), compiled from public chemistry databases.
| CAS Registry Number | 4039-32-1 |
|---|---|
| PubChem CID | 13838 |
| Molecular formula | C6H19NSi2 |
| IUPAC name | [dimethyl-(trimethylsilylamino)silyl]methane |
| UNII (FDA) | H36C68P1BH |
| Molecular Weight | 161.39 |
|---|---|
| Hydrogen Bond Donor Count | 1 |
| Hydrogen Bond Acceptor Count | 1 |
| Rotatable Bond Count | 2 |
| Exact Mass | 161.10560268 |
| Monoisotopic Mass | 161.10560268 |
| Topological Polar Surface Area | 12 |
| Heavy Atom Count | 9 |
| Boiling Point | 125 °C |
|---|---|
| Boiling Point | 125 °C @760 [mm Hg] |
| Flash Point | 48 °F (NFPA, 2010) |
| Flash Point | 27 °C |
| Flash Point | 81 °F (27 °C) closed cup |
| Density | 0.7741 g/cu cm at 25 °C |
| Density | 0.76 @25 °C |
| Vapor Pressure | 13.8 [mmHg] |
| Vapor Pressure | 13.8 mm Hg at 25 °C |
| Vapor Pressure | 13.8 [mm Hg] @25 °C |
Hexamethyldisilazane; 999-97-3; HMDS; Bis(trimethylsilyl)amine; 1,1,1,3,3,3-Hexamethyldisilazane; Hexamethylsilazane; 1,1,1-Trimethyl-N-(trimethylsilyl)silanamine; Silanamine, 1,1,1-trimethyl-N-(trimethylsilyl)-; TSL 8802; hexamethyl disilazane; Disilazane, 1,1,1,3,3,3-hexamethyl-; SZ 6079; DTXSID2025395; H36C68P1BH; NSC-93895; DTXCID805395
| Regulatory & Food Contact | FDA Cumulative Estimated Daily Intake (CEDI): FCS |
|---|---|
| GHS notification summary | 5.8% (35 / 606) |
| GHS notification summary | 5.8% (35 / 606) |
|---|---|
| Reported hazard statements | H225 (93.7%), H302, H332 (27.1%), H311 (88.6%), H314 (31.8%), H412 (85.5%), H320, H331 |
This chemical does not meet GHS hazard criteria for 5.8% (35 of 606) of reports.
H225 (93.7%): Highly Flammable liquid and vapor [Danger Flammable liquids]
Lithium bis(trimethylsilyl)amide · CAS 4039-32-1 · C6H19NSi2. UNII H36C68P1BH. Boiling Point: 125 °C; Boiling Point: 125 °C @760 [mm Hg]; Flash Point: 48 °F (NFPA, 2010).
Source: PubChem / Wikidata; the batch COA governs where values differ.
Supplier: Jinan Shenghe Chemical Co., Ltd.
中文页面: 双(三甲基甲硅烷基)氨基锂