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
90520
Triethyloxonium tetrafluoroborate
≥97.0% (T)
Synonym(s):
Et3OBF4, Meerwein′s reagent, Triethyloxonium fluoroborate
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About This Item
Recommended Products
Quality Level
assay
≥97.0% (T)
form
crystals
contains
1-3% ether as stabilizer
solubility
methylene chloride: 20 mg/mL, clear, colorless
functional group
ether
storage temp.
2-8°C
SMILES string
F[B-](F)(F)F.CC[O+](CC)CC
InChI
1S/C6H15O.BF4/c1-4-7(5-2)6-3;2-1(3,4)5/h4-6H2,1-3H3;/q+1;-1
InChI key
IYDQMLLDOVRSJJ-UHFFFAOYSA-N
Application
- To prepare amino esters by reacting with lactams followed by hydrolysis.[1]
- In the preparation of substituted imidazolines from aziridines and nitriles via [3+2]-cycloaddition reaction.[2]
- For the N-alkylation of a series of N-arylsulfonyl-α-amino acid methyl esters having variable substituents at 4th position of the sulfonamide aromatic ring.[3]
signalword
Danger
hcodes
Hazard Classifications
Eye Dam. 1 - Skin Corr. 1B
supp_hazards
Storage Class
8A - Combustible, corrosive hazardous materials
wgk_germany
WGK 3
flash_point_f
Not applicable
flash_point_c
Not applicable
ppe
Eyeshields, Faceshields, Gloves, type P3 (EN 143) respirator cartridges
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How is shipping temperature determined? And how is it related to the product storage temperature?
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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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