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Merck
CN

86608

Tetraethylammonium bromide

suitable for ion pair chromatography, LiChropur™, ≥99.0%

Synonym(s):

TEA bromide

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About This Item

Linear Formula:
(C2H5)4N(Br)
CAS Number:
71-91-0
Molecular Weight:
210.16
UNSPSC Code:
41121813
NACRES:
NB.21
PubChem Substance ID:
329769472
EC Number:
200-769-4
Beilstein/REAXYS Number:
3563430
MDL number:
MFCD00011825
Assay:
≥99.0% (AT), ≥99.0%
Technique(s):
ion pair chromatography: suitable

Key Documents

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Quality Level

100

InChI key

HWCKGOZZJDHMNC-UHFFFAOYSA-M

InChI

1S/C8H20N.BrH/c1-5-9(6-2,7-3)8-4;/h5-8H2,1-4H3;1H/q+1;/p-1

SMILES string

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

description

cationic

assay

≥99.0% (AT), ≥99.0%

form

crystals

quality

LiChropur™

technique(s)

ion pair chromatography: suitable

mp

285 °C (dec.) (lit.)

λ

10 % in H2O

UV absorption

λ: 240 nm Amax: 0.04, 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

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General description

The use of ion-pairing reagents as mobile phase additives allows the separation of ionic and highly polar substances on reversed phase HPLC columns. The purity of mobile phase additives is of utmost importance to their successful application. Sigma-Aldrich offers an outstanding range of tailor-made reagents for anionic (quaternary ammonium and phosphonium salts) and cationic (alkanesulfonates) determination. All mobile phase additives are subject to rigorous testing with special emphasis on the requirements of modern reversed phase HPLC:

Other Notes

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

Legal Information

LiChropur is a trademark of Merck KGaA, Darmstadt, Germany

hcodes

H412

Hazard Classifications

Aquatic Chronic 3

Storage Class

11 - Combustible Solids

wgk

WGK 3

ppe

dust mask type N95 (US), Eyeshields, Gloves

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Certificates of Analysis (COA)

Lot/Batch Number
BCBR6501V

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Min Shen et al.
Vascular pharmacology, 58(1-2), 64-70 (2012-07-24)
Evidence has indicated that resveratrol (Res) produces vasorelaxation and may decrease the coronary heart disease mortality. However, several pathways involved in the mechanism of vasorelaxation are still unclear. This study was designed, therefore, to test the probable ion channels or
Guillermo J Pérez et al.
American journal of physiology. Cell physiology, 304(3), C280-C286 (2012-12-01)
We studied principal neurons from canine intracardiac (IC) ganglia to determine whether large-conductance calcium-activated potassium (BK) channels play a role in their excitability. We performed whole cell recordings in voltage- and current-clamp modes to measure ion currents and changes in
Gonzalo Budelli et al.
Proceedings of the National Academy of Sciences of the United States of America, 110(41), 16657-16662 (2013-09-27)
High-conductance Ca(2+)- and voltage-activated K(+) (Slo1 or BK) channels (KCNMA1) play key roles in many physiological processes. The structure of the Slo1 channel has two functional domains, a core consisting of four voltage sensors controlling an ion-conducting pore, and a
Vivek Garg et al.
The Journal of general physiology, 140(3), 307-324 (2012-08-30)
Ether-à-go-go (EAG) and EAG-related gene (ERG) K(+) channels are close homologues but differ markedly in their gating properties. ERG1 channels are characterized by rapid and extensive C-type inactivation, whereas mammalian EAG1 channels were previously considered noninactivating. Here, we show that
Jayabalan Nirmal et al.
Experimental eye research, 116, 27-35 (2013-07-31)
The present study was conducted to test the hypothesis; OCT may be active from blood-to-vitreous for the uptake of its substrates. Ocular uptake of Tetraethylammonium (TEA) across blood ocular barriers and the tissue distribution was evaluated in vivo in New
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