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Sigma-Aldrich

Methyltrifluormethansulfonat

≥98%

Synonym(e):

Methyltriflat

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About This Item

Lineare Formel:
CF3SO2OCH3
CAS-Nummer:
333-27-7
Molekulargewicht:
164.10
Beilstein:
774772
EG-Nummer:
206-371-7
MDL-Nummer:
MFCD00000409
UNSPSC-Code:
12352108
PubChem Substanz-ID:
24850067
NACRES:
NA.22
Preise und Verfügbarkeit sind derzeit nicht verfügbar.

Qualitätsniveau

200

Assay

≥98%

Form

liquid

Brechungsindex

n20/D 1.326 (lit.)

bp

94-99 °C (lit.)

Dichte

1.45 g/mL at 25 °C (lit.)

Funktionelle Gruppe

fluoro
triflate

Lagertemp.

2-8°C

SMILES String

COS(=O)(=O)C(F)(F)F

InChI

1S/C2H3F3O3S/c1-8-9(6,7)2(3,4)5/h1H3

InChIKey

OIRDBPQYVWXNSJ-UHFFFAOYSA-N

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Allgemeine Beschreibung

Methyltrifluormethansulfonat ist ein starkes Methylierungsreagenz,[1] das üblicherweise für die Vormethylierung von Polysacchariden unter milden basischen Bedingungen verwendet wird.[2]

Anwendung

Methyltrifluormethansulfonat kann verwendet werden als Methylierungsreagenz:
  • Bei der Bestimmung von Polysulfiden, nullwertigem Schwefel in sulfidreichen Wasserbrunnen[3] und Polysulfid-Spezies im Elektrolyten einer Lithium-Schwefel-Batterie[4] mittels chromatographischer Verfahren.
  • Bei Reaktionen mit Kaliumenolaten.[5]
  • Für die Umwandlung von Aminen in Methylammoniumtriflate.[6][7]

Zubehör

Produkt-Nr.
Beschreibung
Preisangaben

Signalwort

Danger

Gefahreneinstufungen

Acute Tox. 1 Inhalation - Acute Tox. 3 Dermal - Acute Tox. 3 Oral - Eye Dam. 1 - Flam. Liq. 3 - Skin Corr. 1B

Lagerklassenschlüssel

3 - Flammable liquids

WGK

WGK 3

Flammpunkt (°F)

100.4 °F - closed cup

Flammpunkt (°C)

38 °C - closed cup

Persönliche Schutzausrüstung

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

Hier finden Sie alle aktuellen Versionen:

Analysenzertifikate (COA)

Lot/Batch Number
MKCV3673
MKCV6217
MKCW5741
MKCV2467
MKCV2837

Die passende Version wird nicht angezeigt?

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In der Dokumentenbibliothek finden Sie die Dokumentation zu den Produkten, die Sie kürzlich erworben haben.

Die Dokumentenbibliothek aufrufen

Oliver Schuster et al.
Inorganic chemistry, 45(20), 7997-7999 (2006-09-27)
Two cationic carbene complexes with no heteroatom in the ring containing the carbene carbon, trans-bromo(2-methyl-2,6-dihydroisoquinolin-6-ylidene)bis(triphenylphosphine)palladium(II) triflate (3) and trans-chloro(1,2-dimethyl-1,7-dihydroquinolin-7-ylidene)bis(triphenylphosphine)palladium(II) triflate (4), were synthesized by oxidative substitution of Pd(PPh3)4 with N-methylated 6-bromoisoquinolinium and 7-chloro-2-methylquinolinium cations, respectively. Compound 3 was also prepared
Quantitative and Qualitative Determination of Polysulfide Species in the Electrolyte of a Lithium?Sulfur Battery using HPLC ESI/MS with One?Step Derivatization
Zheng D, et al.
Advanced Energy Materials, 5(16) (2015)
Ring Expansions of 2-Alkenylazetidinium Salts-a New Route to Pyrrolidines and Azepanes
Couty F, et al.
European Journal of Organic Chemistry, 2006(18), 4214-4223 (2006)
Synthesis, structure, and reactivity of a stabilized phosphiranylium salt.
Helen Jansen et al.
Angewandte Chemie (International ed. in English), 49(32), 5485-5488 (2010-07-06)
C Thominiaux et al.
Applied radiation and isotopes : including data, instrumentation and methods for use in agriculture, industry and medicine, 64(5), 570-573 (2006-01-24)
Recently, the pyrazolopyrimidine, [11C] N,N-Diethyl-2-[2-(4-methoxyphenyl)-5,7-dimethylpyrazolo[1,5-a]pyrimidin-3-yl]acetamide (DPA-713) has been reported as a new promising marker for the study of peripheral benzodiazepine receptors with positron emission tomography. In the present study, DPA-713 has been labelled from the corresponding nor-analogue using [11C]methyl triflate
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Questions

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  1. How is shipping temperature determined? And how is it related to the product storage temperature?

    1 answer

    1. Products may be shipped at a different temperature than the recommended long-term storage temperature. If the product quality is sensitive to short-term exposure to conditions other than the recommended long-term storage, it will be shipped on wet or dry-ice. If the product quality is NOT affected by short-term exposure to conditions other than the recommended long-term storage, it will be shipped at ambient temperature. As shipping routes are configured for minimum transit times, shipping at ambient temperature helps control shipping costs for our customers. For more information, please refer to the Storage and Transport Conditions document: https://www.sigmaaldrich.com/deepweb/assets/sigmaaldrich/marketing/global/documents/316/622/storage-transport-conditions-mk.pdf

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  2. How can I determine the shelf life / expiration / retest date of this product?

    1 answer

    1. 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.
      For all products, we recommend handling per defined conditions as printed in our product literature and website product descriptions. We recommend that products should be routinely inspected by customers to ensure they perform as expected.
      For products without retest or expiration dates, our standard warranty of 1 year from the date of shipment is applicable.
      For more information, please refer to the Product Dating Information document: https://www.sigmaaldrich.com/deepweb/assets/sigmaaldrich/marketing/global/documents/449/386/product-dating-information-mk.pdf

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