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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/REAXYS Number:
3620955
EC Number:
200-581-2
MDL number:
MFCD00011626
UNSPSC Code:
12000000
PubChem Substance ID:
329769598
NACRES:
NB.21
form:
crystals
assay:
≥99.0% (AT)

description

cationic

Quality Level

100

assay

≥99.0% (AT)

form

crystals

quality

LiChropur™

technique(s)

ion pair chromatography: suitable

mp

>300 °C (lit.)

λ

10 % in H2O

UV absorption

λ: 240 nm Amax: 0.06
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

SMILES string

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

InChI

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

InChI key

DDFYFBUWEBINLX-UHFFFAOYSA-M

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General description

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).



Recommended products

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

Legal Information

LiChropur is a trademark of Merck KGaA, Darmstadt, Germany

pictograms

Skull and crossbones
GHS06

signalword

Danger

hcodes

H300

Hazard Classifications

Acute Tox. 2 Oral

Storage Class

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

wgk_germany

WGK 3

flash_point_f

Not applicable

flash_point_c

Not applicable

ppe

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

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Certificados de análisis (COA)

Lot/Batch Number
BCBP4666V

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Chen-Long Wu et al.
Burns : journal of the International Society for Burn Injuries, 38(7), 1051-1057 (2012-06-16)
To evaluate the role of the chemical burns caused by hydroxide ion in the fatal effects of tetramethylammonium ion (TMA) in dermal exposure to tetramethylammonium hydroxide (TMAH), we conducted a rat study consisting of two-step treatments with dermal exposure to
M R Faria et al.
International journal of pharmaceutics, 446(1-2), 183-190 (2013-02-21)
This work assesses the characteristics of magnetoliposomes of soybean phosphatidylcholine (SPC):cholesterol (Chol) loaded with superparamagnetic iron oxide nanoparticles (IONPs) stabilized with tetramethylammonium hydroxide (TMAOH) and their capacity to enhance magnetic resonance imaging (MRI) contrast. Magnetoliposomes of SPC were used for
N Kodiah Beyeh et al.
Chemistry (Weinheim an der Bergstrasse, Germany), 18(18), 5552-5557 (2012-04-11)
The non-covalent interactions of different upper-rim-substituted C(2)-resorcinarenes with tetramethylammonium salts were analyzed in the gas phase in an Electrospray Ionization Fourier-transform ion-cyclotron-resonance (ESI-FTICR) mass spectrometer and by (1)H NMR titrations. The order of binding strengths of the hosts towards the
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
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