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N-Methyl-bis(trifluoroacetamide)

Name: <I>N</I>-Methyl-bis(trifluoroacetamide)
Brand: SIAL

derivatization grade (GC derivatization), LiChropur^™, ≥99.0% (GC)

Synonym(s):

MBTFA

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About This Item

Linear Formula:

CF₃CON(CH₃)COCF₃

CAS Number:

685-27-8

Molecular Weight:

223.07

UNSPSC Code:

23151817

NACRES:

NA.22

PubChem Substance ID:

329760134

EC Number:

211-680-5

Beilstein/REAXYS Number:

1878402

MDL number:

MFCD00000412

Assay:

≥99.0% (GC)

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Properties

grade

derivatization grade (GC derivatization)

Quality Segment

100

assay

≥99.0% (GC)

quality

LiChropur^™

reaction suitability

reagent type: derivatization reagent
reaction type: Acylations, reagent type: derivatization reagent
reaction type: Silylations

technique(s)

gas chromatography (GC): suitable

refractive index

n20/D 1.346

bp

121-122 °C (lit.)

density

1.547 g/mL at 25 °C

SMILES string

CN(C(=O)C(F)(F)F)C(=O)C(F)(F)F

InChI

1S/C5H3F6NO2/c1-12(2(13)4(6,7)8)3(14)5(9,10)11/h1H3

InChI key

AWGBWLXGUPTXHF-UHFFFAOYSA-N

Description

General description

N-Methyl-bis(trifluoroacetamide) is a common reagent used in the alkylation process, which targets highly polar, multi-functional compounds such as carbohydrates and amino acids.

Application

Reagent for introducing trifluoroacetyl group.

N-Methyl-bis(trifluoroacetamide) may be used as an on-column derivatization agent for the determination of amphetamine-type stimulants in biological samples, and ketamine, norketamine, dehydronorketamine in urine samples using gas chromatography coupled to mass spectrometry technique.
It is a derivatization agent in GC-MS technique used as an alternative to trifluoroacetyl anhydride (TFAA) for trifluoroacylating primary and secondary amines, and the hydroxyl group under mild non-acidic conditions.
Reagent for introducing trifluoroacetyl group. Suitable for the derivatization of alcohols, amines, amino acids, carbohydrates(mono-,di-,tri- and tetrasaccharides, carboxylic acids, hydroxyamines, 3-hydroxy-1-nitrosopyrrolidine, indolalkylamine, phenolalkylamines, pyridoxal (and other B₆ vitamers), and thiols.

Other Notes

Reagent for trifluoroacetylations under mild conditions

Reagent for trifluoroacetyl, N-trimethylsilyl-N-tifluoroacetyl and trimethylsilyl.

Legal Information

LiChropur is a trademark of Merck KGaA, Darmstadt, Germany

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This Item	M0789	15222	69479
Supelco 65943 N-Methyl-bis(trifluoroacetamide)	Supelco M0789 N-Methyl-bis(trifluoroacetamide)	Supelco 15222 N,O-Bis(trimethylsilyl)trifluoroacetamide	Supelco 69479 N-Methyl-N-(trimethylsilyl)trifluoroacetamide
description derivatization grade (GC derivatization), LiChropur^™, ≥99.0% (GC)	description derivatization grade (GC derivatization), LiChropur^™, ≥97.0% (GC)	description derivatization grade (GC derivatization), LiChropur^™, ≥99.0%	description derivatization grade (GC derivatization), LiChropur^™, ≥98.5%
assay ≥99.0% (GC)	assay ≥97.0% (GC)	assay ≥99.0%, ≥99.0% (GC)	assay ≥98.5% (GC)
Quality Level 100	Quality Level 100	Quality Level 100	Quality Level 200
reaction suitability reagent type: derivatization reagent reaction type: Silylations, reagent type: derivatization reagent reaction type: Acylations	reaction suitability reagent type: derivatization reagent reaction type: Acylations	reaction suitability reagent type: derivatization reagent reaction type: Silylations	reaction suitability reagent type: derivatization reagent reaction type: Silylations
refractive index n20/D 1.346	refractive index n20/D 1.346 (lit.)	refractive index n20/D 1.384	refractive index n20/D 1.38 (lit.), n20/D 1.380
bp 121-122 °C (lit.)	bp 121-122 °C (lit.)	bp 45-50 °C/14 mmHg (lit.)	bp 130-132 °C (lit.)
density 1.547 g/mL at 25 °C	density 1.547 g/mL at 25 °C	density 0.969 g/mL at 25 °C (lit.)	density 1.075 g/mL at 25 °C (lit.)

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pictograms

GHS02,GHS05

signalword

Danger

hcodes

H226,H314

pcodes

P210 - P233 - P240 - P280 - P303 + P361 + P353 - P305 + P351 + P338

Hazard Classifications

Flam. Liq. 3 - Skin Corr. 1B

Storage Class

3 - Flammable liquids

wgk

WGK 3

flash_point_f

113.0 °F - closed cup

flash_point_c

45 °C - closed cup

ppe

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

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