Month: October 2022

In 2019,Journal of Molecular Liquids included an article by Yoshimura, Yukihiro; Mori, Takahiro; Kaneko, Kazuyoshi; Nogami, Koji; Takekiyo, Takahiro; Masuda, Yuichi; Shimizu, Akio. Recommanded Product: 174501-65-6. The article was titled 《Confirmation of local water structure confined in ionic liquids using H/D exchange》. The information in the text is summarized as follows:

We investigated the local structure of water mols. confined inside ionic liquid (IL) nanodomain structures of 1-butyl-3-methylimidazolium tetrafluoroborate, (abbreviated as [bmim][BF4]) using NMR and Raman spectroscopy to monitor H/D exchange reaction between H2O and D2O water mols. The results showed that fewer than 5 water mols. were probably present in the water domain of the IL nanospace at less than ∼60 water mol%, where the translational motion of water mols. was inhibited and proton exchange rate was highly restricted. These phenomena were attributed to the absence of bulk hydrogen-bonded network structures in the water domain. The H atoms of the HDO mol. tended to interact with BF-4 anions, whereas the D atoms of HDO interacted with the C2 atoms of the bmim+ cation. As a result, water mols. became trapped inside the IL framework, which is likely to be the main cause of the reduction in H/D exchange rate among water mols. in the mixture3-Butyl-1-methyl-1H-imidazol-3-ium tetrafluoroborate(cas: 174501-65-6Recommanded Product: 174501-65-6) was used in this study.

3-Butyl-1-methyl-1H-imidazol-3-ium tetrafluoroborate(cas: 174501-65-6) is a member of lonic liquids. A multidisciplinary study on lonic liquids is emerging, including chemistry, materials science, chemical engineering, and environmental science. More specifically, some important fundamental viewpoints are now different from the original concepts, as insights into the nature of lonic liquids become deeper. For example, the physicochemical properties of lonic liquids are now recognized as ranging broadly from the oft quoted “nonvolatile, non-flammable, and air and water stable” to those that are distinctly volatile, flammable, and unstable. Recommanded Product: 174501-65-6

Referemce:
Imidazole – Wikipedia,
Imidazole | C3H4N2 – PubChem

The author of 《Strategies to investigate biotin interference in light of the FDA safety communication》 were Johnson, Lisa; Li, Danni. And the article was published in Journal of Applied Laboratory Medicine in 2019. Quality Control of 5-((3aS,4S,6aR)-2-Oxohexahydro-1H-thieno[3,4-d]imidazol-4-yl)pentanoic acid The author mentioned the following in the article:

This article outlined strategies to investigate biotin interference in light of FDA safety communication.5-((3aS,4S,6aR)-2-Oxohexahydro-1H-thieno[3,4-d]imidazol-4-yl)pentanoic acid(cas: 58-85-5Quality Control of 5-((3aS,4S,6aR)-2-Oxohexahydro-1H-thieno[3,4-d]imidazol-4-yl)pentanoic acid) was used in this study.

5-((3aS,4S,6aR)-2-Oxohexahydro-1H-thieno[3,4-d]imidazol-4-yl)pentanoic acid(cas: 58-85-5) may be used to elute proteins from avidin/streptavidin resins. It has been used for culturing of oligodendrocytes.Quality Control of 5-((3aS,4S,6aR)-2-Oxohexahydro-1H-thieno[3,4-d]imidazol-4-yl)pentanoic acid And it has been used for blocking endogenous biotin during immunohistology procedures.

Referemce:
Imidazole – Wikipedia,
Imidazole | C3H4N2 – PubChem

The author of 《Neonatal form of biotin-thiamine-responsive basal ganglia disease. Clues to diagnosis.》 were Değerliyurt, Aydan; Gündüz, Mehmet; Ceylaner, Serdar; Ünal, Özlem; Ünal, Sevim. And the article was published in The Turkish journal of pediatrics in 2019. Computed Properties of C10H16N2O3S The author mentioned the following in the article:

Değerliyurt A, Gündüz M, Ceylaner S, Ünal Ö, Ünal S. Neonatal form of biotin-thiamine-responsive basal ganglia disease. Clues to diagnosis. Turk J Pediatr 2019; 61: 261-266. Biotin-thiamine-responsive basal ganglia disease is characterized by seizures, dystonia and encephalopathy attacks, with an acute-subacute onset in childhood. It causes cerebral damage especially with caudate head and putamen involvement and may lead to severe sequelae and even death if left untreated. We report a patient with the neonatal form of biotin-thiamine-responsive basal ganglia disease who presented with encephalopathy and lactic acidosis in the neonatal period together with the diagnostic magnetic resonance imaging (MRI) clues. MRI in the neonatal period revealed bilateral involvement of the putamen, thalamus, and perirolandic cortical regions. However, MRI obtained at 32 months revealed involvement of the caudate nuclei in addition to the putamen and thalami. The neuroimaging findings of our patient and relevant literature indicate that patients with biotin-thiamine-responsive basal ganglia disease who are symptomatic in the neonatal period have putamen, thalami, and perirolandic cortical involvement. However, these patients do not have caudate involvement, unlike the patients who present in childhood. In the experiment, the researchers used 5-((3aS,4S,6aR)-2-Oxohexahydro-1H-thieno[3,4-d]imidazol-4-yl)pentanoic acid(cas: 58-85-5Computed Properties of C10H16N2O3S)

5-((3aS,4S,6aR)-2-Oxohexahydro-1H-thieno[3,4-d]imidazol-4-yl)pentanoic acid(cas: 58-85-5) may be used to elute proteins from avidin/streptavidin resins. It has been used for culturing of oligodendrocytes.Computed Properties of C10H16N2O3S And it has been used for blocking endogenous biotin during immunohistology procedures.

Referemce:
Imidazole – Wikipedia,
Imidazole | C3H4N2 – PubChem

The author of 《Facile synthesis of nanostructured polyaniline in ionic liquids for high solubility and enhanced electrochemical properties》 were Li, Shihua; Yang, Chunying; Sarwar, Shatila; Nautiyal, Amit; Zhang, Pengfei; Du, Haishun; Liu, Na; Yin, Jialin; Deng, Kuilin; Zhang, Xinyu. And the article was published in Advanced Composites and Hybrid Materials in 2019. Recommanded Product: 616-47-7 The author mentioned the following in the article:

As one of the most investigated conducting polymers, polyaniline (PANI) is considered to be of practical use in many applications. In this study, two new ionic liquids, 1-methylimidazolium hydrogen sulfate ([Hmim]HSO4) and 1-methyl-3-n-butylimidazopersulfate ([C4mim]2S2O8), which were synthesized from 1-methylimidazole ([Hmim]), were used as solvent and dopant, oxidizer, resp., for in situ polymerization of aniline. Because of the application of the unique structure of ionic liquid, we obtained the ionic liquid-doped polyaniline (IL-PANI) with high solubility (25 mg mL-1 in DMSO (DMSO)). And by adjusting the ratio of [C4mim]2S2O8 to aniline monomer, the preferred PANI nanofibers could be controlled to form a three-dimensional porous structure. It was found that the ion/electron transport channels could be formed inside the 3D structure. Thus, the redox reactions could occur both at the surface and inside the PANI electrode. Electrochem. characterization showed that the fabricated PANI electrode exhibited a specific capacitance of 489 F g-1 at a c.d. of 0.5 A g-1. Also, the capacity retention rate reached up to 81% after 4000 cycles investigated at 2 A g-1. In addition, a high-energy d. of 80.2 Wh kg-1 was measured when [Hmim]HSO4 was used as an electrolyte. Thus, the present work suggested a new strategy for fabricating high-performance PANI electrode for supercapacitor applications. [Figure not available: see fulltext.]. The results came from multiple reactions, including the reaction of 1-Methyl-1H-imidazole(cas: 616-47-7Recommanded Product: 616-47-7)

1-Methyl-1H-imidazole(cas: 616-47-7) is used as a precursor for the synthesis of pyrrole-imidazole polyamides, ionic liquids such as 1-butyl-3-methylimidazolium hexafluorophosphate.Recommanded Product: 616-47-7

Referemce:
Imidazole – Wikipedia,
Imidazole | C3H4N2 – PubChem

《AACC Guidance Document on Biotin Interference in Laboratory Tests.》 was published in The journal of applied laboratory medicine in 2020. These research results belong to Li, Danni; Ferguson, Angela; Cervinski, Mark A; Lynch, Kara L; Kyle, Patrick B. Application In Synthesis of 5-((3aS,4S,6aR)-2-Oxohexahydro-1H-thieno[3,4-d]imidazol-4-yl)pentanoic acid The article mentions the following:

BACKGROUND: Laboratory tests that use streptavidin-biotin binding mechanisms have the potential to be affected by high circulating biotin concentrations, which would produce positive and negative interference in biotinylated competitive and noncompetitive (sandwich) immunoassays, respectively. Consumption of high-dose biotin supplements for cosmetic or health-related reasons has drawn attention to biotin interference in clinical laboratory tests. Case reports and in vivo studies show that ingestion of supplemental biotin can cause clinically significant errors in select biotinylated immunoassays. CONTENT: This AACC Academy document is intended to provide guidance to laboratorians and clinicians for preventing, identifying, and dealing with biotin interference. In vivo and in vitro spiking studies have demonstrated that biotin concentrations required to cause interference vary by test and by manufacturer. This document includes discussion of biotin’s mechanisms for interference in immunoassays, pharmacokinetics, and results of in vitro and in vivo studies and cites examples of assays known to be affected by high biotin concentrations. This document also provides guidance recommendations intended to assist laboratories and clinicians in identifying and addressing biotin interference in laboratory testing. SUMMARY: The recent increase in the use of high-dose biotin supplements requires laboratorians and clinicians to be mindful of the potential for biotin interference in biotinylated immunoassay-based laboratory tests. Laboratories, clinicians, regulators, and patients should work together to ensure accurate laboratory results. Laboratories have several options for identifying suspected biotin interference in specimens. Alternatively, the relatively fast elimination of biotin allows the potential for rapid follow-up specimen analysis if necessary. In the experiment, the researchers used many compounds, for example, 5-((3aS,4S,6aR)-2-Oxohexahydro-1H-thieno[3,4-d]imidazol-4-yl)pentanoic acid(cas: 58-85-5Application In Synthesis of 5-((3aS,4S,6aR)-2-Oxohexahydro-1H-thieno[3,4-d]imidazol-4-yl)pentanoic acid)

5-((3aS,4S,6aR)-2-Oxohexahydro-1H-thieno[3,4-d]imidazol-4-yl)pentanoic acid(cas: 58-85-5) may be used to elute proteins from avidin/streptavidin resins. It has been used for culturing of oligodendrocytes.Application In Synthesis of 5-((3aS,4S,6aR)-2-Oxohexahydro-1H-thieno[3,4-d]imidazol-4-yl)pentanoic acid And it has been used for blocking endogenous biotin during immunohistology procedures.

Referemce:
Imidazole – Wikipedia,
Imidazole | C3H4N2 – PubChem

《Role of image charges in ionic liquid confined between metallic interfaces》 was published in Physical Chemistry Chemical Physics in 2020. These research results belong to Ntim, Samuel; Sulpizi, Marialore. Category: imidazoles-derivatives The article mentions the following:

The peculiar properties of ionic liquids in confinement have not only become essential for energy storage, catalysis and tribol., but still pose fundamental questions. Recently, an anomalous liquid-solid phase transition has been observed in at. force microscopy experiments for 1-butyl-3-methylimidazolium tetrafluoroborate ([BMIM][BF4]), the transition being more pronounced for metallic surfaces. Image charges have been suggested as the key element driving the anomalous freezing. Using atomistic mol. dynamics simulations, we investigate the impact of image charges on structure, dynamics and thermodn. of [BMIM][BF4] confined between gold electrodes. Our results not only unveil a minor role played by the metal polarisation, but also provide a novel description of the interfacial layer. Although no diffuse layer can be defined in terms of the electrostatic potential, long range effects are clearly visible in the dynamical properties up to 10 nm away from the surface, and are expected to influence viscous forces in the experiments In the experiment, the researchers used many compounds, for example, 3-Butyl-1-methyl-1H-imidazol-3-ium tetrafluoroborate(cas: 174501-65-6Category: imidazoles-derivatives)

3-Butyl-1-methyl-1H-imidazol-3-ium tetrafluoroborate(cas: 174501-65-6) is a member of lonic liquids. A multidisciplinary study on lonic liquids is emerging, including chemistry, materials science, chemical engineering, and environmental science. More specifically, some important fundamental viewpoints are now different from the original concepts, as insights into the nature of lonic liquids become deeper. For example, the physicochemical properties of lonic liquids are now recognized as ranging broadly from the oft quoted “nonvolatile, non-flammable, and air and water stable” to those that are distinctly volatile, flammable, and unstable. Category: imidazoles-derivatives

Referemce:
Imidazole – Wikipedia,
Imidazole | C3H4N2 – PubChem

《Carbene-Catalyzed Formal [3+3] Cycloaddition Reaction for Access to Substituted 2-Phenylbenzothiazoles》 was written by Ni, Zhibin; Mou, Chengli; Zhu, Xun; Qi, Puying; Yang, Song; Chi, Yonggui Robin; Jin, Zhichao. Quality Control of 1,3-Dimesityl-1H-imidazol-3-ium chloride And the article was included in European Journal of Organic Chemistry in 2020. The article conveys some information:

A carbene-catalyzed oxidative cycloaddition reaction is developed for efficient access to multi-functionalized 2-phenylbenzothiazoles. A broad scope of heavily substituted arenes bearing 2-benzothiazole groups were prepared in good to excellent yields. The remote C(sp2)-H bond in the substituted arene products can be activated by Pd catalysts in regio-selective fashion with the direction of the 2-benzothiazole groups. In the experiment, the researchers used many compounds, for example, 1,3-Dimesityl-1H-imidazol-3-ium chloride(cas: 141556-45-8Quality Control of 1,3-Dimesityl-1H-imidazol-3-ium chloride)

1,3-Dimesityl-1H-imidazol-3-ium chloride(cas: 141556-45-8) is a ligand for arylation of aldehydes and for carbene catalyzed intermolecular arylation of C-H bonds. It is used as a phosphine-free ligand in various metal-catalyzed coupling reactions, often with advantageous results in difficult cases.Quality Control of 1,3-Dimesityl-1H-imidazol-3-ium chloride

Referemce:
Imidazole – Wikipedia,
Imidazole | C3H4N2 – PubChem

Shen, Hui; Ge, Yiran; Wang, Junwei; Li, Hui; Xu, Yungen; Zhu, Qihua published their research in Bioorganic & Medicinal Chemistry Letters in 2021. The article was titled 《Design, synthesis and biological evaluation of novel molecules as potent PARP-1 inhibitors》.Recommanded Product: 2-Chloro-1H-benzo[d]imidazole The article contains the following contents:

Two series of novel compounds with pthalazin-1(2H)-one moiety such as I [X = N, CH; Y = C(O), CH2; Z = N, CH; R = H, OMe, OEt; R1 = H, C(O)NH2] and 4-(4-fluoro-3-(1,2,3,4-tetrahydrobenzo[4,5]imidazo[1,2-a]pyrazine-2-carbonyl)benzyl)phthalazin-1(2H)-one II [R = H, 7-Me, 7-F, 7-Cl] with inhibition activity against PARP-1 were designed and synthesized. All target compounds I and II were evaluated for their PARP-1 inhibition activity and compounds with high PARP-1 inhibition activity were selected to assess for cellular assays in vitro. Among the synthesized compounds compound II [R = 7-F] displayed impressive results in both PARP-1 enzyme inhibition with IC50 value of 0.51 nM and anti-proliferation activity against HCT116 and HCC1937 cell lines with IC50 values of 6.62 nM and 12.65 nM, resp. Also, compound II [R = 7-F] exhibited good metabolic stability in vitro with t1/2 of 173.25 min and CLint of 0.04 mL/min/mg.. Prediction of mol. properties and protein docking were applied to structure design. Prediction of mol. properties and protein docking of compound II [R = 7-F] were applied to structure design. This study provided potential lead compounds and designed the directions for the development of PARP-1 inhibitors. After reading the article, we found that the author used 2-Chloro-1H-benzo[d]imidazole(cas: 4857-06-1Recommanded Product: 2-Chloro-1H-benzo[d]imidazole)

2-Chloro-1H-benzo[d]imidazole(cas: 4857-06-1) binds to monoclonal antibodies, inhibiting their binding to their corresponding antigens. This activity may be due to its ability to bind covalently with amino groups on proteins and other molecules.Recommanded Product: 2-Chloro-1H-benzo[d]imidazole

Referemce:
Imidazole – Wikipedia,
Imidazole | C3H4N2 – PubChem

In 2022,Saeedian Moghadam, Ebrahim; Al-Saadi, Abdullah Mohammed; Talebi, Meysam; Amanlou, Massoud; Amini, Mohsen; Abdel-Jalil, Raid published an article in Synthetic Communications. The title of the article was 《Design, synthesis, and bioactivity investigation of novel benzimidazole derivatives as potent urease inhibitors》.Product Details of 934-32-7 The author mentioned the following in the article:

Herein, we synthesized a series of novel benzimidazole derivatives and screened their bioactivity as potent urease inhibitors. The structure of the was elucidated using spectroscopic technics (1H-NMR, 13C-NMR, MS), elemental anal., and m.p. The urease inhibition activity was evaluated using the urease enzyme inhibition kit. All , except , showed higher urease inhibition activity (0.77 to 6.25 μM) in comparison to thiourea and hydroxyurea as standard (IC50: 22 and 100 μM resp.). and exhibited the best activity with the IC50 value of 0.77 and 1.26 μM resp. A mol. docking study showed the mode of interactions between the most active compound and enzyme active site. To investigate the cytotoxicity profile of the target compounds, an MTT assay was done on two different cell lines which showed all have IC50 values higher than 50 μM on both tested cell lines.1H-Benzo[d]imidazol-2-amine(cas: 934-32-7Product Details of 934-32-7) was used in this study.

1H-Benzo[d]imidazol-2-amine(cas: 934-32-7) can be used in the hydrolysis of a choline carbonate. It was also used in the synthesis of imidazo[1,2-a]benzimidazoles.Product Details of 934-32-7

Referemce:
Imidazole – Wikipedia,
Imidazole | C3H4N2 – PubChem

In 2022,Steuer, Lena; Kaifer, Elisabeth; Himmel, Hans-Jorg published an article in European Journal of Organic Chemistry. The title of the article was 《Redox-Active Dendrimer-Like Oligoguanidines and Their Use in a Proton-Coupled Electron Transfer Reaction》.Reference of 2-Chloro-1H-benzo[d]imidazole The author mentioned the following in the article:

Redox-active organic dendrimers are of interest for a variety of applications, e. g. as components in optoelectronic devices and energy-storage (battery) materials, and were also used to model enzymic reactivity. Here, we report the first synthesis of redox-active dendrimer-like oligoguanidines, assembling six or twelve guanidino groups attached to aromatic cores in one mol. The novel oligoguanidines, being strong electron donors, are characterized in their stable (neutral and dicationic) redox states. Redox processes occur preferentially at the core, while the periphery provides highly Broensted basic sites. The combined electron and proton acceptor properties of the mols. in their stable oxidized dicationic redox state motivate applications in proton-coupled electron transfer (PCET) processes. In this work, we test their application in a representative intramol. oxidative aryl-aryl coupling reaction. The experimental process involved the reaction of 2-Chloro-1H-benzo[d]imidazole(cas: 4857-06-1Reference of 2-Chloro-1H-benzo[d]imidazole)

2-Chloro-1H-benzo[d]imidazole(cas: 4857-06-1) binds to monoclonal antibodies, inhibiting their binding to their corresponding antigens. This activity may be due to its ability to bind covalently with amino groups on proteins and other molecules.Reference of 2-Chloro-1H-benzo[d]imidazole

Referemce:
Imidazole – Wikipedia,
Imidazole | C3H4N2 – PubChem