Accéder au contenu
Merck
Toutes les photos(1)

Key Documents

View All Documentation

87708

Supelco

Bromure de tétraméthylammonium

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

Se connecterpour consulter vos tarifs contractuels et ceux de votre entreprise/organisme
Toutes les photos(1)

About This Item

Formule linéaire :
(CH3)4N(Br)
Numéro CAS:
64-20-0
Poids moléculaire :
154.05
Numéro Beilstein :
3620955
Numéro CE :
200-581-2
Numéro MDL:
MFCD00011626
Code UNSPSC :
12000000
ID de substance PubChem :
329769598
Nomenclature NACRES :
NB.21

Description

cationic

Niveau de qualité

100

Pureté

≥99.0% (AT)

Forme

crystals

Qualité

LiChropur™

Technique(s)

ion pair chromatography: suitable

Pf

>300 °C (lit.)

λ

10 % in H2O

Absorption 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

Adéquation

corresponds to standard for filter test

Chaîne SMILES 

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

InChI

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

Clé InChI

DDFYFBUWEBINLX-UHFFFAOYSA-M

Vous recherchez des produits similaires ? Visite Guide de comparaison des produits

Description générale

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:

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).



Produits recommandés

Discover LiChropur™ reagents ideal for HPLC or LC-MS analysis

Informations légales

LiChropur is a trademark of Merck KGaA, Darmstadt, Germany

Pictogrammes

Skull and crossbones
GHS06

Mention d'avertissement

Danger

Mentions de danger

H300

Conseils de prudence

P301 + P330 + P331 + P310

Classification des risques

Acute Tox. 2 Oral

Code de la classe de stockage

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

Classe de danger pour l'eau (WGK)

WGK 3

Point d'éclair (°F)

Not applicable

Point d'éclair (°C)

Not applicable

Équipement de protection individuelle

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

Faites votre choix parmi les versions les plus récentes :

Certificats d'analyse (COA)

Lot/Batch Number
BCBP4666V
BCBP4666V
1375774V
1375774
1114053

Vous ne trouvez pas la bonne version ?

Si vous avez besoin d'une version particulière, vous pouvez rechercher un certificat spécifique par le numéro de lot.

Rechercher un(e) COA

Déjà en possession de ce produit ?

Retrouvez la documentation relative aux produits que vous avez récemment achetés dans la Bibliothèque de documents.

Consulter la Bibliothèque de documents

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
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
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)
Aleksandr Saghyan et al.
Journal of neuroscience methods, 205(1), 110-118 (2012-01-11)
Numerous brain structures are composed of distinct layers and such stratification has a profound effect on extracellular diffusion transport in these structures. We have derived a more general form of diffusion equation incorporating inhomogeneities in both the extracellular volume fraction
Afficher tous les articles scientifiques apparentés

Notre équipe de scientifiques dispose d'une expérience dans tous les secteurs de la recherche, notamment en sciences de la vie, science des matériaux, synthèse chimique, chromatographie, analyse et dans de nombreux autres domaines..

Contacter notre Service technique