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Sigma-Aldrich

N,N′-Bis(trimethylsilyl)urea

purum, ≥97.0% (N)

Synonym(s):

BSU

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About This Item

Linear Formula:
(CH3)3SiNHCONHSi(CH3)3
CAS Number:
Molecular Weight:
204.42
Beilstein:
1937452
EC Number:
MDL number:
UNSPSC Code:
12352100
PubChem Substance ID:
NACRES:
NA.22

grade

purum

Quality Level

Assay

≥97.0% (N)

form

solid

mp

219-221 °C (lit.)

SMILES string

C[Si](C)(C)NC(=O)N[Si](C)(C)C

InChI

1S/C7H20N2OSi2/c1-11(2,3)8-7(10)9-12(4,5)6/h1-6H3,(H2,8,9,10)

InChI key

MASDFXZJIDNRTR-UHFFFAOYSA-N

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Application

N,N′-Bis(trimethylsilyl)urea was used as a silylating agent for carboxylic acids and alcohols.

Other Notes

Silylating agent

Pictograms

Flame

Signal Word

Danger

Hazard Statements

Precautionary Statements

Hazard Classifications

Flam. Sol. 1

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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W. Verboom et al.
Synthesis, 807-807 (1981)
B.E. Cooper
Chemistry & Industry, 794-794 (1978)
N, N′-Bis [trimethylsilyl]-urea: A Useful Silylating Agent for Alcohols and Carboxylic Acids.
Verboom W, et al.
Synthesis, 1981(10), 807-809 (1981)
Process. Biochem., 9-9 (1980)

Articles

Results of a study involving the ability few Fluka silylating reagents to form GC-MS-compatible trimethylsilylmethyl derivatives of NSAIDs

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