Tag: 200-300

Computed Properties of C15H16OIn 2022, Sun, Ruiting;Lu, Fuwei;Yu, Chunmei;Yang, Yanan;Qiao, Lizhen;Liu, Anmin published 《Peanut shells-derived biochars as adsorbents for the pipette-tip solid-phase extraction of endocrine-disrupting phenols in water, milk and beverage》. 《Journal of Chromatography A》published the findings. The article contains the following contents:

In the present work, a type of biochar materials derived from carbonizing peanut shells were obtained and employed as the adsorbents of pipet-tip solid-phase extraction (PT-SPE) for the enrichment and determination of six endocrine-disrupting phenols (EDPs) in combination with high-performance liquid chromatog. equipped with UV detector (HPLC-UV). Abundant aliphatic and aromatic carbon structures and functional groups from polar heteroatoms (N, O, S) were distributed in the low-cost and eco-friendly peanut shells-derived biochar materials and were favorable for the enrichment of target EDPs. Moreover, the theor. calculation based on d. functional theory (DFT) proved that the effective enrichment of EDPs in aqueous samples benefited from the effective adsorption on the peanut shells-derived biochar materials. The exptl. factors influencing the extraction efficiency were investigated, including adsorbent amount, aspirating/dispensing cycles, the type of elution solvent and elution times, salt addition, sample solution pH and type and volume of washing solvent. Under the optimal conditions, the proposed PT-SPE method exhibited good linear relationship (R2 > 0.993) in the range of 0.5-400μg/L and low limits of detections (LODs) from 0.25 to 2.5μg/L, as well as good precision and accuracy with relative standard deviations (RSDs) of 0.3%-13.2% and recoveries of 83.5%-117.1%. Finally, the biochars-based miniaturized pretreatment method was employed for the determination of six EDPs in bottled water, milk, tea beverage and disposal plastic bag soaked solution with recoveries from 77.5% to 116.5%. The experimental procedure involved many compounds, such as 4-(2-Phenylpropan-2-yl)phenol (cas: 599-64-4) .

4-(2-Phenylpropan-2-yl)phenol(cas:599-64-4) is a natural product found in Panax ginseng.Computed Properties of C15H16O 4-(2-Phenylpropan-2-yl)phenol is a useful reagent for preparing and characterizing aromatic polyphosphonates as high refractive index polymers.

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Szostak, Michal;Spain, Malcolm;Procter, David J. published 《Ketyl-Type Radicals from Cyclic and Acyclic Esters are Stabilized by SmI₂(H₂O)_n: The Role of SmI₂(H₂O)_n in Post-Electron Transfer Steps》 in 2014. The article was appeared in 《Journal of the American Chemical Society》. They have made some progress in their research.Related Products of 579-43-1 The article mentions the following:

Mechanistic details pertaining to the SmI₂-H₂O-mediated reduction and reductive coupling of 6-membered lactones, the first class of simple unactivated carboxylic acid derivatives that had long been thought to lie outside the reducing range of SmI₂, were elucidated. Results provide new exptl. evidence that water enables the productive electron transfer from Sm(II) by stabilization of the radical anion intermediate rather than by solely promoting the first electron transfer as originally proposed. Notably, these studies suggest that all reactions involving the generation of ketyl-type radicals with SmI₂ occur under a unified mechanism based on the thermodn. control of the second electron transfer step, thus providing a blueprint for the development of a broad range of novel chemoselective transformations via open-shell electron pathways. To complete the study, the researchers used rel-(1R,2S)-1,2-Diphenylethane-1,2-diol (cas: 579-43-1) .

Desymmetrization of rel-(1R,2S)-1,2-Diphenylethane-1,2-diol(cas:579-43-1 Related Products of 579-43-1) using chiral phosphine catalyst has been reported. Conversion of meso-hydrobenzoin to trans-stillbene oxide by treatment with an aryl sulfonyl chloride and aqueous sodium hydroxide has been reported.

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Wang, Lei;Zhang, Xiao;Xia, Raymond Yang;Yang, Chao;Guo, Lin;Xia, Wujiong published 《Electrochemical Reduction of Aldehydes and Ketones for the Synthesis of Alcohols and Diols under Ambient Conditions》. The research results were published in《Synlett》 in 2022.HPLC of Formula: 579-43-1 The article conveys some information:

A sustainable, practical, and direct strategy for the reduction of carbonyl compounds, including aldehydes and ketones, by an electrochem. pathway is presented, affording a variety of alcs. or diols as major products with decent yields. The reaction proceeds smoothly in the air at ambient temperatures with DABCO as the sacrificial reductant. Mechanistic studies revealed that direct electrochem. reduction followed by either protonation or radical-radical homocoupling is the main pathway.rel-(1R,2S)-1,2-Diphenylethane-1,2-diol (cas: 579-43-1) were involved in the experimental procedure.

Desymmetrization of rel-(1R,2S)-1,2-Diphenylethane-1,2-diol(cas:579-43-1 HPLC of Formula: 579-43-1) using chiral phosphine catalyst has been reported. Conversion of meso-hydrobenzoin to trans-stillbene oxide by treatment with an aryl sulfonyl chloride and aqueous sodium hydroxide has been reported.

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Aillon Garcia, Paula;Parga-Landa, Blanca published 《An improved proposal for using laminar copper as a biocidal material in touch surfaces in a hospital Intensive Care Unit (ICU)》. The research results were published in《Environmental Science and Pollution Research》 in 2021.Synthetic Route of C14H22O The article conveys some information:

The use of copper for reducing nosocomial infections or healthcare-acquired infections (HAI) has been carried out in intensive care units (ICU) by replacing some objects generally made of stainless steel or other materials with solid pieces of copper. The authors′ proposal for a sustainable use of copper consists of introducing it in a “lamina + adhesive” format. This proposal has been tested in an ICU at the Ceuta Hospital in Spain. It has been found to provide an equally efficient solution as antibacterial material than the usual “solid” format, but with only a layer of 50 μ of copper, which is a high-cost and limited resource. After that intervention, some improvements are also proposed: a standardization of the pieces chosen to cover with a lamina of copper for saving material; and another method of replacement aiming to lower the time that the ICU cannot be used. To ensure that the proposed bonding method is harmless to human health and the adhesive does not interfere with the indoor environment by releasing toxic chems., the “lamina + adhesive” sheet has been further tested. The results and proposals are briefly shown. The experimental procedure involved many compounds, such as 4-tert-Octylphenol (cas: 140-66-9) .

4-tert-Octylphenol(cas: 140-66-9) has been used as a reference standard for the determination of the analyte in water samples using ultra-high-performance liquid chromatography/tandem mass spectrometry (UHPLC/MS/MS).Synthetic Route of C14H22O

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Li, Z. W.;Wang, J. H. published 《Analysis of volatile aroma compounds from five types of Fenghuang Dancong tea using headspace-solid phase microextraction combined with GC-MS and GC-olfactometry》 in 2021. The article was appeared in 《International Food Research Journal》. They have made some progress in their research.Application of 2425-77-6 The article mentions the following:

The present work describes the relationship between volatile aroma components and flavors of Fenghuang Dancong tea. Volatile aroma components of five types of Fenghuang Dancong tea namely Baxian, Milanxiang, Yulanxiang, Guihuaxiang, and Yinhuaxiang were extracted by headspace solid-phase microextraction (HS-SPME), then analyzed by gas chromatog.- mass spectrometry (GC-MS) technique and gas chromatog. olfactometry (GC-O) techniques. The GC-MS results showed that a total of 116 volatile components were detected, among which 21 (including alcs., esters, olefins, aldehydes, ketones, and alkanes) were commonly detected in all types of tea. Based on GC-O anal., 26 active ingredients that mainly contribute to grassy, sweet, floral, fruity, woody, and honey aromas were detected. Among these ingredients, four compounds including linalool oxide I, linalool, nerol, and neroli, which give floral, sweet, and honey aromas were abundant (with high aroma intensity) in all five types of tea. This suggests that these compounds are the main components contributing to the unique aroma of Fenghuang Dancong tea. The experimental procedure involved many compounds, such as 2-Hexyl-1-decanol (cas: 2425-77-6) .

2-Hexyl-1-decanol(cas: 2425-77-6) may be employed as an organic solvent to study the extraction of non-polar acidic drugs from human plasma by parallel artificial liquid membrane extraction (PALME). Application of 2425-77-6

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Zhang, Leijiang;Wang, Bianna;Ma, Wenjie;Li, Bing;Liu, Yonglei;Du, Yunchen published 《Fe₃C/Fe nanoparticles decorated three-dimensional nitrogen-doped carbon foams for highly efficient bisphenol A removal through peroxymonosulfate activation》. The research results were published in《Chemical Engineering Journal (Amsterdam, Netherlands)》 in 2022.Name: 4-(2-Phenylpropan-2-yl)phenol The article conveys some information:

The design of heterogeneous catalysts has become one of the most important steps in the popularization of advanced oxidation processes for wastewater remediation. With a nitrate-assisted polymer-bubbling strategy, we prepared three-dimensional carbon foams decorated by commensal Fe₃C/Fe nanoparticles through a direct pyrolysis of the mixture of polyvinyl pyrrolidone and ferric nitrate nonahydrate. The as-obtained composites, Fe₃C/Fe@NCFs, are employed as heterogeneous peroxymonosulfate (PMS) activators to remove bisphenol A (BPA) in aquatic environments with a predetermined concentration It is found that both Fe₃C/Fe nanoparticles and N-doped carbon frameworks can activate PMS to release powerful oxidative species for BPA removal. The effect of pyrolysis temperature on the catalytic performance of Fe₃C/Fe@NCFs is studied in detail. The results reveal that high pyrolysis temperature induces the agglomeration of Fe₃C/Fe nanoparticles and the loss of N content, and low pyrolysis temperature only generates low-crystallinity carbon frameworks and small proportion of graphitic N configuration. Therefore, Fe₃C/Fe@NCFs from moderate temperature (700 °C) can produce the highest BPA removal efficiency. The synergy of Fe₃C/Fe nanoparticles and N-doped carbon frameworks, as well as the structure advantages is clearly established in comparison with some control samples. Quenching experiments and ESR (EPR) tests indicate that BPA can be degraded in both radical pathway and non-radical pathway, where SO·^–₄, ·O^–₂, and ¹O₂ are primary reactive species. In addition, the influences of some routine factors and actual water backgrounds were also investigated and analyzed comprehensively. To complete the study, the researchers used 4-(2-Phenylpropan-2-yl)phenol (cas: 599-64-4) .

4-(2-Phenylpropan-2-yl)phenol(cas:599-64-4) is a natural product found in Panax ginseng.Name: 4-(2-Phenylpropan-2-yl)phenol 4-(2-Phenylpropan-2-yl)phenol is a useful reagent for preparing and characterizing aromatic polyphosphonates as high refractive index polymers.

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Formula: C16H34O《Strategic side-chain engineering approach for optimizing thermoelectric properties of isoindigo-based conjugated polymers》 was published in 2020. The authors were Yoon, Sang Eun;Shin, So Jeong;Lee, Sang Yeon;Jeon, Gyeong G.;Kang, Hyunwoo;Seo, Hyungtak;Zheng, Jian;Kim, Jong H., and the article was included in《ACS Applied Polymer Materials》. The author mentioned the following in the article:

Strategic side-chain engineering has led to an increase in the power factor of isoindigo-based conjugated polymers (CPs) by an order of magnitude. We investigated the effect of side chains on the elec. properties of doped isoindigo-based CPs and gained insight into structure-elec. property-thermoelec. transport intercorrelation for optimization of thermoelec. CPs. For this study, we designed and synthesized four isoindigo-based polymers having different types of alkyl chains. The size of the alkyl chains significantly affected the crystallinity of the films, which subsequently resulted in different charge carrier mobilities and diffusion efficiencies of the mol. dopant. Amorphous polymers with bulkier alkyl chains promoted efficient dopant diffusion while their carrier mobility was relatively lower than that of crystalline CPs. Systematic characterizations on the structural, elec., and thermoelec. properties of the CP films showed a trade-off effect for these side-chain structures for optimization of the thermoelec. effect, and with the optimized structure, we obtained a significantly improved power factor up to 37.8μW·m^-1·K^-2. This study suggests that exercising fine control of crystallinity through side-chain modification of the fixed polymer backbone can be a simple but very effective approach to maximizing organic thermoelec. effects of CPs. And 2-Hexyl-1-decanol (cas: 2425-77-6) was used in the research process.

2-Hexyl-1-decanol(cas: 2425-77-6) has been shown to inhibit the growth of b16 mouse melanoma cells, suggesting it may be useful for treating skin cancer.Formula: C16H34O This fatty acid also has transport properties and can form hydrogen bonds with other molecules.

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Paradiz Dominguez, Maximilian;Demirkurt, Beguem;Grzelka, Marion;Bonn, Daniel;Galmiche, Laurent;Audebert, Pierre;Brouwer, Albert M. published 《Fluorescent Liquid Tetrazines》 in 2021. The article was appeared in 《Molecules》. They have made some progress in their research.Synthetic Route of C16H34O The article mentions the following:

Tetrazines with branched alkoxy substituents are liquids at ambient temperature that despite the high chromophore d. retain the bright orange fluorescence that is characteristic of this exceptional fluorophore. Here, we study the photophys. properties of a series of alkoxy-tetrazines in solution and as neat liquids We also correlate the size of the alkoxy substituents with the viscosity of the liquids We show using time-resolved spectroscopy that intersystem crossing is an important decay pathway competing with fluorescence, and that its rate is higher for 3,6-dialkoxy derivatives than for 3-chloro-6-alkoxytetrazines, explaining the higher fluorescence quantum yields for the latter. Quantum chem. calculations suggest that the difference in rate is due to the activation energy required to distort the tetrazine core such that the nπ*S₁ and the higher-lying ππ*T₂ states cross, at which point the spin-orbit coupling exceeding 10 cm^-1 allows for efficient intersystem crossing to occur. Femtosecond time-resolved anisotropy studies in solution allow us to measure a pos. relationship between the alkoxy chain lengths and their rotational correlation times, and studies in the neat liquids show a fast decay of the anisotropy consistent with fast exciton migration in the neat liquid films. And 2-Hexyl-1-decanol (cas: 2425-77-6) was used in the research process.

2-Hexyl-1-decanol(cas: 2425-77-6) has been shown to inhibit the growth of b16 mouse melanoma cells, suggesting it may be useful for treating skin cancer.Synthetic Route of C16H34O This fatty acid also has transport properties and can form hydrogen bonds with other molecules.

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Abednatanzi, Sara;Gohari Derakhshandeh, Parviz;Tack, Pieter;Muniz-Miranda, Francesco;Liu, Ying-Ya;Everaert, Jonas;Meledina, Maria;Vanden Bussche, Flore;Vincze, Laszlo;Stevens, Christian V.;Van Speybroeck, Veronique;Vrielinck, Henk;Callens, Freddy;Leus, Karen;Van Der Voort, Pascal published 《Elucidating the promotional effect of a covalent triazine framework in aerobic oxidation》 in 2020. The article was appeared in 《Applied Catalysis, B: Environmental》. They have made some progress in their research.Recommanded Product: 2425-77-6 The article mentions the following:

Synergistic catalysis holds great promise to enhance the catalytic performance of heterogeneous catalysts suffering from sluggish reaction kinetics. Much effort has been dedicated to the development of bimetallic systems in which the two promoter elements display synergistic benefits compared to monometallic counterparts. However, the use of bimetallic catalysts inescapably raises the cost of preparation and environmental issues. This study discovers a synergistic effect when using a bipyridine covalent triazine framework (bipy-CTF) as support for an Ir^III complex in the aerobic oxidation reaction. The detailed mechanistic study provides insights into the function of the bipy-CTF in this synergistic catalysis. The EPR and in-situ XANES analyses confirm the applicability of bipy-CTF to activate oxygen and alc., resulting in an enhancement of the performance of the Ir^III complex to exceed the activity of the homogeneous counterpart. This is an unprecedented report on promoting the activity of a heterogeneous catalyst through its solid support.2-Hexyl-1-decanol (cas: 2425-77-6) were involved in the experimental procedure.

2-Hexyl-1-decanol(cas: 2425-77-6) has been shown to inhibit the growth of b16 mouse melanoma cells, suggesting it may be useful for treating skin cancer.Recommanded Product: 2425-77-6 This fatty acid also has transport properties and can form hydrogen bonds with other molecules.

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Koelmel, Jeremy P.;Lin, Elizabeth Z.;DeLay, Kayley;Williams, Antony J.;Zhou, Yakun;Bornman, Riana;Obida, Muvhulawa;Chevrier, Jonathan;Godri Pollitt, Krystal J. published 《Assessing the External Exposome Using Wearable Passive Samplers and High-Resolution Mass Spectrometry among South African Children Participating in the VHEMBE Study》 in 2022. The article was appeared in 《Environmental Science & Technology》. They have made some progress in their research.Computed Properties of C15H16O The article mentions the following:

Children in low- and middle-income countries are often exposed to higher levels of chems. and are more vulnerable to the health effects of air pollution. Little is known about the diversity, toxicity, and dynamics of airborne chem. exposures at the mol. level. We developed a workflow employing state-of-the-art wearable passive sampling technol. coupled with high-resolution mass spectrometry to comprehensively measure 147 children’s personal exposures to airborne chems. in Limpopo, South Africa, as part of the Venda Health Examination of Mothers, Babies, and Their Environment (VHEMBE). 637 environmental exposures were detected, many of which have never been measured in this population; of these 50 airborne chem. exposures of concern were detected, including pesticides, plasticizers, organophosphates, dyes, combustion products, and perfumes. Biocides detected in wristbands included p,p’-dichlorodiphenyltrichloroethane (p,p’-DDT), p,p’-dichlorodiphenyldichloroethane (p,p’-DDD), p,p’-dichlorodiphenyldichloroethylene (p,p’-DDE), propoxur, piperonyl butoxide, and triclosan. Exposures differed across the assessment period with 27% of detected chems. observed to be either higher or lower in the wet or dry seasons. And 4-(2-Phenylpropan-2-yl)phenol (cas: 599-64-4) was used in the research process.

4-(2-Phenylpropan-2-yl)phenol(cas:599-64-4) is a natural product found in Panax ginseng.Computed Properties of C15H16O 4-(2-Phenylpropan-2-yl)phenol is a useful reagent for preparing and characterizing aromatic polyphosphonates as high refractive index polymers.

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