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Merck

394882

N-tert-Butyldimethylsilyl-N-methyltrifluoroacetamide

>97%

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
UNSPSC Code:
12352001
NACRES:
NA.22
PubChem Substance ID:
24864624
MDL number:
MFCD00009671
Beilstein/REAXYS Number:
3606546
Assay:
>97%
Form:
liquid

Key Documents

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InChI

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

SMILES string

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

InChI key

QRKUHYFDBWGLHJ-UHFFFAOYSA-N

grade

derivatization grade

assay

>97%

form

liquid

refractive index

n20/D 1.402 (lit.)

bp

172-175 °C (lit.)

density

1.036 g/mL at 25 °C (lit.)

functional group

amine, fluoro

storage temp.

2-8°C

Quality Level

200

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Application

N-tert-butyldimethylsilyl-N-methyltrifluoroacetamide (MTBSTFA) can be used:
  • As a derivatizing agent in the GC-MS analysis of hydroxylated fluorenes and in the GC analysis of amino acids.
  • As an efficient silylating agent for different alcohols, thiols, phenols, carboxylic acids, amines, and amides.
  • To functionalize multi-walled carbon nanotubes (MWCNTs) with polar groups.
MTBSTFA is reportedly much less moisture-sensitive than other silylating reagents used for GLC derivatization.

General description

N-tert-Butyldimethylsilyl-N-methyltrifluoroacetamide is a highly reactive silylating reagent commonly used for silyation of carboxylic acids, alcohols, amines, and thiols. It is also used as a protection, deprotection reagent.

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

ppe

Eyeshields, Faceshields, Gloves, type ABEK (EN14387) respirator filter

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Certificates of Analysis (COA)

Lot/Batch Number
BCCN7279
BCCM9389
BCCK2208
BCCH3121
BCCD5162

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Evaluating MTBSTFA derivatization reagents for measuring naphthenic acids by gas chromatography-mass spectrometry
Rozlyn YF,et al.
Analytical Methods, 2, 765-770 (2010)
Silylation of multi-walled carbon nanotubes
Aizawa M, et al.
Chemical Physics Letters, 368(1-2), 121-124 (2003)
Determination of β-blockers and β-agonists using gas chromatography and gas chromatography-mass spectrometry-a comparative study of the derivatization step
Caban M, et al.
Journal of Chromatography A, 1218(44), 8110-8122 (2011)
High-throughput analysis of selected urinary hydroxy polycyclic aromatic hydrocarbons by an innovative automated solid-phase microextraction
Stefano D,et al.
Molecules (Basel), 23, 1869-1869 (2018)
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)
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