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250358-46-4

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250358-46-4 Usage

General Description

1-Ethyl-3-methylimidazol-3-ium, hydroxide is a chemical compound with the formula C 7H 11N 2O. It is a type of ionic liquid, which is a salt in the liquid state. 1-ethyl-3-methylimidazol-3-ium,hydroxide is often used as a solvent or electrolyte in electrochemical processes due to its stability and conductivity. It is also being studied for its potential applications in biotechnology and pharmaceuticals. The hydroxide ion in this compound makes it a powerful base, and it is commonly used in organic synthesis and catalysis. Additionally, its unique chemical structure and properties make it a promising candidate for various industrial and scientific applications.

Check Digit Verification of cas no

The CAS Registry Mumber 250358-46-4 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,5,0,3,5 and 8 respectively; the second part has 2 digits, 4 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 250358-46:
(8*2)+(7*5)+(6*0)+(5*3)+(4*5)+(3*8)+(2*4)+(1*6)=124
124 % 10 = 4
So 250358-46-4 is a valid CAS Registry Number.

250358-46-4Relevant articles and documents

Anion amphiprotic ionic liquids as protic electrolyte matrices allowing sodium metal plating

Jankowski, Piotr,Matuszek, Karolina,Treskow, Marcel,Armand, Michel,MacFarlane, Douglas,Johansson, Patrik

, p. 12523 - 12526 (2019)

The sodium-ion battery (SIB) is proposed as a complementary technology to today's commercially dominant lithium-ion battery (LIB). While much know-how can be transferred from LIBs to SIBs, adjustments are still necessary, not the least for the electrolytes employed. Here the use of anion amphiprotic ionic liquid (AAIL) based electrolytes is proposed for SIB application. Two different AAILs, based on organic trifluoromethylsulfonylamide (TFSAm) and inorganic HSO4- anions, respectively, doped with NaTFSI salt have been studied, focusing on electrochemical stability and transport properties, complemented by studies of the ion-ion interactions, and final sodium-ion battery performance via stripping/plating vs. sodium metal electrodes.

Ionic parachor and its application II. Ionic liquid homologues of 1-alkyl-3-methylimidazolium Propionate {[Cnmim][Pro] (n = 2-6)}

Tong, Jing,Ma, Xue,Kong, Yu-Xia,Chen, Yan,Guan, Wei,Yang, Jia-Zhen

, p. 5971 - 5976 (2012)

Five propionic acid ionic liquids (PrAILs) [Cnmim][Pro] (n = 2-6) (1-alkyl-3-methylimidazolium propionate) have been prepared by the neutralization method and characterized by 1H NMR spectroscopy and differential scanning calorimetry

Intrinsically electrochromic ionic liquids based on vanadium oxides: Illustrating liquid electrochromic cells

Branco, Aida,Belchior, Joao,Branco, Luis C.,Pina, Fernando

, p. 25627 - 25630 (2013)

Five intrinsically electrochromic ionic liquids based on vanadium oxides are obtained by a simple and efficient acid base neutralization of the cation hydroxide and ammonium vanadate. These novel ionic liquids play the role of the electrochrome and electrolyte in liquid electrochromic cells.

Novel ionic liquids composed of only azole ions

Ogihara, Wataru,Yoshizawa, Masahiro,Ohno, Hiroyuki

, p. 1022 - 1023 (2004)

Novel ionic liquids (ILs) composed of azole type cation and anion were prepared. Triazole and tetrazole were coupled with 1-ethyl-3-methylimidazolium hydroxide. Obtained tetrazole salt was liquid at room temperature showing only glass transition temperature at -89°C. The ionic conductivity reached to 8.9 × 10-3 S cm-1 at room temperature reflecting low viscosity of 42.5 cP at 25°C. This is the first report on the ILs based on only azole type ions.

1-Ethyl-3-methylimidazolium tartrate chiral ionic liquids: preparation, characterization and opportunities thereof

Castellan, Tessa,Cuyamendous, Claire,Fitremann, Juliette,Galano, Jean-Marie,Oger, Camille,Durand, Thierry,Guillen, Frédéric,Génisson, Yves

, p. 18739 - 18748 (2018)

A unified acid/base synthetic access to tartrate-based chiral ionic liquids relying on the generation of cation hydroxide salts with AgOH was challenged with the preparation of sensitive 1-ethyl-3-methylimidazolium derivatives. Systematic variation of the starting tartaric acid stoichiometry and configuration led to eight stereoisomeric 1-ethyl-3-methylimidazolium hydrogen tartrate or di-(1-ethyl-3-methylimidazolium)tartrate entities. These salts were all characterised as proper ionic liquids. An unprecedented influence of the configuration ((2S,3S), or (2R,3R) vs. racemic or meso) on dynamic viscosity was observed. The relevance of such tartrate salts as task-specific ionic liquids was demonstrated in a synthetically useful base-promoted intramolecular cyclisation of a C2-symmetrical bis-epoxide en route to the total synthesis of phytofuran metabolites.

Novel ascorbic acid based ionic liquids for the in situ synthesis of quasi-spherical and anisotropic gold nanostructures in aqueous medium

Dinda, Enakshi,Si, Satyabrata,Kotal, Atanu,Mandal, Tarun K.

, p. 5528 - 5537 (2008)

A series of newly designed ascorbic acid based room temperature ionic liquids were successfully used to prepare quasi-spherical and anisotropic gold nanostructures in an aqueous medium at ambient temperature. The synthesis of these room temperature ionic liquids involves, first, the preparation of a 1-alkyl (such as methyl, ethyl, butyl, hexyl, octyl, and decyl) derivative of 3-methylimidazolium hydroxide followed by the neutralization of the derivatised product with ascorbic acid. These ionic liquids show significantly better thermal stability and their glass transition temperature (Tg) decreases with increasing alkyl chain length. The ascorbate counter anion of these ionic liquids acts as a reducing agent for HAuCl4 to produce metallic gold and the alkylated imidazolium counter cation acts as a capping/shape-directing agent. It has been found that the nature of the ionic liquids and the mole ratio of ionic liquid to HAuCl4 has a significant effect on the morphology of the formed gold nanostructures. If an equimolar mixture of ionic liquid and HAuCl4 is used, predominantly anisotropic gold nanostructures are formed and by varying the alkyl chain length attached to imidazolium cation of the ionic liquids, various particle morphologies can formed, such as quasispherical, raspberry-like, flakes or dendritic. A probable formation mechanism for such anisotropic gold nanostructures has been proposed, which is based on the results of some control experiments.

Extraction of polysaccharides from bran with phosphonate or phosphinate-derived ionic liquids under short mixing time and low temperature

Abe, Mitsuru,Fukaya, Yukinobu,Ohno, Hiroyuki

, p. 1274 - 1280 (2010)

A novel series of 1-alkyl-3-methylimidazolium phosphonate and phosphinate-type ionic liquids is able to extract polysaccharides from bran, which is a renewable biomass. In particular, 1-ethyl-3-methylimidazolium phosphinate is a novel low viscosity polar ionic liquid with which one can extract a series of polysaccharides from bran without heating. The physico-chemical properties of a series of these salts are also determined, in a study of the ability of these ionic liquids to extract cellulose and other polysaccharides from bran. The Royal Society of Chemistry 2010.

Synthesis and antibacterial activity of ionic liquids and organic salts based on penicillin g and amoxicillin hydrolysate derivatives against resistant bacteria

Branco, Luís C.,Dias, Ana Rita,Dias, Vitorino,Ferraz, Ricardo,Noronha, Jo?o Paulo,Petrovski, ?eljko,Pinheiro, Luís,Prudêncio, Cristina,Santos, Miguel M.,Silva, Dário

, (2020/03/13)

The preparation and characterization of ionic liquids and organic salts (OSILs) that contain anionic penicillin G [secoPen] and amoxicillin [seco-Amx] hydrolysate derivatives and their in vitro antibacterial activity against sensitive and resistant Escherichia coli and Staphylococcus aureus strains is reported. Eleven hydrolyzed β-lactam-OSILs were obtained after precipitation in moderate-to-high yields via the neutralization of the basic ammonia buffer of antibiotics with different cation hydroxide salts. The obtained minimum inhibitory concentration (MIC) data of the prepared compounds showed a relative decrease of the inhibitory concentrations (RDIC) in the order of 100 in the case of [C2OHMIM][seco-Pen] against sensitive S. aureus ATCC25923 and, most strikingly, higher than 1000 with [C16Pyr][seco-Amx] against methicillin-resistant Staphylococcus aureus (MRSA) ATCC 43300. These outstanding in vitro results showcase that a straightforward transformation of standard antibiotics into hydrolyzed organic salts can dramatically change the pharmaceutical activity of a drug, including giving rise to potent formulations of antibiotics against deadly bacteria strains.

Ionic Liquids and Salts from Ibuprofen as Promising Innovative Formulations of an Old Drug

Santos, Miguel M.,Raposo, Luís R.,Carrera, Gon?alo V. S. M.,Costa, Alexandra,Dionísio, Madalena,Baptista, Pedro V.,Fernandes, Alexandra R.,Branco, Luís C.

supporting information, p. 907 - 911 (2019/04/17)

Herein we report the synthesis of novel ionic liquids (ILs) and organic salts by combining ibuprofen as anion with ammonium, imidazolium, or pyridinium cations. The methodology consists of an acid–base reaction of neutral ibuprofen with cation hydroxides, which were previously prepared by anion exchange from the corresponding halide salts with Amberlyst A-26(OH). In comparison with the parent drug, these organic salts display higher solubility in water and biological fluids and a smaller degree of polymorphism, which in some cases was completely eliminated. With the exception of [C16Pyr][Ibu] and [N1,1,2,2OH1][Ibu], the prepared salts did not affect the viability of normal human dermal fibroblasts or ovarian carcinoma (A2780) cells. Therefore, these ibuprofen-based ionic liquids may be very promising lead candidates for the development of effective formulations of this drug.

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