Lithium bis(trimethylsilyl)amide
ALDRICH/324620 - 97%
Synonym: Hexamethyldisilazane lithium salt
CAS Number: 4039-32-1
Empirical Formula (Hill Notation): C6H18LiNSi2
Molecular Weight: 167.33
EC Number: 223-725-6
MDL Number: MFCD00008261
Linear Formula: [(CH3)3Si]2NLi
Product Type: Chemical
This picture is provided solely for illustration purposes. Optical properties of the actual product may deviate. Relevant product information is printed on labeled products and other accompanying or available information material. This image depicts SKU: 324620-250G
This picture is provided solely for illustration purposes. Optical properties of the actual product may deviate. Relevant product information is printed on labeled products and other accompanying or available information material. This image depicts SKU: 324620-50G
| assay | 97% |
| bp | 110-115 °C (at 1.33 hPa) |
| density | 0.860 g/mL at 25 °C (lit.) |
| form | solid |
| InChI | 1S/C6H18NSi2.Li/c1-8(2,3) |
| InChI key | YNESATAKKCNGOF-UHFFFAOYSA |
| mp | 70-71 °C |
| pH | (12.4 at 23.7 °C) |
| Quality Level | 200  |
| SMILES string | [Li]N([Si](C)(C)C)[Si](C) |
| 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. |
| 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. |
| Packaging: | 10, 50, 250 g in glass bottle |
| Symbol |   GHS02,GHS05 |
| Signal word | Danger |
| Hazard statements | H228 - H251 - H314 |
| Precautionary statements | P210 - P235 - P260 - P280 - P303 + P361 + P353 - P305 + P351 + P338 |
| Hazard Codes | F,C |
| Risk Statements | 11-14-34 |
| Safety Statements | 16-26-36/37/39-43-45 |
| RIDADR | UN 2925 8(4.1) / PGII |
| WGK Germany | WGK 2 |
| Flash Point(F) | 62.6 °F - closed cup |
| Flash Point(C) | 17 °C - closed cup |
| Supplemental Hazard Statements | EUH014 |
| Purity | 97% |
| bp | 110-115 °C (at 1.33 hPa) |
| mp | 70-71 °C; 70-71 °C |
| Density | 0.860 g/mL at 25 °C (lit.) |
| UNSPSC | 12352111 |