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394866

N-Methyl-N-(trimethylsilyl)trifluoroacetamide

synthesis grade

Synonym(s):

N-Trimethylsilyl-N-methyl trifluoroacetamide, MSTFA

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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
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Quality Segment

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

General description

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

Application

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

Other Notes

Reagent for trimethylsilyl.

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Pictograms

FlameExclamation mark
GHS02,GHS07

Signal Word

Warning

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 (personal protective equipment)

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

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