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86631

Sigma-Aldrich

Tetraethylammonium hydroxide solution

~25% in methanol (~1.5 M)

Synonym(s):

TEA hydroxide

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100 ML
PLN 611.00
500 ML
PLN 1,110.00

PLN 611.00

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100 ML
PLN 611.00
500 ML
PLN 1,110.00

About This Item

Linear Formula:
(C2H5)4N(OH)
CAS Number:
77-98-5
Molecular Weight:
147.26
Beilstein:
3912961
MDL number:
MFCD00009024
UNSPSC Code:
12352100
PubChem Substance ID:
57653059
NACRES:
NA.22

PLN 611.00

Please contact Customer Service for Availability
Request a Bulk Order

form

liquid

Quality Level

100

concentration

~25% in methanol (~1.5 M)

anion traces

sulfate (SO42-): ≤1000 mg/kg

functional group

amine

SMILES string

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

InChI

1S/C8H20N.H2O/c1-5-9(6-2,7-3)8-4;/h5-8H2,1-4H3;1H2/q+1;/p-1

InChI key

LRGJRHZIDJQFCL-UHFFFAOYSA-M

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General description

Tetraethylammonium hydroxide (TEAOH) is a quaternary ammonium salt that is commonly used as a strong base and phase-transfer catalyst in organic synthesis.

Application

Tetraethylammonium hydroxide (25% in methanol) can be used as a base in the synthesis of 2-hydroxyacetophenoxime from 2-hydroxysalicylaldoxime and hydroxylamine hydrochloride. It is also used as an organic structure-directing agent in the synthesis of zeolites such as Beta, ZSM-20, and SAPO-34.

Signal Word

Danger

Hazard Classifications

Acute Tox. 3 Dermal - Acute Tox. 3 Inhalation - Acute Tox. 3 Oral - Eye Dam. 1 - Flam. Liq. 2 - Skin Corr. 1B - STOT SE 1

Target Organs

Eyes,Central nervous system

Storage Class Code

3 - Flammable liquids

WGK

WGK 3

Flash Point(F)

49.5 °F

Flash Point(C)

9.7 °C

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

Regulatory Listings

Regulatory Listings are mainly provided for chemical products. Only limited information can be provided here for non-chemical products. No entry means none of the components are listed. It is the user’s obligation to ensure the safe and legal use of the product.

EU REACH Annex XVII (Restriction List)

CAS No.

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Certificates of Analysis (COA)

Lot/Batch Number
BCCH9178
BCCH2080
BCCF8259
BCBR5182V
BCBG8033V

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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
Sébastien Dilly et al.
Biochemical pharmacology, 85(4), 560-569 (2012-12-29)
Valine residues in the pore region of SK2 (V366) and SK3 (V520) were replaced by either an alanine or a phenylalanine to evaluate the impact on the interactions with the allosteric blocker apamin. Unlike TEA which showed high sensitivity to
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
Dong-Mei Zhang et al.
PloS one, 7(10), e47030-e47030 (2012-10-12)
Cajaninstilbene acid (CSA) is a major active component present in the leaves of Cajanus cajan (L.) Millsp. The present study explores the underlying cellular mechanisms for CSA-induced relaxation in rat renal arteries. Vascular reactivity was examined in arterial rings 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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