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Merck

T6381

N,O-Bis(trimethylsilyl)trifluoroacetamide with trimethylchlorosilane

with 1% trimethylchlorosilane, derivatization grade (GC derivatization), LiChropur™

Synonym(s):

BSTFA + TMCS

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About This Item

Linear Formula:
CF3C[=NSi(CH3)3]OSi(CH3)3
CAS Number:
25561-30-2
Molecular Weight:
257.40
UNSPSC Code:
23151817
NACRES:
NA.22
PubChem Substance ID:
24900370
MDL number:
MFCD00008269
Beilstein/REAXYS Number:
2050024

Key Documents

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SMILES string

C[Si](C)(C)O\C(=N\[Si](C)(C)C)C(F)(F)F

InChI key

XCOBLONWWXQEBS-KPKJPENVSA-N

InChI

1S/C8H18F3NOSi2/c1-14(2,3)12-7(8(9,10)11)13-15(4,5)6/h1-6H3/b12-7+

grade

derivatization grade (GC derivatization)

quality

LiChropur™, with 1% trimethylchlorosilane

contains

1% trimethylchlorosilane as additive

reaction suitability

reagent type: derivatization reagent
reaction type: Silylations

technique(s)

gas chromatography (GC): suitable

color

hazy clear to colorless

refractive index

n20/D 1.384 (lit.)

bp

45-50 °C/14 mmHg (lit.)

solubility

hexane: miscible 100 mg/mL

density

0.97 g/mL (lit.)

storage temp.

2-8°C

Quality Level

100

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General description

N,O-Bis(trimethylsilyl)trifluoroacetamide with trimethylchlorosilane is a silylating reagent generally used in estrogenic steroid hormone identification and quantification.

Application

BSTFA+TMCS has been used as derivatizing reagent for GC-MS determination of natural and synthetic estrogenic steroids.

Packaging

Clear borosilicate glass, high hydrolytic resistance (Type I)
Sealed ampules contain 1 ml. Gram sizes are in screw-cap bottles.

Other Notes

The position of the silyl groups has not been unequivocally established. It has been referred to as both N,N and N,O.

Legal Information

LiChropur is a trademark of Merck KGaA, Darmstadt, Germany

pictograms

FlameExclamation mark
GHS02,GHS07

signalword

Danger

Hazard Classifications

Eye Irrit. 2 - Flam. Liq. 2 - Skin Irrit. 2

Storage Class

3 - Flammable liquids

wgk

WGK 3

flash_point_f

44.1 °F - closed cup

flash_point_c

6.7 °C - closed cup

ppe

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

Regulatory Listings

Regulatory Listings are mainly provided for chemical products. Only limited information can be provided here for non-chemical products. No entry means none of the components are listed. It is the user’s obligation to ensure the safe and legal use of the product.

Group 4: Flammable liquids + Type 1 petroleums + Hazardous rank II + Water insoluble liquid

fsl

Substances Subject to be Indicated Names

ishl_indicated

Substances Subject to be Notified Names

ishl_notified

T6381-1AMP: + T6381-VAR: + T6381-5G: + T6381-10AMP: + T6381-100G: + T6381-BULK: + T6381-25G: + T6381-1AMP-KC:

jan

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Certificates of Analysis (COA)

Lot/Batch Number
0000433390
0000433390
0000425018
0000425018
BCCN1028

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Pitfalls and solution for simultaneous determination of estrone and 17a-ethinylestradiol by gas chromatography?mass spectrometry after derivatization with N, O-bis (trimethylsilyl) trifluoroacetamide.
Zhang, Kai, and Yuegang Zuo.
Analytica Chimica Acta, 554.1, 190-196 (2005)
Shabtai Cohen et al.
Plants (Basel, Switzerland), 9(9) (2020-08-23)
Emerging needs for diversifying human diet and to explore novel therapeutic procedures have led to increasing attempts to retrieve traditional nourishments and recruit beneficial wild plant species. Species of the genus Erodium (Geraniaceae) harbor medicinal indications and substances known from
Hidenori Matsukami et al.
The Science of the total environment, 493, 672-681 (2014-07-06)
Chlorinated and non-halogenated organophosphorus flame retardants (OPFRs) including tris(2-chloroisopropyl) phosphate (TCIPP), diethylene glycol bis(di(2-chloroisopropyl) phosphate) (DEG-BDCIPP), triphenyl phosphate (TPHP), and bisphenol A bis(diphenyl phosphate) (BPA-BDPP) have been used increasingly as alternatives to polybrominated diphenyl ethers and other brominated flame retardants.
Ahmed I Rushdi et al.
SpringerPlus, 3, 253-253 (2014-06-14)
Propolis is a sticky material mixed by honeybees to utilize it in protecting their hives from infection by bacteria and fungi. The therapeutic properties of propolis are due to its chemical composition with bio-active compounds; therefore, researchers are interested in
Nyi Nyi Naing et al.
Journal of chromatography. A, 1423, 1-8 (2015-11-05)
Electro membrane extraction-solid-liquid phase microextraction (EME-SLPME) was developed for the first time to determine phenolic contaminants in water. The extraction system consisted of a solid/liquid interface that permitted a three-phase microextraction approach involving an aqueous sample (donor phase): an organic
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