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N-Methyl-N-(trimethylsilyl)trifluoroacetamide

Name: <I>N</I>-Methyl-<I>N</I>-(trimethylsilyl)trifluoroacetamide
Brand: ALDRICH
Price: 133 USD
Availability: InStock

synthesis grade

Synonym(s):

N-Trimethylsilyl-N-methyl trifluoroacetamide, MSTFA

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Size/SKU	Availability	Price
5 mL	Available to ship TODAYfromMILWAUKEE	$133.00
10 x 1 mL	Available to ship TODAYfromMILWAUKEE	$203.00
25 mL	Available to ship TODAYfromMILWAUKEE	$406.00

About This Item

Linear Formula:

CF₃CON(CH₃)Si(CH₃)₃

CAS Number:

24589-78-4

Molecular Weight:

199.25

UNSPSC Code:

41115710

NACRES:

NA.22

PubChem Substance ID:

24864622

EC Number:

246-331-6

Beilstein/REAXYS Number:

1941550

MDL number:

MFCD00000411

Assay:

≥98%

Form:

liquid

$133.00

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Properties

Quality Segment

100

grade

derivatization grade ((GC derivatization)), synthesis grade

vapor density

>1 (vs air)

vapor pressure

8.8 mmHg ( 27 °C)

assay

≥98%

form

liquid

reaction suitability

reagent type: derivatization reagent
reaction type: Silylations

refractive index

n20/D 1.38 (lit.)

bp

130-132 °C (lit.)

density

1.075 g/mL at 25 °C (lit.)

storage temp.

2-8°C

SMILES string

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

InChI

1S/C6H12F3NOSi/c1-10(12(2,3)4)5(11)6(7,8)9/h1-4H3

InChI key

MSPCIZMDDUQPGJ-UHFFFAOYSA-N

Description

General description

N-Methyl-N-(trimethylsilyl)trifluoroacetamide (MSTFA) is a derivatizing reagent. It can be used as alternatives to diazomethane.[1]

Application

Silylating agent used to form volatile derivatives for GC-MS analysis.[2]
Improved silylation procedure for simultaneous detection of steroid hormones 17-α-ethynylestradiol and estrone.[3]

Other Notes

Reagent for trimethylsilyl.

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1 of 1

This Item	69479	M7891	8.41102
Supelco 394866 N-Methyl-N-(trimethylsilyl)trifluoroacetamide	Supelco 69479 N-Methyl-N-(trimethylsilyl)trifluoroacetamide	Supelco M7891 N-Methyl-N-(trimethylsilyl)trifluoroacetamide	Sigma-Aldrich 8.41102 N-Methyl-N-trimethylsilyl-trifluoroacetamide
assay ≥98%	assay ≥98.5% (GC)	assay -	assay ≥97.0% (GC)
Quality Level 100	Quality Level 200	Quality Level 100	Quality Level 200
reaction suitability reagent type: derivatization reagent reaction type: Silylations	reaction suitability reagent type: derivatization reagent reaction type: Silylations	reaction suitability -	reaction suitability -
density 1.075 g/mL at 25 °C (lit.)	density 1.075 g/mL at 25 °C (lit.)	density 1.07 g/mL at 25 °C (lit.), 1.075 g/mL at 25 °C (lit.)	density 1.085 g/cm³
storage temp. 2-8°C	storage temp. 2-8°C	storage temp. 2-8°C	storage temp. 2-30°C
refractive index n20/D 1.38 (lit.)	refractive index n20/D 1.38 (lit.), n20/D 1.380	refractive index n20/D 1.38 (lit.)	refractive index -

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pictograms

GHS02,GHS07

signalword

Warning

hcodes

H226,H315,H319,H335

pcodes

P210 - P233 - P240 - P241 - P303 + P361 + P353 - P305 + P351 + P338

Hazard Classifications

Eye Irrit. 2 - Flam. Liq. 3 - Skin Irrit. 2 - STOT SE 3

target_organs

Respiratory system

Storage Class

3 - Flammable liquids

wgk

WGK 3

flash_point_f

77.0 °F - closed cup

flash_point_c

25 °C - closed cup

ppe

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

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