Tag: 200-300

C-O band structure modified broad spectral response carbon nitride with enhanced electron density in photocatalytic peroxymonosulfate activation for bisphenol pollutants removal was written by Tong, Chun;Jing, Liquan;Xie, Meng;He, Minqiang;Liu, Ying;Yuan, Junjie;Song, Yanhua;Xu, Yuanguo. And the article was included in Journal of Hazardous Materials in 2022.Computed Properties of C13H12O2 The following contents are mentioned in the article:

Here, a simple one-step calcination method uses glycolic acid (GA) and urea to synthesize C-O band structure modified carbon nitride with broad spectral response, which is used to construct a peroxymonosulfate/visible light (PMS/vis) system. The solid-state ¹³C NMR proved that C-O band structure was successfully introduced into the carbon nitride. D. functional theory (DFT) calculation show that the introduction of C-O band structure shortens the band gap of 0.05 g GA modified CN (0.05 GA-CN). Besides, UPS (UPS) further illustrate that the 0.05 GA-CN has a higher charge d. and promotes the degradation of pollutants. In PMS/vis system, 0.05 GA-CN can completely degrade bisphenol A (BPA) within 36 min. In addition, 0.05 GA-CN can also degrade bisphenol E (BPE) and bisphenol F (BPF). The cyclic voltammetry (CV) curve show that the introduction of C-O band structure enhances the activation ability of PMS. At the same time, 0.05 GA-CN/PMS has enhanced the activity of degrading BPA under blue light (450-462 nm), green light (510-520 nm) and red light (610-625 nm). This research provides a new method to synthesize carbon nitride with enhanced electron d. for degradation of bisphenol pollutants in PMS/vis system. This study involved multiple reactions and reactants, such as 4,4′-Methylenediphenol (cas: 620-92-8Computed Properties of C13H12O2).

4,4′-Methylenediphenol (cas: 620-92-8) belongs to alcohols. Because alcohols are easily synthesized and easily transformed into other compounds, they serve as important intermediates in organic synthesis. Converting an alcohol to an alkene requires removal of the hydroxyl group and a hydrogen atom on the neighbouring carbon atom. Dehydrations are most commonly carried out by warming the alcohol in the presence of a strong dehydrating acid, such as concentrated sulfuric acid.Computed Properties of C13H12O2

Referemce:
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts

Transition metal complexes with thiosemicarbazide-based ligands. Part 61. Comparative analysis of structural properties of the pyridoxal thiosemicarbazone ligands. Crystal structure of PLTSC·HCl·2H₂O and its complex [Fe(PLTSC)Cl₂(H₂O)]Cl was written by Ivkovic, Sonja A.;Vojinovic-Jesic, Ljiljana S.;Leovac, Vukadin M.;Rodic, Marko V.;Novakovic, Sladjana B.;Bogdanovic, Goran A.. And the article was included in Structural Chemistry in 2015.Application In Synthesis of 3-Hydroxy-5-(hydroxymethyl)-2-methylisonicotinaldehyde hydrochloride The following contents are mentioned in the article:

A novel pyridoxal thiosemicarbazone (PLTSC) compound, exhibiting ligating properties, PLTSC·HCl·2H₂O (1) was synthesized and characterized by x-ray anal. The PLTSC ligand 1 displays significantly different conformation in comparison to the five previously reported compounds of this type. The structural properties of six PLTSC ligands in different conformations were compared to establish the structural differences and understand the factors that facilitate particular conformations. The anal. indicated great structural flexibility of the PLTSC ligands. The PLTSC ligand 1 is essentially a planar mol. with the root-mean-square deviation of all non-H atoms equal to 0.06 Å. Consequently, the mols. of 1 form a layered three-dimensional structure which is stabilized by a variety of H bonds: O-H···O, O-H···N, O-H···Cl, O-H···S, N-H···O, N-H···N, N-H···Cl, N-H···S. The crystal structure of the Fe(III) complex with the ligand 1 [Fe(PLTSC)Cl₂(H₂O)]Cl was resolved by single-crystal x-ray anal. and structural properties of this octahedral complex are discussed and compared to those of uncoordinated PLTSC ligand. This study involved multiple reactions and reactants, such as 3-Hydroxy-5-(hydroxymethyl)-2-methylisonicotinaldehyde hydrochloride (cas: 65-22-5Application In Synthesis of 3-Hydroxy-5-(hydroxymethyl)-2-methylisonicotinaldehyde hydrochloride).

3-Hydroxy-5-(hydroxymethyl)-2-methylisonicotinaldehyde hydrochloride (cas: 65-22-5) belongs to alcohols. Similar to water, an alcohol can be pictured as having an sp3 hybridized tetrahedral oxygen atom with nonbonding pairs of electrons occupying two of the four sp3 hybrid orbitals. Alcohols may be oxidized to give ketones, aldehydes, and carboxylic acids. These functional groups are useful for further reactions. Oxidation of organic compounds generally increases the number of bonds from carbon to oxygen (or another electronegative element, such as a halogen), and it may decrease the number of bonds to hydrogen.Application In Synthesis of 3-Hydroxy-5-(hydroxymethyl)-2-methylisonicotinaldehyde hydrochloride

Referemce:
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts

Synthesis of haptens and gold-based immunochromatographic paper sensor for vitamin B₆ in energy drinks and dietary supplements was written by Zeng, Lu;Xu, Xinxin;Song, Shanshan;Xu, Liguang;Liu, Liqiang;Xiao, Jing;Xu, Chuanlai;Kuang, Hua. And the article was included in Nano Research in 2022.Synthetic Route of C8H10ClNO3 The following contents are mentioned in the article:

We designed and synthesized novel haptens to produce monoclonal antibodies (mAb) against vitamin B₆ (VB₆). A group-specific mAb (2F9) that recognized pyridoxine (PN), pyridoxamine (PM), and pyridoxal (PL) was prepared using a homologous strategy with 50% maximal inhibitory concentration (IC₅₀) values of 106.60, 250.57, and 400.11 ng/mL, resp. Based on this, a gold nanoparticles (AuNPs)-based immunochromatog. strip (ICS) test was established for the detection of VB₆ in energy drinks and B-vitamin complex tablets. The developed ICS test results could be semi-quant. evaluated by the naked eye within 10 min, and displayed the visual limit of detection (vLOD) values of 250, 500, and 1,000 ng/mL for PN, PM, and PL, resp. For quant. anal., the results obtained by strip reader, with calculated LOD values for PN, PM, and PL were 14.10, 55.58, and 56.25 ng/mL, resp. Com. energy drinks and B-vitamin complex tablet samples were detected by the strips and the results were confirmed with high-performance liquid chromatog. Overall, the developed AuNPs-based immunochromatog. sensor was suitable and promising for the group-specific recognition and rapid detection of VB₆ in fortified foods and dietary supplements. This study involved multiple reactions and reactants, such as 3-Hydroxy-5-(hydroxymethyl)-2-methylisonicotinaldehyde hydrochloride (cas: 65-22-5Synthetic Route of C8H10ClNO3).

3-Hydroxy-5-(hydroxymethyl)-2-methylisonicotinaldehyde hydrochloride (cas: 65-22-5) belongs to alcohols. A strong base can deprotonate an alcohol to yield an alkoxide ion (R―O−). For example, sodamide (NaNH2), a very strong base, abstracts the hydrogen atom of an alcohol. Grignard and organolithium reagents are powerful tools for organic synthesis, and the most common products of their reactions are alcohols.Synthetic Route of C8H10ClNO3

Referemce:
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts

Assessing microplastic ingestion and occurrence of bisphenols and phthalates in bivalves, fish and holothurians from a Mediterranean marine protected area was written by Rios-Fuster, Beatriz;Alomar, Carme;Paniagua Gonzalez, Gema;Garcinuno Martinez, Rosa Maria;Soliz Rojas, Dulce Lucy;Fernandez Hernando, Pilar;Deudero, Salud. And the article was included in Environmental Research in 2022.Application of 620-92-8 The following contents are mentioned in the article:

Microplastic (MP) ingestion, along with accumulated plasticizers such as bisphenol A (BPA), bisphenol F (BPF), and bisphenol S (BPS), and phthalates represented by di-Et phthalate (DEP), di-Bu phthalate (DBP) and bis (2-ethylhexyl) phthalate (DEHP), were quantified in bivalves, fish, and holothurians collected from a coastal pristine area at the western Mediterranean Sea. MP ingestion in sediment-feeders holothurians (mean value 12.67 ± 7.31 MPs/individual) was statistically higher than ingestion in bivalves and fish (mean 4.83 ± 5.35 and 3 ± 4.44 MPs/individual, resp.). The main ingested polymers were polyethylene, polypropylene, and polystyrene. The levels of BPS, BPF, and DEHP were highest in bivalves soft tissue; BPA and DBP had the highest levels in the holothurians muscle. In addition, the levels of all plasticizers assessed were lowest in fish muscle; only BPA levels in fish were higher than in bivalves, with intermediate values between those of bivalves and holothurians. This provides data on exposure to MPs and plasticizers of different species inhabiting Cabrera Marine Protected Area (MPA) and highlights the differences in MP ingestion and levels of plasticizers between species with different ecol. characteristics and feeding strategies. This study involved multiple reactions and reactants, such as 4,4′-Methylenediphenol (cas: 620-92-8Application of 620-92-8).

4,4′-Methylenediphenol (cas: 620-92-8) belongs to alcohols. The oxygen atom of the strongly polarized O―H bond of an alcohol pulls electron density away from the hydrogen atom. This polarized hydrogen, which bears a partial positive charge, can form a hydrogen bond with a pair of nonbonding electrons on another oxygen atom. A multistep synthesis may use Grignard-like reactions to form an alcohol with the desired carbon structure, followed by reactions to convert the hydroxyl group of the alcohol to the desired functionality.Application of 620-92-8

Referemce:
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts

Identification and primary application of hybridomas cell secreting monoclonal antibodies against mink (Neovison vison) interferon-gamma was written by Zhang, Hailing;Zhang, Shasha;Fan, Sining;Zhang, Lei;Hu, Bo;Bai, Xue;Zhang, Dongliang;Lu, Rongguang;Zhao, Jianjun;Lian, Shizhen;Gao, Bing;Yan, Xijun;Lu, Shiying;Zhu, Yanzhu. And the article was included in Cytokine+ in 2022.Recommanded Product: (2R,3R,4S,5R,6S)-2-(Hydroxymethyl)-6-(isopropylthio)tetrahydro-2H-pyran-3,4,5-triol The following contents are mentioned in the article:

Due to their susceptibility to several human viruses, the mink has been proposed as potential animal models for the study of human viral infections. However, there are no specific monoclonal antibody (mAbs) currently available for the detection of mink-specific interferon-gamma (miIFN-γ). The BALB/c mice were immunized i.p. with purified recombinant miIFN-γ protein. The splenocytes were obtained and fused with murine myeloma cells. Five of 24 hybridoma clones were obtained to produce mAbs steadily with the strongest affinity to recombinant miIFN-γ protein. The isotype of the 31A, 31B and 31G were lgG 2b. The isotype of 44 and 46 were lgG 2a and 1. All five mAbs were κ light chains. Western blotting and indirect ELISA method showed that 5 mAbs were pos. to miIFN-γ. Immunofluorescence showed that 2 mAbs (44 and 46) had a pos. reaction to miIFN-γ. The hybridoma clone 46 had the highest sensitivity for the detection of miIFN-γ. Most importantly, our primary sandwich ELISA system (mAbs 46 and polyclonal antiserum) detected endogenous IFN-γ in mink lymphocytes infected with canine distemper virus (CDV). We have thus developed a novel mAbs could recognize miIFN-γ, and have demonstrated the first ELISA-based measurement of IFN-γ in lymphocyte of the mink. This study involved multiple reactions and reactants, such as (2R,3R,4S,5R,6S)-2-(Hydroxymethyl)-6-(isopropylthio)tetrahydro-2H-pyran-3,4,5-triol (cas: 367-93-1Recommanded Product: (2R,3R,4S,5R,6S)-2-(Hydroxymethyl)-6-(isopropylthio)tetrahydro-2H-pyran-3,4,5-triol).

(2R,3R,4S,5R,6S)-2-(Hydroxymethyl)-6-(isopropylthio)tetrahydro-2H-pyran-3,4,5-triol (cas: 367-93-1) belongs to alcohols. Under appropriate conditions, inorganic acids also react with alcohols to form esters. To form these esters, a wide variety of specialized reagents and conditions can be used. Alcohols may be oxidized to give ketones, aldehydes, and carboxylic acids. These functional groups are useful for further reactions. Oxidation of organic compounds generally increases the number of bonds from carbon to oxygen (or another electronegative element, such as a halogen), and it may decrease the number of bonds to hydrogen.Recommanded Product: (2R,3R,4S,5R,6S)-2-(Hydroxymethyl)-6-(isopropylthio)tetrahydro-2H-pyran-3,4,5-triol

Referemce:
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts

The role of the N-terminal amphipathic helix in bacterial YidC: Insights from functional studies, the crystal structure and molecular dynamics simulations was written by Nass, Karol J.;Ilie, Ioana M.;Saller, Manfred J.;Driessen, Arnold J. M.;Caflisch, Amedeo;Kammerer, Richard A.;Li, Xiaodan. And the article was included in Biochimica et Biophysica Acta, Biomembranes in 2022.COA of Formula: C9H18O5S The following contents are mentioned in the article:

The evolutionary conserved YidC is a unique dual-function membrane protein that adopts insertase and chaperone conformations. The N-terminal helix of Escherichia coli YidC functions as an uncleaved signal sequence and is important for membrane insertion and interaction with the Sec translocon. Here, we report the first crystal structure of Thermotoga maritima YidC (TmYidC) including the N-terminal amphipathic helix (N-AH) (PDB ID: 6Y86). Mol. dynamics simulations show that N-AH lies on the periplasmic side of the membrane bilayer forming an angle of about 15° with the membrane surface. Our functional studies suggest a role of N-AH for the species-specific interaction with the Sec translocon. The reconstitution data and the superimposition of TmYidC with known YidC structures suggest an active insertase conformation for YidC. Mol. dynamics (MD) simulations of TmYidC provide evidence that N-AH acts as a membrane recognition helix for the YidC insertase and highlight the flexibility of the C1 region underlining its ability to switch between insertase and chaperone conformations. A structure-based model is proposed to rationalize how YidC performs the insertase and chaperone functions by re-positioning of N-AH and the other structural elements. This study involved multiple reactions and reactants, such as (2R,3R,4S,5R,6S)-2-(Hydroxymethyl)-6-(isopropylthio)tetrahydro-2H-pyran-3,4,5-triol (cas: 367-93-1COA of Formula: C9H18O5S).

(2R,3R,4S,5R,6S)-2-(Hydroxymethyl)-6-(isopropylthio)tetrahydro-2H-pyran-3,4,5-triol (cas: 367-93-1) belongs to alcohols. A strong base can deprotonate an alcohol to yield an alkoxide ion (R―O−). For example, sodamide (NaNH2), a very strong base, abstracts the hydrogen atom of an alcohol. Grignard and organolithium reagents are powerful tools for organic synthesis, and the most common products of their reactions are alcohols.COA of Formula: C9H18O5S

Referemce:
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts

Elevated levels of perfluoroalkyl substances in breast cancer patients within the Greater Manila Area was written by Velarde, Michael C.;Chan, Alison Faye O.;Sajo, Ma Easter Joy V.;Zakharevich, Igor;Melamed, Jonathan;Uy, Gemma Leonora B.;Teves, Joji Marie Y.;Corachea, Allen Joy M.;Valparaiso, Apple P.;Macalindong, Shiela S.;Cabaluna, Nelson D.;Dofitas, Rodney B.;Giudice, Linda C.;Gerona, Roy R.. And the article was included in Chemosphere in 2022.Electric Literature of C13H12O2 The following contents are mentioned in the article:

Several studies have reported exposure of humans to various endocrine disrupting chems. (EDCs) worldwide. However, there is a lack of data regarding EDC exposures in humans living in Southeast Asian countries, such as the Philippines. Hence, this study measured levels of 41 EDCs in women residing in the Greater Manila Area, home to the second largest city in Southeast Asia. Urine samples from women with vs. without breast cancer were analyzed for 11 phthalate metabolites, 8 environmental phenols, and 10 bisphenols, while serum samples were analyzed for 12 perfluoroalkyl substances (PFAS). Out of the four groups of EDCs analyzed, PFAS were significantly associated with breast cancer (adjusted OR = 13.63, 95% CI: 3.24-94.88 p-trend = 0.001 for PFDoA; adjusted OR = 9.26, 95% CI 2.54-45.10, p-trend = 0.002 for PFDA; and adjusted OR = 2.66, 95% CI: 0.95-7.66, p-trend = 0.004 for PFHxA). Long-chain PFAS levels were pos. correlated with age and were significantly higher in women from Region IV-A, a heavily industrialized region, than from the National Capital Region. Overall, this study showed baseline information regarding the level of EDCs in Filipinas, providing a glimpse of EDC exposure in women living in a megalopolis city in Southeast Asia. This study involved multiple reactions and reactants, such as 4,4′-Methylenediphenol (cas: 620-92-8Electric Literature of C13H12O2).

4,4′-Methylenediphenol (cas: 620-92-8) belongs to alcohols. Alcohols are among the most common organic compounds. They are used as sweeteners and in making perfumes, are valuable intermediates in the synthesis of other compounds, and are among the most abundantly produced organic chemicals in industry. Alcohols may be oxidized to give ketones, aldehydes, and carboxylic acids. These functional groups are useful for further reactions. Oxidation of organic compounds generally increases the number of bonds from carbon to oxygen (or another electronegative element, such as a halogen), and it may decrease the number of bonds to hydrogen.Electric Literature of C13H12O2

Referemce:
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts

Water-soluble pyridine-based colorimetric chemosensor for naked eye detection of silver ions: Design, synthesis, spectral and theoretical investigation was written by Annaraj, B.;Neelakantan, M. A.. And the article was included in Analytical Methods in 2014.SDS of cas: 65-22-5 The following contents are mentioned in the article:

A water soluble pyridine containing a Schiff base as chemosensor was designed and then synthesized. The chemosensor (L) was synthesized by reacting pyridoxal and 2-aminoethanol and then comprehensively characterized using elemental anal., spectroscopic methods (IR, UV-visible, NMR (¹H-NMR and ¹³C-NMR) spectroscopy), electrospray ionization mass spectroscopy, and single crystal X-ray crystallog. The designed compound showed excellent specificity and sensitivity (detection limit = 4.18 × 10^-6 M) towards Ag⁺ ions in preference to other interfering cations (Ca²⁺, Co²⁺, Cu²⁺, Fe²⁺, Fe³⁺, Hg²⁺, VO²⁺, K⁺, Li⁺, Mn²⁺, Na⁺, Ni²⁺, Pb²⁺ and Zn²⁺) in aqueous solution The (L) showed a selective chromogenic behavior towards Ag⁺ ions by changing the color of the solution from light yellow to red, a change which can be detected with the naked eye. A simple and cost effective test kit was prepared for the detection of silver ion in water samples. Time-dependent d. functional theory calculations were carried out to help understand the sensing mechanism. This study involved multiple reactions and reactants, such as 3-Hydroxy-5-(hydroxymethyl)-2-methylisonicotinaldehyde hydrochloride (cas: 65-22-5SDS of cas: 65-22-5).

3-Hydroxy-5-(hydroxymethyl)-2-methylisonicotinaldehyde hydrochloride (cas: 65-22-5) belongs to alcohols. Under appropriate conditions, inorganic acids also react with alcohols to form esters. To form these esters, a wide variety of specialized reagents and conditions can be used. Converting an alcohol to an alkene requires removal of the hydroxyl group and a hydrogen atom on the neighbouring carbon atom. Dehydrations are most commonly carried out by warming the alcohol in the presence of a strong dehydrating acid, such as concentrated sulfuric acid.SDS of cas: 65-22-5

Referemce:
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts

USAEME-GC/MS Method for Easy and Sensitive Determination of Nine Bisphenol Analogs in Water and Wastewater was written by Kiejza, Dariusz;Kotowska, Urszula;Polinska, Weronika;Karpinska, Joanna. And the article was included in Molecules in 2022.Electric Literature of C13H12O2 The following contents are mentioned in the article:

A new, simple and sensitive method for isolating nine compounds from the bisphenol group (analogs: A, B, C, E, F, G, Cl₂, Z, AP) based on one-step liquid-liquid microextraction with in situ acylation followed by gas chromatog.-mass spectrometry was developed and validated using influent and effluent wastewaters. The chemometric approach based on the Taguchi method was used to optimize the main conditions of simultaneous extraction and derivatization. The recoveries of the proposed procedure ranged from 85 to 122%, and the repeatability expressed by the coefficient of variation did not exceed 8%. The method’s limits of detection were in the range of 0.4-64 ng/L, and the method’s limits of quantification ranged from 1.3 to 194 ng/L. The developed method was used to determine the presence of the tested compounds in wastewater from a municipal wastewater treatment plant located in northeastern Poland. From this sample, eight analytes were detected. Concentrations of bisphenol A of 400 ng/L in influent and 100 ng/L in effluent were recorded, whereas other bisphenols reached 67 and 50 ng/L for influent and effluent, resp. The removal efficiency of bisphenol analogs in the tested wastewater treatment plant ranged from 7 to approx. 88%. This study involved multiple reactions and reactants, such as 4,4′-Methylenediphenol (cas: 620-92-8Electric Literature of C13H12O2).

4,4′-Methylenediphenol (cas: 620-92-8) belongs to alcohols. Similar to water, an alcohol can be pictured as having an sp3 hybridized tetrahedral oxygen atom with nonbonding pairs of electrons occupying two of the four sp3 hybrid orbitals. Tertiary alcohols cannot be oxidized at all without breaking carbon-carbon bonds, whereas primary alcohols can be oxidized to aldehydes or further oxidized to carboxylic acids.Electric Literature of C13H12O2

Referemce:
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts

Selective Removal of Phenolic Compounds by Peroxydisulfate Activation: Inherent Role of Hydrophobicity and Interface ROS was written by Liu, Xinru;Liu, Ying;Qin, Hehe;Ye, Ziwei;Wei, Xiaojie;Miao, Wei;Yang, Dianhai;Mao, Shun. And the article was included in Environmental Science & Technology in 2022.Application of 620-92-8 The following contents are mentioned in the article:

Selective removal of organic pollutants by advanced oxidation methods has been receiving increasing attention for environmental remediation. In this study, a novel catalyst, which can selectively oxidize phenolic compounds (PCs) based on their hydrophobicity, composed of metal-organic-framework-derived Fe/Fe₃O₄ and three-dimensional reduced graphene oxide (rGOF) is designed for peroxydisulfate (PDS) activation. This heterogeneous PDS activation system can completely degrade hydrophobic PCs within 30 min. By investigating the hydrophobic properties of eight representative PCs, a pos. correlation between the hydrophobicity of PC and the reaction kinetics is reported for the first time. The selective removal stems from the strong interaction between highly hydrophobic PCs and the catalyst. Moreover, the mechanism investigation shows that the degradation reaction is triggered by interface reactive oxygen species (ROS). Our study reveals that the selective degradation of organic pollutants by PDS activation depends on the hydrophilic and hydrophobic properties of the pollutant and catalyst. The reported results provide new insights into a highly selective and efficient PDS activation system for organic pollutant removal. This study involved multiple reactions and reactants, such as 4,4′-Methylenediphenol (cas: 620-92-8Application of 620-92-8).

4,4′-Methylenediphenol (cas: 620-92-8) belongs to alcohols. Under appropriate conditions, inorganic acids also react with alcohols to form esters. To form these esters, a wide variety of specialized reagents and conditions can be used. The most common reactions of alcohols can be classified as oxidation, dehydration, substitution, esterification, and reactions of alkoxides.Application of 620-92-8

Referemce:
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts