Tag: 200-300

HPLC of Formula: 599-64-4《Palladium-Catalyzed Perfluoroalkylative Carbonylation of Unactivated Alkenes: Access to β-Perfluoroalkyl Esters》 was published in 2021. The authors were Zhang, Youcan;Geng, Hui-Qing;Wu, Xiao-Feng, and the article was included in《Angewandte Chemie, International Edition》. The author mentioned the following in the article:

Transition-metal-catalyzed multi-component carbonylation represents an efficient strategy for the preparation of various functionalized carbonyl-containing compounds Herein, authors report a general palladium-catalyzed perfluoroalkylative carbonylation of unactivated alkenes using inexpensive and readily available carbon monoxide as the C1 source and perfluoroalkyl halides as the coupling partner. A wide range of phenols and alcs. were transformed into the corresponding β-perfluoroalkyl esters in high yields with broad functional group tolerance and good chemoselectivity. Addnl., alkyl halides can be utilized as alkoxy source as well to give the desired esters. Moreover, several pharmaceutical and bio-active mols. were also suitable substrates for this one-pot multi-component carbonylation process to give the targeted products in good yields. 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.HPLC of Formula: 599-64-4 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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Rose, Levi D.;Akob, Denise M.;Tuberty, Shea R.;Corsi, Steven R.;DeCicco, Laura A.;Colby, Jeffrey D.;Martin, Derek J. published 《Use of high-throughput screening results to prioritize chemicals for potential adverse biological effects within a West Virginia watershed》 in 2019. The article was appeared in 《Science of the Total Environment》. They have made some progress in their research.Formula: C15H16O The article mentions the following:

Organic chems. from industrial, agricultural, and residential activities can enter surface waters through regulated and unregulated discharges, combined sewer overflows, stormwater runoff, accidental spills, and leaking septic-conveyance systems on a daily basis. The impact of point and nonpoint contaminant sources can result in adverse biol. effects for organisms living in or near surface waters. Assessing the adverse or toxic effects that may result when exposure occurs is complicated by the fact that many commonly used chems. lack toxicity information or water quality standards To address these challenges, an exposure-activity ratio (EAR) screening approach was used to prioritize environmental chem. data in a West Virginia watershed (Wolf Creek). Wolf Creek is a drinking water source and recreation resource with documented water quality impacts from point and nonpoint sources. The EAR screening approach uses high-throughput screening (HTS) data from ToxCast as a method of integrating environmental chem. occurrence and biol. effects data. Using water quality schedule 4433, which targets 69 organic waste compounds typically found in domestic and industrial wastewater, chems. were screened for potential adverse biol. affects at multiple sites in the Wolf Creek watershed. Cumulative EAR mixture values were greatest at Sites 2 and 3, where bisphenol A (BPA) and pentachlorophenol exhibited maximum EAR values of 0.05 and 0.002, resp. Site 2 is downstream of an unconventional oil and gas (UOG) wastewater disposal facility with documented water quality impacts. Low-level organic contaminants were found at all sample sites in Wolf Creek, except Site 10, where Wolf Creek enters the New River. The application of an EAR screening approach allowed our study to extend beyond traditional environmental monitoring methods to identify multiple sites and chems. that warrant further investigation. 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.Formula: C15H16O 4-(2-Phenylpropan-2-yl)phenol is a useful reagent for preparing and characterizing aromatic polyphosphonates as high refractive index polymers.

Reference:
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Taritla, Sidhartha;Kumari, Madhuree;Kamat, Siya;Bhat, Sarita G.;Jayabaskaran, C. published 《Optimization of physicochemical parameters for production of cytotoxic secondary metabolites and apoptosis induction activities in the culture extract of a marine algal-derived endophytic fungus Aspergillus sp.》. The research results were published in《Frontiers in Pharmacology》 in 2021.Recommanded Product: 2-Hexyl-1-decanol The article conveys some information:

The endophytic fungal community in the marine ecosystem has been demonstrated to be relevant source of novel and pharmacol. active secondary metabolites. The current study focused on the evaluation of cytotoxic and apoptosis induction potential in the culture extracts of endophytic fungi associated with Sargassum muticum, a marine brown alga. The cytotoxicity of the four marine endophytes, Aspergillus sp., Nigrospora sphaerica, Talaromyces purpureogenus, and Talaromyces stipitatus, was evaluated by the MTT assay on HeLa cells. Further, several physicochem. parameters, including growth curve, culture media, and organic solvents, were optimized for enhanced cytotoxic activity of the selected extract The Aspergillus sp. Et acetate extract (ASE) showed maximum cytotoxicity on multiple cancer cell lines. Chem. investigation of the metabolites by gas chromatog.-mass spectroscopy (GC-MS) showed the presence of several compounds, including quinoline, indole, 2,4-bis(1,1-dimethylethyl) phenol, and hexadecenoic acid, known to be cytotoxic in ASE. The ASE was then tested for cytotoxicity in vitro on a panel of six human cancer cell lines, namely, HeLa (cervical adenocarcinoma), MCF-7 (breast adenocarcinoma), Hep G2 (hepatocellular carcinoma), A-549 (lung carcinoma), A-431 (skin/epidermis carcinoma), and LN-229 (glioblastoma). HeLa cells were most vulnerable to ASE treatment with an IC₅₀ value of 24 ± 2 μg/mL. The mechanism of cytotoxicity exhibited by the ASE was further investigated on Hela cells. The results showed that the ASE was capable of inducing apoptosis in HeLa cells through production of reactive oxygen species, depolarization of mitochondrial membrane, and activation of the caspase-3 pathway, which shows a possible activation of the intrinsic apoptosis pathway. It also arrested the HeLa cells at the G2/M phase of the cell cycle, eventually leading to apoptosis. Through this study, we add to the knowledge about the marine algae associated with fungal endophytes and report its potential for purifying specific compounds responsible for cytotoxicity.2-Hexyl-1-decanol (cas: 2425-77-6) were involved in the experimental procedure.

2-Hexyl-1-decanol(cas: 2425-77-6) is a fatty acid that is found in the essential oils of plants and has been shown to have fungicidal properties.Recommanded Product: 2-Hexyl-1-decanol It has also been shown to inhibit the growth of Candida glabrata when used as a cationic surfactant.

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Name: 2-Hexyl-1-decanol《Preparation of a Coal-Based MoS₂/SiO₂/GO Composite Catalyst and Its Performance in the Photocatalytic Degradation of Wastewater and Hydrogen Production》 was published in 2022. The authors were Sun, Jinyan;Maimaiti, Halidan;Zhai, Peishuai;Zhang, Haizheng;Feng, Lirong;Bao, Jianzhao;Zhao, Xuwei, and the article was included in《Langmuir》. The author mentioned the following in the article:

Photocatalytic degradation of wastewater and the simultaneous production of hydrogen (H₂) is a green and efficient method to solve energy and environmental problems. In this paper, coal-based SiO₂/GO with a stable structure was prepared by a modified Hummers oxidation method, and then, a lotus-shaped composite photocatalyst, MoS₂/SiO₂/GO, was prepared by in situ loading of flower cluster MoS₂ from sodium molybdate reduction onto SiO₂/GO. Its photocatalytic degradation of wastewater and H₂ production properties were investigated while characterizing the material structure. The results show that SiO₂/GO as a carrier not only ensures adequate dispersion of MoS₂ but also enhances the visible-light response of the composite catalyst. In addition, it can also hinder the recombination of photogenerated electrons and holes in MoS₂ and act as an electron transport channel in composite catalysts. MoS₂/SiO₂/GO exhibits much higher photocatalytic degradation of wastewater and H₂ production capacity than MoS₂: after 180 min of reaction, the CODcr removal of wastewater increased from 45.6% for MoS₂ to 84.2% for MoS₂/SiO₂/GO and the H₂ yield reached 233.4μmol. The goal of degrading wastewater while producing H₂ more economically has been tentatively achieved, although not to the extent required for industrialization. The experimental procedure involved many compounds, such as 2-Hexyl-1-decanol (cas: 2425-77-6) .

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.Name: 2-Hexyl-1-decanol This fatty acid also has transport properties and can form hydrogen bonds with other molecules.

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Today I want to share an article with you. The article is 《Evaluation of protein degradation and flavor compounds during the processing of Xuan′en ham》,you can find this article in 《Journal of Food Science》. The following contents are mentioned:

Protein degradation occurs during the processing of dry-cured ham, which has important influences on the flavor and quality of products. The aim of this work was to study the degradation kinetics of myofibrillar proteins (MPs) and sarcoplasmic proteins (SPs) extracted from the biceps femoris muscle during the processing of Xuan′en ham. A relationship between protein degradation and the flavor formation was found. During the processing of Xuan ′en ham, MPs and SPs were mainly degraded in the salting stage and incipient fermentation Accompanied by protein degradation, the content of carbonyl group in SPs increased gradually, but in MPs, it first increased and then decreased. Interconversion between sulfhydryl and disulfide bonds was investigated during this processing. Oxidation, degradation, and thermal effects significantly affected the surface hydrophobicity of proteins. More than one hundred volatile compounds have been identified at each stage of ham preparation Among them, organic acids were the predominant group, followed by hydrocarbons, aldehydes, alcs., ketones, and esters. To complete the study, the researchers used 2-Hexyl-1-decanol (cas: 2425-77-6) .

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.Electric Literature of C16H34O This fatty acid also has transport properties and can form hydrogen bonds with other molecules.

Reference:
Alcohol – Wikipedia,
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Kim, Youngnam;Hong, Seongjin;Lee, Junghyun;Yoon, Seo Joon;An, Yoonyoung;Kim, Min-Seob;Jeong, Hee-Dong;Khim, Jong Seong published 《Spatial distribution and source identification of traditional and emerging persistent toxic substances in the offshore sediment of South Korea》 in 2021. The article was appeared in 《Science of the Total Environment》. They have made some progress in their research.Quality Control of 4-tert-Octylphenol The article mentions the following:

While the coastal pollution of persistent toxic substances has been widely documented, information on offshore environments remains limited. Here, we investigated the spatial distribution and sources of PTSs in the offshore sediments (n = 34) of South Korea. Sediment samples collected from the Yellow Sea (n = 18), the South Sea (n = 10), and the East Sea (n = 6), in 2017-18 were analyzed for a total of 71 PTSs. Low-chlorinated PCBs (tri- and tetra Cl-CBs) were predominant (mean: 77%), primarily indicating atm. inputs. PAHs widely accumulated in the three seas with low to moderate level (22-250 ng g-1 OC), and dominated by high mol. weight PAHs (4-6 rings). PMF anal. revealed coast-specific PAHs sources; i.e., originated from mainly coke production (77%) in the Yellow Sea, vehicle emissions (68%) in the South Sea, and fossil fuel combustion (49%) in the East Sea. SOs showed significant contamination than other PTSs, with elevated concentrations in the Yellow Sea (mean: 350 ng g^-1 OC). APs showed a similar regional distribution to SOs, but concentrations were much lower (mean: 17 ng g^-1 OC). SOs and APs seemed to be introduced from rivers and estuaries on the west coast of Korea, where industrial and municipal activities are concentrated, then might be transported to offshore through tide or currents. Overall, the novel data presented for various PTSs in offshore Korean sediments warrant the necessity of a long-term monitoring effort and urgent management practice to protect marine ecosystem.4-tert-Octylphenol (cas: 140-66-9) were involved in the experimental procedure.

4-tert-Octylphenol(cas: 140-66-9) is a common environmental pollutant showing weak estrogenic effects.Quality Control of 4-tert-Octylphenol It has been shown to cause harm to vertebrate male reproductive systems.

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Alcohol – Wikipedia,
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Related Products of 599-64-4《Microscopic mechanism about the selective adsorption of Cr(VI) from salt solution on O-rich and N-rich biochars》 was published in 2021. The authors were Zhao, Nan;Zhao, Chuanfang;Tsang, Daniel C. W.;Liu, Kunyuan;Zhu, Ling;Zhang, Weihua;Zhang, Jing;Tang, Yetao;Qiu, Rongliang, and the article was included in《Journal of Hazardous Materials》. The author mentioned the following in the article:

The adsorption of Cr(VI) on biochars can be suppressed by coexisting anions, but the roles of O-containing functional groups and in particular N-containing functional groups are unclear. In this study, we combined spectroscopic and mol. simulation approaches to investigate the selective adsorption of Cr(VI) on the O-rich (PB, UB1) and N-rich (UB3, UB5) biochars under strong competition of anions. The elemental anal. and pyrolysis-gas chromatog./mass spectrometry indicated that the structures of PB and UB1 were similar, and so were the UB3 and UB5. Quantification of functional groups showed that for UB1, 75.3% of Cr(VI) removal was attributed to O-containing groups, while 53.3-72.7% of that was mediated by N-containing groups in UB3 and UB5. X-ray photoelectron spectra and d. functional theory calculations confirmed that for O-rich biochars, surface complexation and strong H-bonds between carboxyl/hydroxyl and HCrO-4 improved Cr(VI) removal in the presence of anions, while for N-rich biochars, Cr(VI) adsorption was depressed by coexisting anions in the order of Cl->NO-3 >SO2-4 because of the weaker H-bond between protonated amino groups and HCrO-4. This study presents a novel approach for quant., mol.-level evaluation of the roles of biochar functional groups in the Cr(VI) removal from complex environmental systems. 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.Related Products of 599-64-4 4-(2-Phenylpropan-2-yl)phenol is a useful reagent for preparing and characterizing aromatic polyphosphonates as high refractive index polymers.

Reference:
Alcohol – Wikipedia,
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Cheng, Jun;Liu, Qun;Zhang, Yucang;Wang, Zhifen;Gao, Mengmeng;Li, Siyuan published 《Preparation and properties of antibacterial and antioxidant mango peel extract/polyvinyl alcohol composite films》. The research results were published in《Journal of Food Processing and Preservation》 in 2022.Application of 2425-77-6 The article conveys some information:

In order to improve the high-value utilization of mango peel and the performance of the polyvinyl alc. (PVA) films, mango peel extract (MPE) and PVA were blended to prepare multifunctional composite films in this paper. First, gel permeation chromatog. was used to determine the mol. weight distribution of MPE, and the major components of MPE were identified by gas chromatog.-mass spectrometry. Subsequently, different ratios of MPE/PVA composite films were prepared As indicated by the results, the optical and mech. properties of pure PVA film are significantly affected by the addition of MPE. With addition of 2.4 wt% MPE, the ultimate elongation of this films is significantly increased by 160.24%. The addition of MPE also enhances the water resistibility and thermal stability of the films and significantly improves its antibacterial and antioxidative properties. These results indicate that the prepared composite films is expected to be widely applied in food packaging. Novelty impact statement : The mango peel extract (MPE) was prepared, its mol. weight and composition were characterized, and then the MPE/PVA composite films were further prepared The MPE improved the elongation at break and water resistance of composite films. The MPE gave excellent UV resistance, antibacterial and antioxidant properties to the composite films.2-Hexyl-1-decanol (cas: 2425-77-6) were involved in the experimental procedure.

2-Hexyl-1-decanol(cas: 2425-77-6) is a fatty acid that is found in the essential oils of plants and has been shown to have fungicidal properties.Application of 2425-77-6 It has also been shown to inhibit the growth of Candida glabrata when used as a cationic surfactant.

Reference:
Alcohol – Wikipedia,
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Xiang, Ying;Wu, Huihui;Li, Lu;Ren, Meng;Qie, Hantong;Lin, Aijun published 《A review of distribution and risk of pharmaceuticals and personal care products in the aquatic environment in China》. The research results were published in《Ecotoxicology and Environmental Safety》 in 2021.HPLC of Formula: 140-66-9 The article conveys some information:

A review. Due to the extensive use and pseudo-persistence of pharmaceuticals and personal care products (PPCPs), they are frequently detected in the aqueous environment, which has attracted global attention. In this paper, accumulation data of 81 PPCPs in surface water or sediment in China were reported. In addition, 20 kinds of PPCPs with high frequency were selected and their ecol. risk assessment was conducted by risk quotient (RQs). The results indicated that the concentration detected in surface water and sediment ranged from ng/L (ng/kg) to μg/L ( μg/kg) in China, which was similar to concentrations reported globally. However, contamination by certain PPCPs, such as caffeine, oxytetracycline, and erythromycin, was relatively high with a maximum concentration of more than 2000 ng/L in surface water. RQs revealed that 14 kinds of PPCPs pose no significant risk or low risk to aquatic organisms, while 6 kinds of PPCPs pose a high risk. Addnl., the pollution characteristics of PPCPs in each watershed are different. The Haihe River watershed and the central and lower Yangtze River were the regions of high concern for erythromycin. Triclosan has potential risks in the Pearl River watershed. This study determined the occurrence and risk of PPCPs in China in the past decade, providing a scientific basis for PPCPs pollution control and risk prevention. 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).HPLC of Formula: 140-66-9

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Peng, Pai;Guo, Shenghui;Li, Linhu;Jin, Hui;Ge, Zhiwei;Guo, Liejin published 《Supercritical water gasification mechanism of polymer-containing oily sludge》 in 2021. The article was appeared in 《International Journal of Hydrogen Energy》. They have made some progress in their research.SDS of cas: 140-66-9 The article mentions the following:

In the offshore petroleum industry, polymer-containing oily sludge (PCOS) hinders oil extraction and causes tremendous hazards to the marine ecol. environment. In this paper, an effective pretreatment method is proposed to break the adhesive structure of PCOS, and the experiments of supercritical water gasification are carried out under the influencing factors including residence time (5-30 min) and temperature (400-750 °C) in batch reactors. The increase of time and temperature all show great promoting effects on gas production Polycyclic aromatic hydrocarbons, including naphthalene and phenanthrene, are considered as the main obstacles for a complete gasification. Carbon gasification efficiency (CE) reaches maximum of 95.82% at 750 °C, 23 MPa for 30 min, while naphthalene makes up 70% of the organic compounds in residual liquid products. The highest hydrogen yield of 19.79 (mol H₂/kg of PCOS) is observed in 750 °C for 25 min. A simplified reaction pathway is presented to describe the gaseous products (H₂, CO, CO₂, CH₄). Two intermediates are defined for describing the reaction process bases on the exhaustive study on organic matters in residual liquid products. The results show that the calculated data and the exptl. data have a high degree of fit and tar formation reaction is finished within 10 min. And 4-tert-Octylphenol (cas: 140-66-9) was used in the research process.

4-tert-Octylphenol(cas: 140-66-9) is a common environmental pollutant showing weak estrogenic effects.SDS of cas: 140-66-9 It has been shown to cause harm to vertebrate male reproductive systems.

Reference:
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts