87708
四甲基溴化铵
suitable for ion pair chromatography, LiChropur™, ≥99.0% (AT)
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线性分子式:
(CH3)4N(Br)
化学文摘社编号:
分子量:
154.05
UNSPSC Code:
23151817
NACRES:
NB.21
PubChem Substance ID:
EC Number:
200-581-2
Beilstein/REAXYS Number:
3620955
MDL number:
Assay:
≥99.0% (AT)
Form:
crystals
产品名称
四甲基溴化铵, suitable for ion pair chromatography, LiChropur™, ≥99.0% (AT)
InChI key
DDFYFBUWEBINLX-UHFFFAOYSA-M
InChI
1S/C4H12N.BrH/c1-5(2,3)4;/h1-4H3;1H/q+1;/p-1
SMILES string
[Br-].C[N+](C)(C)C
description
cationic
assay
≥99.0% (AT)
form
crystals
quality
LiChropur™
technique(s)
ion pair chromatography: suitable
mp
>300 °C (lit.)
λ
10 % in H2O
UV absorption
λ: 240 nm Amax: 0.06
λ: 250 nm Amax: 0.03
λ: 260 nm Amax: 0.02
λ: 500 nm Amax: 0.02
suitability
corresponds to standard for filter test
Quality Level
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Application
- pH Standardization in Analytical Chemistry: Buffers serve as critical components in the batch-to-batch reproducibility studies for primary pH methods, ensuring high precision in pH measurement across various scientific disciplines, from pharmaceuticals to environmental science (Asakai et al., 2024).
General description
Ion-pairing reagents, when used as mobile phase additives, promote the analysis of ionic and highly polar substances on reversed phase HPLC columns. The purity of mobile phase additives is of highest significance for their effective application. Sigma-Aldrich makes available a variety of tailor-made reagents for anionic (quaternary ammonium and phosphonium salts) and cationic (alkanesulfonates) separations. All mobile phase additives are tested thoroughly with special consideration on the demands of modern reversed phase HPLC:
Legal Information
LiChropur is a trademark of Merck KGaA, Darmstadt, Germany
signalword
Danger
hcodes
Hazard Classifications
Acute Tox. 2 Oral
存储类别
6.1A - Combustible acute toxic Cat. 1 and 2 / very toxic hazardous materials
wgk
WGK 3
flash_point_f
Not applicable
flash_point_c
Not applicable
ppe
Eyeshields, Faceshields, Gloves, type P2 (EN 143) respirator cartridges
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The aim of this study was to explore the synergies of laccase, a ligninolytic enzyme, with cellulose and hemicellulase amendments on ensiled corn stover. Molecular signals of lignin decomposition were observed by tetramethylammonium hydroxide thermochemolysis and gas chromatography-mass spectroscopy (TMAH-GC-MS)
Maggie Tam et al.
The Analyst, 136(15), 3098-3106 (2011-06-24)
A novel analytical method, called Liquid Phase Ion Mobility Spectrometry (LiPIMS) was demonstrated, where aqueous phase analytes were ionized and introduced into non-aqueous liquids, transported by an external electric field from the point of generation to a collection electrode. Ions
Lina Barreto et al.
Eukaryotic cell, 10(9), 1241-1250 (2011-07-05)
Potassium homeostasis is crucial for living cells. In the yeast Saccharomyces cerevisiae, the uptake of potassium is driven by the electrochemical gradient generated by the Pma1 H(+)-ATPase, and this process represents a major consumer of the gradient. We considered that
Konrad Rykaczewski et al.
Langmuir : the ACS journal of surfaces and colloids, 29(3), 881-891 (2012-12-25)
The prospect of enhancing the condensation rate by decreasing the maximum drop departure diameter significantly below the capillary length through spontaneous drop motion has generated significant interest in condensation on superhydrophobic surfaces (SHS). The mobile coalescence leading to spontaneous drop
Yusuke Ide et al.
Chemical communications (Cambridge, England), 48(56), 7073-7075 (2012-06-12)
Hiroshima University Silicate-1 (HUS-1), composed of silicate sheets with a halved sodalite cage and the interlayer tetramethylammonium (TMA) cation in the cage, was modified with dimethyldichlorosilane to form the organic derivative in which a dimethyl group was grafted onto the
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