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87708

Supelco

Tetramethylammonium bromide

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

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About This Item

Formula condensata:
(CH3)4N(Br)
Numero CAS:
64-20-0
Peso molecolare:
154.05
Beilstein:
3620955
Numero CE:
200-581-2
Numero MDL:
MFCD00011626
Codice UNSPSC:
12000000
ID PubChem:
329769598
NACRES:
NB.21

Descrizione

cationic

Livello qualitativo

100

Saggio

≥99.0% (AT)

Forma fisica

crystals

Qualità

LiChropur™

tecniche

ion pair chromatography: suitable

Punto di fusione

>300 °C (lit.)

λ

10 % in H2O

Assorbanza 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

Compatibilità

corresponds to standard for filter test

Stringa SMILE

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

InChI

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

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Descrizione generale

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:

Applicazioni


  • 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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Note legali

LiChropur is a trademark of Merck KGaA, Darmstadt, Germany

Pittogrammi

Skull and crossbones
GHS06

Avvertenze

Danger

Indicazioni di pericolo

H300

Consigli di prudenza

P301 + P330 + P331 + P310

Classi di pericolo

Acute Tox. 2 Oral

Codice della classe di stoccaggio

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

Classe di pericolosità dell'acqua (WGK)

WGK 3

Punto d’infiammabilità (°F)

Not applicable

Punto d’infiammabilità (°C)

Not applicable

Dispositivi di protezione individuale

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

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Certificati d'analisi (COA)

Lot/Batch Number
BCBP4666V
1375774V
1375774
1114053
017135/1

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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
Marta Matvienko et al.
PloS one, 8(2), e55913-e55913 (2013-02-15)
Several applications of high throughput genome and transcriptome sequencing would benefit from a reduction of the high-copy-number sequences in the libraries being sequenced and analyzed, particularly when applied to species with large genomes. We adapted and analyzed the consequences of
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
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
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
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