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426318

Sigma-Aldrich

Tetramethylammonium hydroxide solution

ACS reagent

Synonym(s):

N,N,N-trimethyl-methanaminium hydroxide, TMAH, TMAOH

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About This Item

Linear Formula:
(CH3)4N(OH)
CAS Number:
75-59-2
Molecular Weight:
91.15
Beilstein:
3558708
MDL number:
MFCD00008280
UNSPSC Code:
12352100
PubChem Substance ID:
24866695
NACRES:
NA.21

grade

ACS reagent

Quality Level

200

form

liquid

concentration

1.0 M±0.02 M in H2O

ign. residue

≤5 ppm

color

APHA: ≤10

refractive index

n20/D 1.3497

bp

100 °C

density

1.005 g/mL at 25 °C

anion traces

chloride (Cl-): ≤0.03%

cation traces

K: ≤2 ppm
Na: ≤2 ppm

functional group

amine

SMILES string

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

InChI

1S/C4H12N.H2O/c1-5(2,3)4;/h1-4H3;1H2/q+1;/p-1

InChI key

WGTYBPLFGIVFAS-UHFFFAOYSA-M

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Application

Tetramethylammonium hydroxide solution can be used as:
  • A reagent in the organocatalyzed photoinduced Birch reduction of arenes to 1,4-cyclohexadienes.
  • A catalyst to synthesize 1,2-dihydro-1-arylnaphtho-oxazine-3-one derivatives via one-pot three-component condensation reaction of 2-naphthol, aromatic aldehydes, and urea.
  • A peptizing agent for magnetite nanoparticles to promote repulsive stabilization forces.
  • A template in the hydrothermal synthesis of hierarchical zeolite T aggregates with different sizes.

Signal Word

Danger

Hazard Classifications

Acute Tox. 3 Dermal - Acute Tox. 3 Oral - Aquatic Chronic 3 - Eye Dam. 1 - Skin Corr. 1B - STOT RE 2 Dermal - STOT SE 2

Target Organs

Central nervous system, Liver,thymus

Storage Class Code

6.1C - Combustible acute toxic Cat.3 / toxic compounds or compounds which causing chronic effects

WGK

WGK 3

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

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Certificates of Analysis (COA)

Lot/Batch Number
MKCW5220
MKCV2454
MKCS1253
MKCQ2224
MKCN0479

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Tetraethylammonium hydroxide solution ~1.0 M (CH3CH2)4NOH in H2O, electrochemical grade

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Tetraethylammonium hydroxide solution

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
Qin Chen et al.
Bioresource technology, 117, 186-192 (2012-05-23)
The aim of this study was to explore the synergies of laccase, a ligninolytic enzyme, with cellulose and hemicellulase amendments on ensiled corn stover. Molecular signals of lignin decomposition were observed by tetramethylammonium hydroxide thermochemolysis and gas chromatography-mass spectroscopy (TMAH-GC-MS)
Hui Chong et al.
Langmuir : the ACS journal of surfaces and colloids, 28(4), 2091-2098 (2011-11-08)
A new water-soluble conjugated polymer containing fluorene and boron-dipyrromethene repeat units in the backbones (PBF) that exhibits red emission was synthesized and characterized. Cationic PBF forms uniform nanoparticles with negatively charged disodium salt 3,3'-dithiodipropionic acid (SDPA) in aqueous solution through
Marta Matvienko et al.
PloS one, 8(2), e55913-e55913 (2013-02-15)
Several applications of high throughput genome and transcriptome sequencing would benefit from a reduction of the high-copy-number sequences in the libraries being sequenced and analyzed, particularly when applied to species with large genomes. We adapted and analyzed the consequences of
Konrad Rykaczewski et al.
Langmuir : the ACS journal of surfaces and colloids, 29(3), 881-891 (2012-12-25)
The prospect of enhancing the condensation rate by decreasing the maximum drop departure diameter significantly below the capillary length through spontaneous drop motion has generated significant interest in condensation on superhydrophobic surfaces (SHS). The mobile coalescence leading to spontaneous drop
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