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92605

Sigma-Aldrich

Trimethyloxonium tetrafluoroborate

purum, ≥98.0% (T)

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About This Item

Linear Formula:
(CH3)3O(BF4)
CAS Number:
420-37-1
Molecular Weight:
147.91
Beilstein:
3597303
EC Number:
206-994-4
MDL number:
MFCD00011798
UNSPSC Code:
12352101
PubChem Substance ID:
329770149

grade

purum

Assay

≥98.0% (T)

storage temp.

2-8°C

SMILES string

C[O+](C)C.F[B-](F)(F)F

InChI

1S/C3H9O.BF4/c1-4(2)3;2-1(3,4)5/h1-3H3;/q+1;-1

InChI key

CZVZBKHWOFJNCR-UHFFFAOYSA-N

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Application

A Meerwein salt, strong electrophilic methylating agent

replaced by

Product No.
Description
Pricing

Pictograms

Corrosion
GHS05

Signal Word

Danger

Hazard Statements

H314

Hazard Classifications

Skin Corr. 1B

Supplementary Hazards

EUH014

Storage Class Code

8A - Combustible corrosive hazardous materials

WGK

WGK 3

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

Regulatory Information

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Certificates of Analysis (COA)

Lot/Batch Number
BCCF1809
BCCB5975
BCBZ9649
BCBR5629V
BCBR5185V

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H M Liebich et al.
Journal of chromatography. B, Biomedical sciences and applications, 713(2), 427-432 (1998-09-24)
We developed a new sample preparation method for profiling organic acids in urine by GC or GC-MS. The method includes derivatisation of the organic acids directly in the aqueous urine using trimethyloxonium tetrafluoroborate as a methylating agent, extraction of the
Marco Pacenti et al.
Biomedical chromatography : BMC, 22(10), 1155-1163 (2008-05-29)
A method for the determination of the organic acids directly in the urine employing derivatization with trimethyloxonium tetrafluoroborate as a methylating agent and sequential extraction by head space and direct immersion/solid phase microextraction is reported. Furoic acid, hippuric acid, methylhippuric
H M Liebich et al.
Journal of chromatography. A, 843(1-2), 237-245 (1999-07-10)
Trimethyloxonium tetrafluoroborate (TMO) is applied as derivatising reagent to transform urinary organic acids into their methyl esters. The method is suggested as an alternative to the use of diazomethane which is carcinogenic and explosive. In contrast to other methods avoiding
S Chericoni et al.
Journal of analytical toxicology, 35(4), 193-198 (2011-04-26)
The present work describes the validation of a novel aqueous in situ derivatization procedure with trimethyloxonium tetrafluoroborate (TMO) as methylating agent for the simultaneous, quantitative analysis of Δ(9)-tetrahydrocannabinol (THC) and 11-nor-Δ(9)-tetrahydrocannabinol carboxylic acid (THC-COOH) in human urine. The derivatizing agent
V M Mahnir et al.
Toxicon : official journal of the International Society on Toxinology, 28(11), 1255-1263 (1990-01-01)
The toxin was treated with [14C]trimethyloxonium tetrafluoroborate or [3H]glycine methyl ester in the presence of 1-ethyl-3(3-dimethylaminopropyl) carbodiimide. Esterification of separate carboxyl groups with [14C]trimethyloxonium tetrafluoroborate decreased the toxicity no more than two-fold. Blocking of any single carboxyl group with [3H]glycine

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