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394866

Supelco

N-Methyl-N-(trimethylsilyl)trifluoroacetamide

synthesis grade

Synonym(s):

N-Trimethylsilyl-N-methyl trifluoroacetamide, MSTFA

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1 EA
CN¥753.18

CN¥753.18

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1 EA
CN¥753.18

About This Item

Linear Formula:
CF3CON(CH3)Si(CH3)3
CAS Number:
24589-78-4
Molecular Weight:
199.25
Beilstein:
1941550
EC Number:
246-331-6
MDL number:
MFCD00000411
UNSPSC Code:
12000000
PubChem Substance ID:
24864622
NACRES:
NA.22

CN¥753.18

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grade

derivatization grade ((GC derivatization))
for 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

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Phenolphthalein indicator ACS,Reag. Ph Eur

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Phenolphthalein

Phenolphthalein Meets ACS Specifications GR ACS

PX0520

Phenolphthalein

Phenolphthalein ACS reagent

105945

Phenolphthalein

Phenolphthalein puriss., meets analytical specification of Ph Eur., BP, 98-101% (calc. to the dried substance)

16019

Phenolphthalein

color

white to yellow-white

color

-

color

-

color

-

form

solid

form

-

form

powder

form

solid

Quality Level

200

Quality Level

-

Quality Level

200

Quality Level

-

λmax

551-554 nm (buffer pH 9.8)

λmax

-

λmax

374 nm (2nd), 552 nm

λmax

-

storage temp.

2-30°C

storage temp.

room temp

storage temp.

room temp

storage temp.

-

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.

related product

Product No.
Description
Pricing

Pictograms

FlameExclamation mark
GHS02,GHS07

Signal Word

Warning

Hazard Statements

H226,H315,H319,H335

Hazard Classifications

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

Target Organs

Respiratory system

Storage Class Code

3 - Flammable liquids

WGK

WGK 3

Flash Point(F)

77.0 °F - closed cup

Flash Point(C)

25 °C - closed cup

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

Regulatory Information

危险化学品

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Certificates of Analysis (COA)

Lot/Batch Number
BCCM7637
BCCL3951
BCCM1869
BCCK4757
BCCK9225

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Tina Kosjek et al.
Environment international, 31(5), 679-685 (2005-05-25)
Pharmacologically active substances used to treat human and animal illnesses can enter the aquatic environment via effluents from wastewater treatment plants or in the case of veterinary drugs directly through liquid manure discharge. Some of these substances enter the environment
Stina K Lien et al.
Journal of chromatography. A, 1247, 118-124 (2012-06-15)
GC-MS analysis of silylated metabolites is a sensitive method that covers important metabolite groups such as sugars, amino acids and non-amino organic acids, and it has become one of the most important analytical methods for exploring the metabolome. Absolute quantitative
Iria González-Mariño et al.
Journal of chromatography. A, 1217(11), 1748-1760 (2010-02-13)
An alternative method for the sensitive determination of several drugs of abuse and some of their metabolites in surface and sewage water samples is proposed. Analytes are concentrated using a solid-phase extraction (SPE) sorbent, converted into the corresponding trimethylsilyl derivatives
Hee-Kyung Jeon et al.
Journal of chromatography. A, 1131(1-2), 192-202 (2006-08-08)
A novel method has been developed to simultaneously determine and quantify seven organic UV filters employing liquid (solid)-liquid extraction, derivatization with N-methyl-N-(trimethylsilyl) trifluoroacetamide (MSTFA) and gas chromatography with mass spectrometric detection in various environmental matrices. The UV filters determined were:
L Damasceno et al.
Journal of mass spectrometry : JMS, 35(11), 1285-1294 (2000-12-13)
An evaluation of derivatization procedures for the detection of beta(2)-agonists is presented. The study was performed with the beta(2)-agonists bambuterol, clenbuterol, fenoterol, formoterol, salbutamol, salmeterol and terbutaline. Different derivatizating agents were employed, aiming to obtain derivatives with high selectivity to
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