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Documentos

87708

Supelco

Tetramethylammonium bromide

suitable for ion pair chromatography, LiChropur™, ≥99.0% (AT)

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About This Item

Fórmula lineal:
(CH3)4N(Br)
Número de CAS:
64-20-0
Peso molecular:
154.05
Beilstein:
3620955
Número CE:
200-581-2
Número MDL:
MFCD00011626
Código UNSPSC:
12000000
ID de la sustancia en PubChem:
329769598
NACRES:
NB.21

descripción

cationic

Nivel de calidad

100

Análisis

≥99.0% (AT)

formulario

crystals

calidad

LiChropur™

técnicas

ion pair chromatography: suitable

mp

>300 °C (lit.)

λ

10 % in H2O

Absorción UV

λ: 240 nm Amax: 0.06
λ: 250 nm Amax: 0.03
λ: 260 nm Amax: 0.02
λ: 500 nm Amax: 0.02

idoneidad

corresponds to standard for filter test

cadena SMILES

[Br-].C[N+](C)(C)C

InChI

1S/C4H12N.BrH/c1-5(2,3)4;/h1-4H3;1H/q+1;/p-1

Clave InChI

DDFYFBUWEBINLX-UHFFFAOYSA-M

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Descripción general

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:

Aplicación


  • 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).



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Información legal

LiChropur is a trademark of Merck KGaA, Darmstadt, Germany

Pictogramas

Skull and crossbones
GHS06

Palabra de señalización

Danger

Frases de peligro

H300

Consejos de prudencia

P301 + P330 + P331 + P310

Clasificaciones de peligro

Acute Tox. 2 Oral

Código de clase de almacenamiento

6.1A - Combustible acute toxic Cat. 1 and 2 / very toxic hazardous materials

Clase de riesgo para el agua (WGK)

WGK 3

Punto de inflamabilidad (°F)

Not applicable

Punto de inflamabilidad (°C)

Not applicable

Equipo de protección personal

Eyeshields, Faceshields, Gloves, type P2 (EN 143) respirator cartridges

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Certificados de análisis (COA)

Lot/Batch Number
BCBP4666V
BCBP4666V
1375774V
1375774
1114053

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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
Qin Chen et al.
Bioresource technology, 117, 186-192 (2012-05-23)
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
Hui Chong et al.
Langmuir : the ACS journal of surfaces and colloids, 28(4), 2091-2098 (2011-11-08)
A new water-soluble conjugated polymer containing fluorene and boron-dipyrromethene repeat units in the backbones (PBF) that exhibits red emission was synthesized and characterized. Cationic PBF forms uniform nanoparticles with negatively charged disodium salt 3,3'-dithiodipropionic acid (SDPA) in aqueous solution through
Man Xu et al.
Environmental science & technology, 47(1), 110-118 (2012-06-12)
Elucidating dissolution kinetics and mechanisms at carbonate mineral-water interfaces is essential to many environmental and geochemical processes, including geologic CO(2) sequestration in deep aquifers. In the present work, effects of background electrolytes on dolomite (CaMg(CO(3))(2)) reactivity were investigated by measuring
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