If this product has an expiration or retest date, it will be shown on the Certificate of Analysis (COA, CofA). If there is no retest or expiration date listed on the product's COA, we do not have suitable stability data to determine a shelf life. For these products, the only date on the COA will be the release date; a retest, expiration, or use-by-date will not be displayed.
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For more information, please refer to the Product Dating Information document: https://www.sigmaaldrich.com/deepweb/assets/sigmaaldrich/marketing/global/documents/418/501/product-dating-information-06-25-mk.pdf
155195
N,O-bis(trimetilsilil)trifluoroacetamida
≥99%
Sinónimos:
BSTFA
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Fórmula lineal:
CF3C[=NSi(CH3)3]OSi(CH3)3
Número CAS:
Peso molecular:
257.40
UNSPSC Code:
12352111
NACRES:
NA.22
PubChem Substance ID:
EC Number:
247-103-9
Beilstein/REAXYS Number:
2050024
MDL number:
Assay:
≥99%
Form:
liquid
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synthesis grade
Quality Level
assay
≥99%
form
liquid
refractive index
n20/D 1.384 (lit.)
bp
45-50 °C/14 mmHg (lit.)
density
0.969 g/mL at 25 °C (lit.)
functional group
fluoro
SMILES string
C[Si](C)(C)O\C(=N\[Si](C)(C)C)C(F)(F)F
InChI
1S/C8H18F3NOSi2/c1-14(2,3)12-7(8(9,10)11)13-15(4,5)6/h1-6H3/b12-7+
InChI key
XCOBLONWWXQEBS-KPKJPENVSA-N
General description
La N,O-bis(trimetilsilil)trifluoroacetamida es un reactivo organosilicio para trimetilsililación, desprotección, deshidrogenación, alquilación alílica, formación de nitronato y reordenamiento de Claisen.
BSTFA es un agente de sililación utilizado en la síntesis de 4-quinolonas.
BSTFA es un agente de sililación utilizado en la síntesis de 4-quinolonas.
Application
La N,O-bis(trimetilsilil)trifluoroacetamida puede utilizarse como reactivo de derivatización para la determinación de los estrógenos estrona y 17α-etinilestradiol por cromatografía de gases-espectrometría de masas.
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Este artículo | |||
|---|---|---|---|
| assay ≥99% | assay ≥99.0% (GC) | assay ≥97.5% (excluding TMCS, GC), 98% (excluding TMCS) | assay - |
| Quality Level 200 | Quality Level 100 | Quality Level 100 | Quality Level 100 |
| density 0.969 g/mL at 25 °C (lit.) | density 0.969 g/mL at 25 °C (lit.) | density 0.97 g/mL (lit.) | density 0.97 g/mL (lit.) |
| bp 45-50 °C/14 mmHg (lit.) | bp 45-50 °C/14 mmHg (lit.) | bp 45-50 °C/14 mmHg (lit.) | bp 45-50 °C/14 mmHg (lit.) |
| refractive index n20/D 1.384 (lit.) | refractive index n20/D 1.384 | refractive index n20/D 1.384 (lit.) | refractive index n20/D 1.384 (lit.) |
| form liquid | form liquid | form liquid | form - |
signalword
Warning
hcodes
Hazard Classifications
Eye Irrit. 2 - Flam. Liq. 3 - Skin Irrit. 2
Clase de almacenamiento
3 - Flammable liquids
wgk
WGK 3
flash_point_f
93.2 °F
flash_point_c
34 °C
ppe
Faceshields, Gloves, Goggles, type ABEK (EN14387) respirator filter
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Encuentre la documentación para los productos que ha comprado recientemente en la Biblioteca de documentos.
Synthesis of 4-Quinolones: N, O-Bis (trimethylsilyl) acetamide-Mediated Cyclization with Cleavage of Aromatic C--O Bond
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European Journal of Organic Chemistry, 2016, 2336-2350 (2016)
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
E Teixidó et al.
Journal of chromatography. A, 1135(1), 85-90 (2006-10-03)
A new, simple and selective method for the analysis of 5-hydroxymethylfurfural (HMF) in foods by gas chromatography coupled to mass spectrometry (GC-MS) is proposed. Several derivatising procedures based on the formation of an HMF silylated derivative using different reagents were
Número de artículo de comercio global
| SKU | GTIN |
|---|---|
| 155195-500G | 04061833498675 |
| 155195-100G | 04061837789441 |
| 155195-25G | 04061838741950 |
| 155195-5G | 04061837789458 |
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