324671

Potassium bis(trimethylsilyl)amide

95%

Manufacturer: Sigma Aldrich

CAS Number: 40949-94-8

Synonym(S): Hexamethyldisilazane potassium salt, Potassium hexamethyldisilazide

Select a Size

Pack Size SKU Availability Price
5 G 324671-5-G In Stock ₹ 10,110.55
25 G 324671-25-G In Stock ₹ 23,663.45
100 G 324671-100-G In Stock ₹ 31,749.73

324671 - 5 G

₹ 10,110.55

In Stock

Quantity

1

Base Price: ₹ 10,110.55

GST (18%): ₹ 1,819.899

Total Price: ₹ 11,930.449

Quality Level

200

Assay

95%

SMILES string

C[Si](C)(C)N([K])[Si](C)(C)C

InChI

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

InChI key

IUBQJLUDMLPAGT-UHFFFAOYSA-N

Other Options

Image Product Name Manufacturer Price Range
50-165-7001
Sigma Aldrich Fine Chemicals Biosciences Potassium bis(trimethylsilyl)amide 95 | 40949-94-8 | MFCD00010330
Sigma Aldrich Fine Chemicals Biosciences ₹ 40,876.29
50-183-2866
Sigma Aldrich Fine Chemicals Biosciences Potassium bis(trimethylsilyl)amide solution | 40949-94-8 | MFCD00010330 | 100 mL
Sigma Aldrich Fine Chemicals Biosciences ₹ 10,418.64
50-183-2870
Sigma Aldrich Fine Chemicals Biosciences Potassium bis(trimethylsilyl)amide | 40949-94-8 | MFCD00010330 | 25g
Sigma Aldrich Fine Chemicals Biosciences ₹ 16,455.75
50-183-2872
Sigma Aldrich Fine Chemicals Biosciences Potassium bis(trimethylsilyl)amide solution|40949-94-8 | MFCD00010330 | 100ml
Sigma Aldrich Fine Chemicals Biosciences ₹ 18,551.97
50-183-2873
Sigma Aldrich Fine Chemicals Biosciences Potassium bis(trimethylsilyl)amide solution | 40949-94-8 | MFCD00010330 | 4x25mL
Sigma Aldrich Fine Chemicals Biosciences ₹ 17,608.25
702722
Potassium bis(trimethylsilyl)amide solution
Sigma Aldrich ₹ 24,670.18 - ₹ 1,15,232.13
277304
Potassium bis(trimethylsilyl)amide solution
Sigma Aldrich ₹ 5,109.40 - ₹ 87,803.78
775061
Potassium bis(trimethylsilyl)amide solution
Sigma Aldrich ₹ 18,740.00 - ₹ 57,060.00
702722
Potassium bis(trimethylsilyl)amide solution
Sigma Aldrich ₹ 24,670.18 - ₹ 1,15,232.13
324671
Potassium bis(trimethylsilyl)amide
Sigma Aldrich ₹ 10,110.55 - ₹ 31,749.73

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Description

  • 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.[1][1][1]KHMDS is a base catalyst, that shows high activity and selectivity for the alkylation of alkylpyridines.[2]
  • Application: Anionic initiator used in the preparation of poly(ethylene oxide).[3] Sterically hindered base employed in selective cyclization reactions.[4] Also used in the preparation of lanthanide complexes.[5][6]
  • 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.

SAFETY INFORMATION

Pictograms

GHS05

Signal Word

Danger

Hazard Statements

H314

Precautionary Statements

P260 - P280 - P303 + P361 + P353 - P304 + P340 + P310 - P305 + P351 + P338 - P363

Hazard Classifications

Eye Dam. 1 - Skin Corr. 1B

Supplementary Hazards

EUH014

WGK

WGK 3

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

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C[Si](C)(C)N([K])[Si](C)(C)C

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IUBQJLUDMLPAGT-UHFFFAOYSA-N

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InChI key:
JSFITYFUKSFPBZ-UHFFFAOYSA-N