Tag: 200-300

Automated Annotation and Evaluation of In-Source Mass Spectra in GC/Atmospheric Pressure Chemical Ionization-MS-Based Metabolomics was written by Jaeger, Carsten;Hoffmann, Friederike;Schmitt, Clemens A.;Lisec, Jan. And the article was included in Analytical Chemistry (Washington, DC, United States) in 2016.Computed Properties of C8H10ClNO3 The following contents are mentioned in the article:

Gas chromatog. using atm. pressure chem. ionization coupled to mass spectrometry (GC/APCI-MS) is an emerging metabolomics platform, providing much-enhanced capabilities for structural mass spectrometry as compared to traditional electron ionization (EI)-based techniques. To exploit the potential of GC/APCI-MS for more comprehensive metabolite annotation, a major bottleneck in metabolomics, the authors here present the novel R-based tool InterpretMSSpectrum assisting in the common task of annotating and evaluating in-source mass spectra as obtained from typical full-scan experiments When passed a list of mass-intensity pairs, InterpretMSSpectrum locates the mol. ion (M0), fragment and adduct peaks, calculates their most likely sum formula combination and graphically summarizes results as an annotated mass spectrum. Using (modifiable) filter rules for the commonly used methoximated-trimethylsilylated (MeOx-TMS) derivatives, covering elemental composition, typical substructures, neutral losses and adducts, InterpretMSSpectrum significantly reduces the number of sum formula candidates, minimizing manual effort for postprocessing candidate lists. The authors demonstrate the utility of InterpretMSSpectrum for 86 in-source spectra of derivatized standard compounds, in which rank-1 sum formula assignments were achieved in 84% of the cases, compared to only 63% when using mass and isotope information of the M0 alone. The authors further use, for the first time, automated annotation to evaluate the purity of pseudospectra generated by different metabolomics preprocessing tools, showing that automated annotation can serve as an integrative quality measure for peak picking/deconvolution methods. As an R package, InterpretMSSpectrum integrates flexibly into existing metabolomics pipelines and is freely available from CRAN (https://cran.r-project.org/). This study involved multiple reactions and reactants, such as 3-Hydroxy-5-(hydroxymethyl)-2-methylisonicotinaldehyde hydrochloride (cas: 65-22-5Computed Properties of C8H10ClNO3).

3-Hydroxy-5-(hydroxymethyl)-2-methylisonicotinaldehyde hydrochloride (cas: 65-22-5) belongs to alcohols. Alcohols are weak acids. The most acidic simple alcohols (methanol and ethanol) are about as acidic as water, and most other alcohols are somewhat less acidic. The most common reactions of alcohols can be classified as oxidation, dehydration, substitution, esterification, and reactions of alkoxides.Computed Properties of C8H10ClNO3

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Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts

Schiff base Sn(IV) complexes as cytotoxic agents: Synthesis, structure, isosteric and bioisosteric replacement was written by Galvan-Hidalgo, Jose M.;Ramirez-Apan, Teresa;Nieto-Camacho, Antonio;Hernandez-Ortega, Simon;Gomez, Elizabeth. And the article was included in Journal of Organometallic Chemistry in 2017.Related Products of 65-22-5 The following contents are mentioned in the article:

The preparation and characterization of two series of organotin(IV) 4-pyridinecarbaldimine Schiff base complexes I (R¹ = Cy, CH₂SiMe₃; R = H, F, Cl, Me, MeO, NO₂, ^tBu) are reported, each series differing in the nature of the substituent bonded to the tin atom (cyclohexyl or bis(trimethyl)silylmethyl). The isosteric and bioisosteric approach was used as the strategy of mol. design. The ligand was 5-hydroxymethyl-4-[(2-hydroxyphenyl)iminomethyl]-2-methylpyridin-3-ol substituted at position 4 by Me, halogeno (F, Cl), methoxy, nitro and tert-butyl; the synthesis of the organotin(IV) complexes was performed by a multi-component strategy in reasonable to high yields depending on the nature of the ligand. All new complexes were fully characterized by IR, MS, X-ray determinations and NMR (¹H, ¹³C, ¹¹⁹Sn). Crystallog. data of complexes showed the geometries adopted around the metal tin center varied between square pyramidal in 2c and a trigonal bipyramidal in 3b–3d with the alkyl groups in the trigonal plane and the two oxygen atoms in the equatorial plane. Addnl., the in vitro cytotoxicity tests of the complexes towards six types of human cancerous cell lines U-251 (glioblastoma), K-562 (chronic myelogenous leukemia), HCT-15 (human colorectal), MCF-7 (human breast), MDA-MB-231 (human breast) and SKLU-1 (non-small cell lung) showed the superior activity of the organotin complexes compared to the corresponding cisplatin used as pos. control. The complexes containing fluorine exhibited excellent IC₅₀ data indicating that both the bioisosteric replacement and the cyclohexyl ring bonded to the tin atom increased the potency of the cytotoxic activity towards the cancer cell lines tested. This study involved multiple reactions and reactants, such as 3-Hydroxy-5-(hydroxymethyl)-2-methylisonicotinaldehyde hydrochloride (cas: 65-22-5Related Products of 65-22-5).

3-Hydroxy-5-(hydroxymethyl)-2-methylisonicotinaldehyde hydrochloride (cas: 65-22-5) 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.Related Products of 65-22-5

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Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts

Identification and quantification of bisphenols in water by dissipation followed by silylation using gas chromatography-mass spectrometry analysis was written by Katari, B. V. Narasimha Raju;Madhu, Vemula;Nowduri, Annapurna;Kaliyaperumal, Muralidharan;Rumalla, Chidananda Swamy. And the article was included in Asian Journal of Chemistry in 2022.Product Details of 620-92-8 The following contents are mentioned in the article:

Bisphenols are important endocrine disruptors, which were widely used in the variety of food packing and storage materials which often come into contact with various food products packed in them. The presence of bisphenols in water is harmful for the health of humans as well as aquatic animals and also, they accumulate over a period of time. Hence, the present work aimed to develop a simple and accurate GCMS-SIM method for the quantification of bisphenols in packaged drinking water as well as the water samples collected in river and lakes in Andhra Pradesh state of India. Bisphenols were extracted by simple solvent extraction with acetonitrile and silylated by N,O-bis(trimethylsilyl)trifluoro acetamide and analyzed by GC-MS. Various parameters that affect the recovery of the analytes were carefully optimized and the developed method was validated. The recoveries of the analytes were in the range of 80-120 % with quantification limit of 1 ng/L. The calibration curve was linear in the concentration range of 5 ng/L to 10 μg/L. The method was applied for the quantification of bisphenols in packaged drinking water at room temperature and at 50 °C at various time intervals. The results proved that the water sample kept at room temperature doesn′t shows peaks corresponding to bisphenols. The water sample exposed to 50 °C for 30 days bisphenols content 10, 12, 22 and 8 ng/L resp. for bisphenol G (BPG), bisphenol F (BPF), bisphenol E, (BPE) and bisphenol A (BPA) whereas the same sample at 180 days of exposer shows 60, 51, 61 and 22 ng/L resp. confirms that the leaching of plastic due to temperature increases the bisphenols level. Among the real time samples studied, the bisphenols level was observed to be very high in Kolleru Lake and it is having 17, 14, 8 and 12 ng/L of BPG, BPF, BPE and BPA, resp. confirms that due to high plastic pollution the bisphenols level was high in these samples. Hence, it can be concluded that the method can be suitable for the anal. of bisphenols in drinking water as well as in wastewater samples. This study involved multiple reactions and reactants, such as 4,4′-Methylenediphenol (cas: 620-92-8Product Details 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. 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.Product Details of 620-92-8

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Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts

Study on Surface Discharge Characteristics of GO-Doped Epoxy Resin-LN₂ Composite Insulation was written by Xing, Yunqi;Chen, Yuanyuan;Yuan, Ruiyi;Yang, Zhuoran;Yao, Tianyi;Li, Jiehua;Zhu, Wenbo;Wang, Xiaoxue. And the article was included in Polymers (Basel, Switzerland) in 2022.Name: 4,4′-Methylenediphenol The following contents are mentioned in the article:

Superconducting power lead equipment for epoxy insulation, such as high-temperature superconducting DC power or liquefied natural gas energy pipelines, as well as high-temperature superconducting cables, has long been used in extreme environments, from liquid nitrogen temperatures to normal temperatures It is easy to induce surface discharge and flashover under the action of strong elec. field, which accelerates the insulation failure of current leads. In this paper, two-dimensional nano-material GO was used to control the elec. properties of epoxy resins. The DC surface discharge and flashover characteristics of the prepared epoxy resin-GO composite insulation materials were tested at room temperature with liquid nitrogen. The surface discharge mechanism of the epoxy resin-GO composite insulation materials was analyzed. The exptl. results show that the insulation properties of epoxy composites doped with GO changed. Among them, the surface flashover voltage of 0.05 wt% material is the best, which can inhibit the discharge phenomenon and improve its insulation properties in extreme environments, from room temperature to liquid nitrogen temperature It is found that the development process of surface discharge of composite insulating materials under liquid nitrogen is quite different from that under room temperature Before critical flashover, the repetition rate and amplitude of surface discharge remain at a low level until critical flashover. Furthermore, the voltage of the first flashover is significantly higher than that of the subsequent flashover under the action of the desorption gas on the surface of the composite insulating material and the gasification layer produced by the discharge. Given that the surface flashover voltage of 0.05 wt% epoxy composite is the best, the research and anal. of 0.05 wt% composite is emphasized. In the future design of superconducting power lead insulation, the modification method of adding GO to epoxy resin can be considered in order to improve its insulation performance. This study involved multiple reactions and reactants, such as 4,4′-Methylenediphenol (cas: 620-92-8Name: 4,4′-Methylenediphenol).

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. Under carefully controlled conditions, simple alcohols can undergo intermolecular dehydration to give ethers. This reaction is effective only with methanol, ethanol, and other simple primary alcohols.Name: 4,4′-Methylenediphenol

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Alcohol – Wikipedia,
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Analytical method for the biomonitoring of bisphenols and parabens by liquid chromatography coupled to tandem mass spectrometry in human hair was written by Robin, Julien;Binson, Guillaume;Albouy, Marion;Sauvaget, Alexis;Pierre-Eugene, Pascale;Migeot, Virginie;Dupuis, Antoine;Venisse, Nicolas. And the article was included in Ecotoxicology and Environmental Safety in 2022.Application of 620-92-8 The following contents are mentioned in the article:

Bisphenols and parabens are endocrine disruptors families widely used in daily life. They are known to be linked to numerous pathologies such as reproductive disorders, obesity, breast cancer, hypertension and asthma. Biomonitoring is an essential tool for assessing population exposure to environmental pollutants. Blood and urine are the main matrixes used in human biomonitoring. However, they are not suitable to evaluate long-term exposure to endocrine disruptors with a short elimination half-life such as parabens or phenols. Hair appears to be an interesting alternative matrix allowing a wide window of exposure due to an accumulation of xenobiotics during hair growth. This study presents the development and validation of a high-performance liquid chromatog. coupled to tandem mass spectrometry for the simultaneous determination of bisphenol A, its chlorinated derivatives, bisphenol F, bisphenol S and parabens in human hair. An optimized sample preparation based on acidic hydrolysis followed by liquid-liquid extraction was performed, before an anal. by ultra-high performance liquid chromatog. coupled to tandem mass spectrometry in multiple reaction monitoring mode. To validate the method, recognized bioanal. guidelines were used and calibration and quality control samples were prepared in human hair samples. Linearities were over 0.996 in the whole range of concentrations Trueness and precision were demonstrated for each target analyte with intra-day and inter-day bias values ranging from 86% to 118% and relative standard deviation values ranging from 0% to 19%. At the same time, limits of quantification were set at 0.25 ng/g for bisphenol A and parabens, 0.05 ng/g for bisphenols F and S and 0.00625 ng/g for the chlorinated derivatives of bisphenol A. This reliable method was applied to hair samples taken from hospital professionals and allowed the quantification of these endocrine disruptors in this population. Chlorinated derivatives of bisphenol A were quantified here in hair for the first time. 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. Alcohols are weak acids. The most acidic simple alcohols (methanol and ethanol) are about as acidic as water, and most other alcohols are somewhat less acidic. 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

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Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts

Documentation of Phytotoxic Compounds Existing in Parthenium hysterophorus L. Leaf and Their Phytotoxicity on Eleusine indica (L.) Gaertn. and Digitaria sanguinalis (L.) Scop was written by Bashar, Hm khairul;Juraimi, Abdul Shukor;Ahmad-Hamdani, Muhammad Saiful;Uddin, Kamal Md;Asib, Norhayu;Anwar, Parvez Md.;Karim, Sm rezaul;Rahaman, Ferdoushi;Haque, Mohammad Amdadul;Hossain, Akbar. And the article was included in Toxins in 2022.Related Products of 367-93-1 The following contents are mentioned in the article:

The utilization of the invasive weed, Parthenium hysterophorus L. for producing value-added products is novel research for sustaining our environment. Therefore, the current study aims to document the phytotoxic compounds contained in the leaf of parthenium and to examine the phytotoxic effects of all those phytochems. on the seed sprouting and growth of Crabgrass Digitaria sanguinalis (L.) Scop. and Goosegrass Eleusine indica (L.) Gaertn. The phytotoxic substances of the methanol extract of the P. hysterophorus leaf were analyzed by LC-ESI-QTOF-MS=MS. From the LC-MS study, many compounds, such as terpenoids, flavonoids, amino acids, pseudo guaianolides, and carbohydrate and phenolic acids, were identified. Among them, seven potential phytotoxic compounds (i.e., caffeic acid, vanillic acid, ferulic acid, chlorogenic acid, quinic acid, anisic acid, and parthenin) were documented, those are responsible for plant growth inhibition. The concentration needed to reach 50% growth inhibition in respect to germination (ECg50), root length (ECr50), and shoot length (ECs50) was estimated and the severity of phytotoxicity of the biochems. was determined by the pooled values (rank value) of three inhibition parameters. The highest growth inhibition was demarcated by caffeic acid, which was confirmed and indicated by cluster anal. and principal component anal. (PCA). In the case of D. sanguinalis, the germination was reduced by 60.02%, root length was reduced by 76.49%, and shoot length was reduced by 71.14% when the chem. was applied at 800 μM concentration, but in the case of E. indica, 100% reduction of seed germination, root length, and shoot length reduction occurred at the same concentration The lowest rank value was observed from caffeic acids in both E. indica (rank value 684.7) and D. sanguinalis (909.5) caused by parthenin. It means that caffeic acid showed the highest phytotoxicity. As a result, there is a significant chance that the parthenium weed will be used to create bioherbicides in the future. 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: 367-93-1Related Products of 367-93-1).

(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. The most common reactions of alcohols can be classified as oxidation, dehydration, substitution, esterification, and reactions of alkoxides.Related Products of 367-93-1

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Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts

Validated GC-MS method for determination of bisphenol a and its five analogues in dietary and nutritional supplements was written by Owczarek, Katarzyna;Waraksa, Emilia;Klodzinska, Ewa;Zrobok, Yaroslav;Ozimek, Mariusz;Rachon, Dominik;Kudlak, Blazej;Wasik, Andrzej;Mazerska, Zofia. And the article was included in Microchemical Journal in 2022.Synthetic Route of C13H12O2 The following contents are mentioned in the article:

Bisphenol A (BPA) and its analogs showing structural and functional similarity to BPA are commonly applied in various industrial applications and thus are becoming ubiquitous in the environment. At the same time there is increasing scientific evidence that exposure to these chems. may lead to adverse health effects in human and wildlife. In recent years dietary and nutritional supplements dedicated for athletes have become more popular and are widely used even by people who are not professionals. This study presents the development, optimization and validation of an anal. procedure for determination of six bisphenol analogs in dietary supplements using gas chromatog. – mass spectrometry technique. All validation parameters met the established acceptance criteria in accordance with international guidelines. The method was linear within the tested range of 50-1000 ng/mL, the limit of quantitation was set as the lowest calibration point 50 ng/mL, detection limit for each bisphenol was calculated as standard estimation error on the basis of the linearity testing and was in the range of 8.73-15.44 ng/mL. Method trueness, accuracy (within and between runs) and precision were also verified and were in the range of 78.8 – 100.4%, 94.3 – 103.1%,0.5 – 9.6% resp. The developed procedure was successfully applied for real samples anal., namely for fifteen sport supplements of different composition and designated for various purposes, i.e. for increasing effectiveness, promoting muscle recovery and endurance, reducing tiredness and fatigue or increasing immune ability. For the majority of samples, bisphenols were either not detected or detected at the LOD level except bisphenol A which was quantitated in few samples at LOQ level or higher (in the range 0.852-2.892 ng/mg). The field of bisphenol analogs analytics has increased in recent years due to law regulations becoming more strict, thus the development of new anal. tools for quality control of dietary products is needed and fully justified. This study involved multiple reactions and reactants, such as 4,4′-Methylenediphenol (cas: 620-92-8Synthetic Route of C13H12O2).

4,4′-Methylenediphenol (cas: 620-92-8) belongs to alcohols. Alkyl halides are often synthesized from alcohols, in effect substituting a halogen atom for the hydroxyl group. 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.Synthetic Route of C13H12O2

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Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts

Iron(III) Complexes of a Pyridoxal Schiff Base for Enhanced Cellular Uptake with Selectivity and Remarkable Photocytotoxicity was written by Basu, Uttara;Pant, Ila;Hussain, Akhtar;Kondaiah, Paturu;Chakravarty, Akhil R.. And the article was included in Inorganic Chemistry in 2015.Category: alcohols-buliding-blocks The following contents are mentioned in the article:

Fe(III) complexes of pyridoxal (vitamin B6, VB6) or salicylaldehyde Schiff bases and modified dipicolylamines, namely, [Fe(B)(L)](NO₃) (1-5), where B is phenyl-N,N-bis((pyridin-2-yl)methyl)methanamine (phbpa in 1), (anthracen-9-yl)-N,N-bis((pyridin-2-yl)methyl)methanamine (anbpa in 2, 4) and (pyren-1-yl)-N,N-bis((pyridin-2-yl)methyl)methanamine (pybpa in 3, 5) (H₂L¹ is 3-hydroxy-5-(hydroxymethyl)-4-(((2-hydroxyphenyl)imino)methyl)-2-methylpyridine (1-3) and H₂L² is 2-[(2-hydroxyphenyl-imino)methyl]phenol), were prepared and their uptake in cancer cells and photocytotoxicity were studied. Complexes 4 and 5, having a nonpyridoxal Schiff base, were prepared to probe the role of the pyridoxal group in tumor targeting and cellular uptake. The PF₆ salt (1a) of complex 1 is structurally characterized. The complexes have a distorted six-coordinate FeN₄O₂ core where the metal is in the +3 oxidation state with five unpaired electrons. The complexes display a ligand to metal charge transfer band near 520 and 420 nm from phenolate to the Fe(III) center. The photophys. properties of the complexes are explained from the time dependent d. functional theory calculations The redox active complexes show a quasi-reversible Fe(III)/Fe(II) response near -0.3 V vs. SCE. Complexes 2 and 3 exhibit remarkable photocytotoxicity in various cancer cells with IC₅₀ values ranging from 0.4 to 5 μM with 10-fold lower dark toxicity. The cell death proceeded by the apoptotic pathway due to generation of reactive O species upon light exposure. The nonvitamin complexes 4 and 5 display 3-fold lower photocytotoxicity compared to their VB6 analogs, possibly due to preferential and faster uptake of the vitamin complexes in the cancer cells. Complexes 2 and 3 show significant uptake in the endoplasmic reticulum, while complexes 4 and 5 are distributed throughout the cells without any specific localization pattern. This study involved multiple reactions and reactants, such as 3-Hydroxy-5-(hydroxymethyl)-2-methylisonicotinaldehyde hydrochloride (cas: 65-22-5Category: alcohols-buliding-blocks).

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. 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.Category: alcohols-buliding-blocks

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Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts

Enhanced adsorption selectivity of bisphenol analogues by tuning the functional groups of covalent organic frameworks was written by Zhao, Yue;Feng, Chenghong;Tian, Chenhao;Li, Zhenling;Yang, Yu. And the article was included in Separation and Purification Technology in 2022.Related Products of 620-92-8 The following contents are mentioned in the article:

Bisphenol analogs (BPs) are widely used as plasticizers and can be released during the aging and degradation of microplastics. Their persistence in water can cause serious harm to the ecosystem and human health. To improve the capture ability of COFs toward these estrogen-like toxins from water, amino group-functionalized COFs (COFs-TpBD(NH₂)₂) were constructed from nitro group COFs (COFs-TpBD(NO₂)₂) via the reduction of nitro to amino groups, and the adsorption behaviors for the five BPs (BPA, BPF, BPC, BPS and 4-CP) were compared. The focus was laid on the role of functional-group-tuning in the changes of adsorption capacity, selectivity and mechanisms of the COFs absorbents. The results showed that TpBD(NH₂)₂ has a higher adsorption capacity and better adsorption selectivity for most BPs than TpBD(NO₂)₂. COFs with nitro and amino groups show the best adsorption selectivity for BPC (KF = 6.71 min^-1) and BPF (KF = 9.49 min^-1), resp. Chemisorption dominates the adsorption of the two COFs, and internal particle diffusion is the rate-determining step. The adsorption behavior difference between the two COFs was ascribed to the successful conversion of functional groups of the COFs from nitro to amino groups, which was proven by FT-IR, SEM, PXRD, and BET characterization results. Adsorption of BPA, BPC and BPF by TpBD(NO₂)₂ is pos. related to hydrophobic interactions (represented by log Kow), but the adsorption mechanism of TpBD(NH₂)₂ was mainly attributed to the electrostatic interaction, as evidenced by the zeta potential and pKa. Hydrogen bonds were proven to be a critical factor that affects the adsorption of BPS and 4-CP by COFs. This study on the appropriate selection of COFs functional groups can provide insight into the future design of adsorbents and the prevention of BPs pollution release from microplastics. This study involved multiple reactions and reactants, such as 4,4′-Methylenediphenol (cas: 620-92-8Related Products 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. 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.Related Products of 620-92-8

Referemce:
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts

Synergistic oxidation of organic micropollutants by Mn(VII)/periodate system: Performance and mechanism was written by Niu, Lijun;An, Lili;Zhang, Kaiting;Chen, Qian;Yu, Xin;Zhang, Menglu;Feng, Mingbao. And the article was included in Separation and Purification Technology in 2022.Recommanded Product: 4,4′-Methylenediphenol The following contents are mentioned in the article:

The increased release of various emerging organic contaminants into natural waters has posed great threats to ecol. safety and public health. The ensuing global water contamination has necessitated the development of highly efficient treatment strategies for water purification Herein, we presented for the first time that the combined utilization of permanganate (Mn(VII)) and periodate (PI) could synergistically and rapidly accomplish complete destruction of different organic micropollutants (e.g., bisphenol F, methotrexate, and tetracycline) within 2-5 min. Comparatively, the single treatment only eliminated very small amounts of micropollutants. Mechanistic investigations were performed using the trapper-based ESR, scavenging and probe experiments, UV-vis spectra anal., determination of iodine species, and multiple validation tests. These data collectively suggested that the highly reactive Mn(V)/Mn(VI) intermediates played the leading role in accelerating contaminant abatement within the Mn(VII)/PI oxidation system. Reactive oxygen/or iodine species (¹O₂, ^·OH, O₂·^–, IO₃·, and IO₄·) and low valence Mn species (Mn(II), Mn(III), and in-situ formed MnO₂ colloids) did not participate in decontamination in this process. Subsequently, the oxidized products of three micropollutants were determined, and the transformation pathways were clarified. Ring-opening, C-C bond cleavage, demethylation, carbonylation, and hydroxylation reactions mainly occurred in the degradation process. Notably, the combined system did not yield any toxic iodinated end products. Finally, the environmental risks of the degradation products were also evaluated based on in silico QSAR-based prediction tools. Overall, this study provides a novel, highly efficient, and green treatment technol., i.e., Mn(VII)/PI system, which could be employed for rapid and sustainable water decontamination. This study involved multiple reactions and reactants, such as 4,4′-Methylenediphenol (cas: 620-92-8Recommanded Product: 4,4′-Methylenediphenol).

4,4′-Methylenediphenol (cas: 620-92-8) 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. 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.Recommanded Product: 4,4′-Methylenediphenol

Referemce:
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts