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Potassium bis(trimethylsilyl)amide

ALDRICH/324671 - 95%

Synonym: Hexamethyldisilazane potassium salt; Potassium hexamethyldisilazide

CAS Number: 40949-94-8
Empirical Formula (Hill Notation): C6H18KNSi2
Molecular Weight: 199.48
MDL Number: MFCD00010330
Linear Formula: [(CH3)3Si]2NK
Product Type: Chemical
Catalog Number PKG Qty. Price Quantity
45-324671-5G 5 g
 $108.00
1/EA		 Add To Favorites
45-324671-25G 25 g
 $157.00
1/EA		 Add To Favorites
45-324671-100G 100 g
 $390.00
1/EA		 Add To Favorites
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: 324671-100G
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: 324671-25G
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: 324671-5G

 

assay 95%
density 0.877  g/cm3 at 20 °C
form solid
InChI 1S/C6H18NSi2.K/c1-8(2,3)7-9(4,5)6;/h1-6H3;/q-1;+1
InChI key IUBQJLUDMLPAGT-UHFFFAOYSA-N
Quality Level 200 
SMILES string C[Si](C)(C)N([K])[Si](C)(C)C
Application: Anionic initiator used in the preparation of poly(ethylene oxide). Sterically hindered base employed in selective cyclization reactions. Also used in the preparation of lanthanide complexes.
Features and Benefits: Potassium bis(trimethylsilyl)amide (KHMDS):• Easily available.
• Good selectivity for the benzylic C−H bonds.
• Good reactivity for sterically crowded C−H bonds.
General description: Potassium bis(trimethylsilyl)amide is commonly abbreviated as KHMDS with molecular formula [(CH3)3Si]2NK. It is widely used as Bronsted base in synthesis.

KHMDS is a base catalyst, that shows high activity and selectivity for the alkylation of alkylpyridines.
Packaging: 5, 25, 100 g in glass bottle
Purity 95%
Density 0.877  g/cm3 at 20 °C
UNSPSC 12352111

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