Lithium bis(trimethylsilyl)amide

C₆H₁₉LiNSi₂CAS 4039-32-1168.33 g/mol

Salt ratio not recorded. The source lists this compound as the parent acid and the metal without saying how many of each, so the formula and molar mass are for one of each. Check the formula on the supplier's label before you weigh it.

The catalogue keeps a structure only when a source confirms both the CAS number and a name, so it keeps none rather than the wrong compound.

Draw it in Covalent

Secondary amine

Properties

Molecular formula: C₆H₁₉LiNSi₂
Molar mass: 168.33 g/mol
Exact mass: 168.1216 Da
Density: 0.89 g/mL
Melting point: 70–71 °C
Boiling point: 110–115 °C (at 1 Torr)
logP: 1.86Crippen estimate
Polar surface area: 12.0 Å²
H-bond donors / acceptors: 1 / 1
Rotatable bonds: 2

Hazards

Danger

H228 Flammable solid43.9% of notifiers
H302 Harmful if swallowed52.5% of notifiers
H312 Harmful in contact with skin53.5% of notifiers
H314 Causes severe skin burns and eye damage100% of notifiers
H318 Causes serious eye damage57.6% of notifiers
H332 Harmful if inhaled53.5% of notifiers
H412 Harmful to aquatic life with long lasting effects53.5% of notifiers

Aggregated from 198 ECHA notifications, via PubChem; a share says how many notifiers assign that statement.

Precautionary statements

P210, P240, P241, P260, P261, P264, P264+P265, P270, P271, P273, P280, P301+P317, P301+P330+P331, P302+P352, P302+P361+P354, P304+P340, P305+P354+P338, P316, P317, P321, P330, P362+P364, P363, P370+P378, P405, P501

Identifiers

CAS number

4039-32-1

InChI

No InChI is shown: the source never said how many of each, so what we hold does not describe the compound as listed.

Names and synonyms

23 names · show all

Silanamine, 1,1,1-trimethyl-N-(trimethylsilyl)-, lithium salt (1:1)
Silanamine, 1,1,1-trimethyl-N-(trimethylsilyl)-, lithium salt
Lithium, [bis(trimethylsilyl)amino]-
Disilazane, 1,1,1,3,3,3-hexamethyl-, lithium salt
Disilazane, 1,1,1,3,3,3-hexamethyl-, Li deriv.
Lithium hexamethyldisilazane
Bis(trimethylsilyl)amidolithium
Hexamethyldisilazane lithium salt
Lithium bis(trimethylsilyl)amine
Lithium hexamethyldisilazide
1,1,1,3,3,3-Hexamethyldisilazane lithium salt
Lithiobis(trimethylsilyl)amide
Lithium hexamethyldisilazanide
Lithiohexamethyldisilazane
Lithium hexamethyldisilazanate
[1,1,1-Trimethyl-N-(trimethylsilyl)silanaminato]lithium
(Hexamethyldisilazane)lithium
1,1,1-Trimethyl-N-(trimethylsilyl)silanamine lithium salt
N-Lithiohexamethyldisilazane
N,N-Bis(trimethylsilyl)amine lithium salt
LiHMDS
Lithium bis(trimethylsilyl)amide(1-)
LHMDS

Safety data sheets

One stored sheet lists this compound in section 3, matched by the CAS number 4039-32-1. Each row opens the sheet with its composition and PDF.

Lithium bis(trimethylsilyl)amide ≤ 100 %Fisher Scientific UK · 2026-07-15

Open in the SDS library

Work with Lithium bis(trimethylsilyl)amide

Make a solutionWhat to weigh for any molarity and volume Isotope patternExact mass and the mass spectrum pattern

Similar compounds

Bis(trimethylsilyl)amine999-97-375 % similar Hexamethylcyclotrisilazane1009-93-431 % similar 2,2,4,4,6,6,8,8-Octamethylcyclotetrasilazane1020-84-431 % similar

Tanimoto similarity of circular fingerprints over the whole catalogue.

All similar compounds

Elsewhere

PubChem CAS Common Chemistry NIST WebBook Wikipedia