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Merck

87708

Tetramethylammonium bromide

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

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About This Item

Linear Formula:
(CH3)4N(Br)
CAS Number:
64-20-0
Molecular Weight:
154.05
UNSPSC Code:
23151817
NACRES:
NB.21
PubChem Substance ID:
329769598
EC Number:
200-581-2
Beilstein/REAXYS Number:
3620955
MDL number:
MFCD00011626

Key Documents

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Product Name

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

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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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).



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:

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

Storage Class

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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Certificates of Analysis (COA)

Lot/Batch Number
BCBP4666V

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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
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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
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