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333018

Sigma-Aldrich

Choline hydroxide solution

45 wt. % in methanol

Synonyme(s) :

(2-Hydroxyethyl)trimethylammonium hydroxide, (beta-Hydroxyethyl)trimethylammonium hydroxide, 2-Hydroxy-N,N,N-trimethylethanaminium hydroxide

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About This Item

Formule linéaire :
HOCH2CH2N(CH3)3OH
Numéro CAS:
Poids moléculaire :
121.18
Numéro MDL:
Code UNSPSC :
12352000
ID de substance PubChem :
Nomenclature NACRES :
NA.22

Forme

liquid

Contient

0.5% paraformaldehyde as stabilizer

Concentration

45 wt. % in methanol

Indice de réfraction

n20/D 1.4186

Densité

0.945 g/mL at 25 °C

Chaîne SMILES 

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

InChI

1S/C5H14NO.H2O/c1-6(2,3)4-5-7;/h7H,4-5H2,1-3H3;1H2/q+1;/p-1

Clé InChI

KIZQNNOULOCVDM-UHFFFAOYSA-M

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Description générale

Choline hydroxide solution, also known as choline base, is a strong organic base that can be used in the chemical industry as a solvent, catalyst, and corrosion inhibitor. It can also be used as a stabilizer for quaternary ammonium compounds and as a phase transfer agent in organic synthesis.

Application

Choline hydroxide solution can be used as a catalyst in the efficient conversion of CO2 and 2-aminobenzonitriles to quinazoline-2,4(1H,3H)-dione derivatives.

Mention d'avertissement

Danger

Classification des risques

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

Organes cibles

Eyes,Central nervous system

Code de la classe de stockage

3 - Flammable liquids

Classe de danger pour l'eau (WGK)

WGK 2

Point d'éclair (°F)

73.4 °F - closed cup

Point d'éclair (°C)

23 °C - closed cup

Équipement de protection individuelle

Faceshields, Gloves, Goggles, type ABEK (EN14387) respirator filter


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Consulter la Bibliothèque de documents

Xue-Dan Hou et al.
Biotechnology and bioengineering, 112(1), 65-73 (2014-07-30)
In this work, 28 cholinium ionic liquids (ILs), most of which are good solvents for dissolving lignin, were used for rice straw pretreatment to improve subsequent enzymatic hydrolysis. The anion exerted a significant effect on the pretreatment effectiveness of the
Kyung-Eui Park et al.
Bioscience, biotechnology, and biochemistry, 78(6), 981-988 (2014-07-19)
Phospholipase D (PLD) catalyzes the hydrolysis of phosphatidylcholine (PC), the most abundant phospholipids of plasma membrane, resulting in the production of choline and phosphatidic acid (PA). Choline is a precursor of the neurotransmitter acetylcholine, whereas PA functions as an intracellular
Yan-Xia An et al.
Bioresource technology, 192, 165-171 (2015-06-01)
Pretreatment of lignocelluloses is a key step in the biorefinery for production of biofuels and valuable platform chemicals. In this work, various lignocelluloses were pretreated using cholinium ionic liquids (ILs) that are wholly composed of biomaterials, and fractionated into carbohydrate-rich
Bieke Onghena et al.
Dalton transactions (Cambridge, England : 2003), 43(30), 11566-11578 (2014-06-19)
The ionic liquid choline bis(trifluoromethylsulfonyl)imide, [Chol][Tf2N], was used for the extraction of neodymium(III), in combination with choline hexafluoroacetylacetonate, [Chol][hfac], as the extractant. The binary mixture of [Chol][Tf2N] and water shows temperature-dependent phase behavior, with an upper critical solution temperature of

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