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Merck

87708

Bromure de tétraméthylammonium

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

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A propos de cet article

Formule linéaire :
(CH3)4N(Br)
Numéro CAS:
64-20-0
Poids moléculaire :
154.05
UNSPSC Code:
23151817
NACRES:
NB.21
PubChem Substance ID:
329769598
EC Number:
200-581-2
Beilstein/REAXYS Number:
3620955
MDL number:
MFCD00011626
Assay:
≥99.0% (AT)
Form:
crystals

Principaux documents

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InChI key

DDFYFBUWEBINLX-UHFFFAOYSA-M

InChI

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

SMILES string

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

description

cationic

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

Quality Level

100

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Catégories apparentées

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).



Other Notes

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

Classe de stockage

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

wgk

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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Certificats d'analyse (COA)

Lot/Batch Number
BCBP4666V

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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
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
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)
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
Valentina Becerra et al.
Journal of chromatography. A, 1275, 70-77 (2013-01-12)
This article analyses the interferences in the quantification of traces of bisphenol S in paper by applying the direct analytical method "analytical pyrolysis gas chromatography mass spectrometry" (Py-GC/MS) in conjunction with on-line derivatisation with tetramethylammonium hydroxide (TMAH). As the analytes
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