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Merck
CN

77626

N-tert-Butyldimethylsilyl-N-methyltrifluoroacetamide

derivatization grade (GC derivatization), LiChropur™, ≥98.0% (GC)

Synonym(s):

MTBSTFA

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About This Item

Linear Formula:
CF3CON(CH3)Si(CH3)2C(CH3)3
CAS Number:
77377-52-7
Molecular Weight:
241.33
NACRES:
NA.22
UNSPSC Code:
12352111
Beilstein/REAXYS Number:
3606546
MDL number:
MFCD00009671

Key Documents

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Product Name

N-tert-Butyldimethylsilyl-N-methyltrifluoroacetamide, derivatization grade (GC derivatization), LiChropur™, ≥98.0% (GC)

technique(s)

gas chromatography (GC): suitable

SMILES string

CN(C(=O)C(F)(F)F)[Si](C)(C)C(C)(C)C

InChI

1S/C9H18F3NOSi/c1-8(2,3)15(5,6)13(4)7(14)9(10,11)12/h1-6H3

InChI key

QRKUHYFDBWGLHJ-UHFFFAOYSA-N

grade

derivatization grade (GC derivatization)

assay

≥98.0% (GC)

form

liquid

quality

LiChropur™

reaction suitability

reagent type: derivatization reagent
reaction type: Silylations

refractive index

n20/D 1.402 (lit.)

bp

172-175 °C (lit.)

density

1.036 g/mL at 25 °C (lit.)

storage temp.

2-8°C

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Application

N-tert-Butyldimethylsilyl-N-methyltrifluoroacetamide may be used as a derivatizing reagent for the determination of methionine sulfoxide and methionine in blood plasma and chlorpyrifos, diazinon and their major metabolites in sludge and sludge-fertilized agricultural soils using gas-chromatography coupled to mass spectrometry technique.

General description

N-tert-Butyldimethylsilyl-N-methyltrifluoroacetamide is a silylating reagent which replaces the active hydrogen with tert-Butyldimethylsilyl group. The tert-Butyldimethylsilyl derivatives are found to be more resistant to hydrolysis and stable compared to trimethylsilyl (TMS) derivatives. This reagent is suitable for GC-MS analysis since it produces mass spectra, which can be easily interpreted. It is widely used for the silylation of different alcohols, thiols, phenols, carboxylic acids, amines, and amides.

Other Notes

Discover LiChropur™ reagents ideal for HPLC or LC-MS analysis

Legal Information

LiChropur is a trademark of Merck KGaA, Darmstadt, Germany

pictograms

Flame
GHS02

signalword

Warning

hcodes

H226

Hazard Classifications

Flam. Liq. 3

Storage Class

3 - Flammable liquids

wgk

WGK 3

flash_point_f

113.0 °F - closed cup

flash_point_c

45 °C - closed cup

Regulatory Information

危险化学品
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Certificates of Analysis (COA)

Lot/Batch Number
BCCN9357
BCCL5595
BCCK4857
BCCK1127
BCCH9690

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Highly selective sample preparation and gas chromatographic?mass spectrometric analysis of chlorpyrifos, diazinon and their major metabolites in sludge and sludge-fertilized agricultural soils
Diaz-Cruz SM and Barcelo D
Journal of Chromatography A, 1132(1-2), 21-27 (2006)
Advanced Gas Chromatography: Progress in Agricultural, Biomedical and Industrial Applications (2012)
Two stage derivatization with N-(tert.-butyldimethylsilyl)-N-methyl-trifluoroacetamide (MTBSTFA) and N-methyl-bis-(trifluoroacetamide)(MBTFA) for the gas-chromatographic analysis of OH-, SH-and NH-compounds
Schoene K, et al.
Fresenius Journal of Analytical Chemistry, 348(5-6), 364-370 (1994)
Ryuichi Mashima et al.
Analytical biochemistry, 313(1), 28-33 (2003-02-11)
Methionine sulfoxide is an oxidation product of methionine with reactive oxygen species via 2-electron-dependent mechanism. Such oxidants can be generated from activated neutrophils; therefore, methionine sulfoxide can be regarded as a biomarker of oxidative stress in vivo. We describe here

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