Accéder au contenu
Merck
Toutes les photos(1)

Key Documents

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


About This Item

Formule linéaire :
(CH3)4N(Br)
Numéro CAS:
Poids moléculaire :
154.05
Numéro Beilstein :
3620955
Numéro CE :
Numéro MDL:
Code UNSPSC :
12000000
ID de substance PubChem :
Nomenclature NACRES :
NB.21

Description

cationic

Niveau de qualité

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

Mention d'avertissement

Danger

Mentions de danger

Conseils de prudence

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

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.

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

A strategy for changing plasma pralidoxime kinetics and, perhaps, effect in organophosphorus insecticide poisoning.
Michael Eddleston et al.
Critical care medicine, 39(4), 908-909 (2011-05-27)
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
L Lemée et al.
Bioresource technology, 117, 234-241 (2012-05-24)
Lignocellulosic biomass was submitted to a biological pretreatment prior to a catalytic hydroliquefaction in order to produce biofuel. The biodegradation process was conducted over 3 months in a reactor under controlled conditions. During the biodegradation process the organic matter was
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
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

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