Skip to Content
Merck
CN

Key Documents

View All Documentation

324620

Lithium bis(trimethylsilyl)amide

97%

Synonym(s):

Hexamethyldisilazane lithium salt

Sign In to View Organizational & Contract Pricing.

Select a Size

Change View

About This Item

Linear Formula:
[(CH3)3Si]2NLi
CAS Number:
4039-32-1
Molecular Weight:
167.33
NACRES:
NA.22
PubChem Substance ID:
24859455
UNSPSC Code:
12352111
EC Number:
223-725-6
MDL number:
MFCD00008261
eCl@ss:
32150917
Assay:
97%
Form:
solid
Technical Service
Need help? Our team of experienced scientists is here for you.
Let Us Assist

Quality Segment

assay

97%

form

solid

pH

(12.4 at 23.7 °C)

bp

110-115 °C (at 1.33 hPa)

mp

70-71 °C

density

0.860 g/mL at 25 °C (lit.)

SMILES string

[Li]N([Si](C)(C)C)[Si](C)(C)C

InChI

1S/C6H18NSi2.Li/c1-8(2,3)7-9(4,5)6;/h1-6H3;/q-1;+1

InChI key

YNESATAKKCNGOF-UHFFFAOYSA-N

General description

Lithium bis(trimethylsilyl)amide is a non-nucleophilic strong Brønsted base, which is generally soluble in most of the nonpolar organic solvents. It is most commonly employed in organic reactions.

Application

Base employed in generating enolates for the preparation of lactone precursors, pyranones, and cyclohexanes.
Used to catalyze the addition of phosphine P-H bonds to carbodiimides leading to phosphaguanidines. Also used in a novel three-step synthesis of disubstituted 1,2,5-thiadiazoles.

Still not finding the right product?

Explore all of our products under Lithium bis(trimethylsilyl)amide

Pictograms

FlameCorrosion
GHS02,GHS05

Signal Word

Danger

Hazard Codes

H228,H251,H314

Hazard Classifications

Eye Dam. 1 - Flam. Sol. 1 - Self-heat. 1 - Skin Corr. 1B

supp_hazards

EUH014

Storage Class

4.2 - Pyrophoric and self-heating hazardous materials

Flash Point (°F)

62.6 °F - closed cup

Flash Point (°C)

17 °C - closed cup

PPE (personal protective equipment)

Eyeshields, Faceshields, Gloves, type P3 (EN 143) respirator cartridges

Choose from one of the most recent versions:

Certificates of Analysis (COA)

Lot/Batch Number

Don't see the Right Version?

If you require a particular version, you can look up a specific certificate by the Lot or Batch number.

Search for a COA

Already Own This Product?

Find documentation for the products that you have recently purchased in the Document Library.

Visit the Document Library