Category: 620-92-8

Association of bisphenol A, bisphenol F, and bisphenol S with ADHD symptoms in children was written by Kim, Johanna Inhyang;Lee, Young Ah;Shin, Choong Ho;Hong, Yun-Chul;Kim, Bung-Nyun;Lim, Youn-Hee. And the article was included in Environment International in 2022.HPLC of Formula: 620-92-8 The following contents are mentioned in the article:

Bisphenol A (BPA) has been linked to attention-deficit/hyperactivity disorder (ADHD) symptoms, but the neurotoxic effects of bisphenol substitutes such as bisphenol F (BPF) and S (BPS) have not been well investigated. We investigated the associations between BPA, BPF, and BPS with ADHD symptoms at multiple time points in children. The levels of BPA (at ages 4, 6, and 8), BPF (at ages 6 and 8), and BPS (at ages 6 and 8) were measured in 619 children. Because of the low detection frequency of BPF and BPS levels, participants were divided into categories (<or = limit of detection (LOD) for BPF; < LOD, = LOD and < median, or = median for BPS). ADHD symptoms were assessed using the ADHD Rating Scale IV (ARS). The relationship between bisphenols and ARS scores was analyzed using Poisson regression models, and generalized additive models and piecewise regression models were further explored for BPA. BPA was detected in most participants (>97%), whereas BPF and BPS were less frequently detected (age 6: 17.5% for BPF and 42.0% for BPS; age 8: 51.6% for BPF and 73.3% for BPS). Doubling in BPA levels was associated with increased ARS scores by 4.7% (95% confidence intervals [CI]: 0.5, 9.2) at age 6. The association was greater with BPA levels higher than 3.0 μg/g creatinine (24.2% [95% CI: 15.5, 33.6] increase). The BPF = LOD group had 10.8% (95% CI: 1.2, 21.4) higher ARS scores than the BPF < LOD group. The BPS = median group had 11.4% (95% CI: 2.0, 21.7) higher ARS scores than the BPS < LOD group. All bisphenols, in particular those at or above the LOD or median levels, were associated with ADHD symptoms at age 6. Further prospective studies are warranted to determine causal inference. This study involved multiple reactions and reactants, such as 4,4′-Methylenediphenol (cas: 620-92-8HPLC of Formula: 620-92-8).

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.HPLC of Formula: 620-92-8

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Alcohol – Wikipedia,
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Transcriptomics integrated with metabolomics reveals the effect of Bisphenol F (BPF) exposure on intestinal inflammation was written by Liu, Yongjie;Tang, Weifeng;Ao, Junjie;Zhang, Jun;Feng, Liping. And the article was included in Science of the Total Environment in 2022.COA of Formula: C13H12O2 The following contents are mentioned in the article:

As a viable alternative to Bisphenol A (BPA), Bisphenol F (BPF) has been detected in humans at comparable concentrations and detection frequencies. Emerging evidence reveals that BPF induces intestinal toxicity. However, less information is available concerning BPF and its potential effects on intestinal inflammation, which has been associated with numerous disorders. The results from the present study showed that BPF exposure triggered lipopolysaccharide (LPS)-induced explosion of pro-inflammatory cytokines interleukin-17A (IL-17A), tumor necrosis factor-α (TNF-α), and interferon-γ (IFN-γ) and impairment of the intestinal epithelial barrier by downregulating the expression of tight junction proteins Zonula Occludens-1 (ZO-1) and Claudin-1 (CLDN1) in normal colonic epithelial cells (NCM460). A multi-omics anal. integrating the transcriptomics with metabolomics revealed an altered transcripts and metabolites profile following BPF exposure. Correlation anal. indicated that RAS Guanyl Releasing Protein 2 (RASGRP2) and Phospholipase A2 Group IVE (PLA2G4E) were pos. associated with the increased serotonin which was pos. associated with the stimulated IFN-γ in BPF-treated NCM460 cells. Pyrogallol, pyridoxine, and N-acetylputrescine were pos. associated with IL-17A levels. Collectively, the integrative analyses demonstrated an orchestrated coordination between the inflammatory response, transcriptomic, and metabolomics changes. Data presented herein provide evidence for the possible roles of BPF in the pathogenesis of intestinal inflammation. These results illustrate the advantages of using integrative analyses of high throughput datasets for characterizing the effects and mechanisms of toxicants. This study involved multiple reactions and reactants, such as 4,4′-Methylenediphenol (cas: 620-92-8COA of Formula: C13H12O2).

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. Secondary alcohols are easily oxidized without breaking carbon-carbon bonds only as far as the ketone stage. No further oxidation is seen except under very stringent conditions.COA of Formula: C13H12O2

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Alcohol – Wikipedia,
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Developing the large-area manganese-based catalytic ceramic membrane for peroxymonosulfate activation: Applications in degradation of endocrine disrupting compounds in drinking water was written by Chen, Li;Maqbool, Tahir;Nazir, Ghazanfar;Hou, Congyu;Yang, Yulong;Guo, Jianning;Zhang, Xihui. And the article was included in Journal of Membrane Science in 2022.HPLC of Formula: 620-92-8 The following contents are mentioned in the article:

Endocrine disrupting compounds (EDCs) in the aquatic systems are of growing concerns that could undermine drinking water safety. In this study, manganese (III) oxide (Mn2O3) based catalytic ceramic membrane (CCM) was developed for the activation of peroxymonosulfate (PMS), and its applicability has been tested in degrading the ten different EDCs (including bisphenol analogs (BPs)) in drinking water. The CCMs were synthesized at different calcination temperatures i.e., 850, 950, and 1150°C. Optimal performance of CCMs/PMS was achieved at a higher degree of calcination. The CCMs/PMS has shown a potential to effectively degrade the EDCs at higher concentrations (mg/L) to trace levels (ng/L). The CCMs/PMS system adopted a non-radical pathway of degrading the EDCs through the extensive generation of singlet oxygen (1O2), as confirmed using quenching experiments and ESR (EPR) spectroscopy. 1O2-based oxidation process showed special selectivity for the decontamination of phenols and bisphenols. The long-term performance of CCMs/PMS showed good stability in degradation of the EDCs in drinking water, also with efficient mineralization (TOC removal >55%) and negligible release of Mn (0.004 wt%Mn/min). CCMs/PMS system also showed high potential in improving water quality by reducing the disinfection byproducts (DBPs) formation potential, highest recorded for bromodichloromethane (CHCl2Br, 100%) and lowest for dichloroacetic acids (TCAA, ∼50%). The study provided a highly efficient catalytic ceramic membrane based advanced oxidation process (AOPs) for effective degradation multiple of EDCs in drinking water, and the findings of this work can be a baseline for full-scale water treatment applications. This study involved multiple reactions and reactants, such as 4,4′-Methylenediphenol (cas: 620-92-8HPLC of Formula: 620-92-8).

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. Grignard and organolithium reagents are powerful tools for organic synthesis, and the most common products of their reactions are alcohols.HPLC of Formula: 620-92-8

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Synthesis and Flame-Retardant Performance of Epoxy Resins Containing Aromatic Imine from Different Bisphenols Based on the Duff Reaction was written by Wang, Shengda;Jiang, Hanqing;Yu, Ronghua;Lou, Shenghui;Ma, Li;Liu, Jie;Tang, Tao. And the article was included in Chemistry of Materials in 2022.Reference of 620-92-8 The following contents are mentioned in the article:

A series of epoxy resins containing aromatic imine are synthesized via the Duff reaction by using various bisphenols, which show significantly reduced heat release capacity (HRC) and total heat release (THR) after curing. Compared to diglycidyl ether bisphenol A/4,4-diaminodiphenylmethane (DGEBA/DDM), the HRC and THR of phenolphthalein-based epoxy resin containing aromatic imine/DDM (BPP-E/DDM) are reduced by 87% (464 J/g K vs 58 J/g K) and 62% (30.2 kJ/g vs 11.4 kJ/g), resp. Furthermore, the BPP-E/DDM exhibits a UL-94 V-0 rating (1.6 mm) and a limiting oxygen index of 48% (3.2 mm). Compared to DGEBA/DDM in the cone calorimeter test, the peak heat release rate, THR, peak smoke produce rate, and total smoke production of BPP-E/DDM were reduced by 91% (1006 kW/m²vs 87 kW/m²), 51% (89 MJ/m²vs 44 MJ/m²), 89% (0.36 m²/s vs 0.09 m²/s), and 79% (38 m²vs 8 m²), resp. The influences of aromatic imine and the chem. structures between two benzene rings in the bisphenols on HRC and THR of the resultant epoxy thermosets are investigated. The mechanism studies show that the presence of aromatic imine in the epoxy resins completely changes the decomposition process to generate the products containing aromatic N-heterocycle, which contributes greatly to the improved char-forming ability and flame retardancy. Meanwhile the thermosets bearing carbonyl, 3-phthalidylene, and sulfonyl between two benzene rings in the bisphenols show better char-forming ability and flame retardancy among the resultant epoxy resins containing aromatic imine, due to more polycyclic aromatic hydrocarbons produced in the condensed phase. This study involved multiple reactions and reactants, such as 4,4′-Methylenediphenol (cas: 620-92-8Reference 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. 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.Reference of 620-92-8

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Alcohol – Wikipedia,
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Estimation of parabens and bisphenols in maternal products and urinary concentrations in Indian pregnant women: daily intake and health risk assessment was written by Varghese, Bincy;Jala, Aishwarya;Das, Panchanan;Borkar, Roshan M.;Adela, Ramu. And the article was included in Environmental Science and Pollution Research in 2022.Synthetic Route of C13H12O2 The following contents are mentioned in the article:

The presence of parabens and bisphenols in maternal products and usage during pregnancy have raised serious concern about their possible harm to pregnant women. The concentrations of six parabens and eight bisphenols were quantified by high-performance liquid chromatog.-tandem mass spectrometry in the samples of com. available herbal-based ayurvedic maternal products and urine of healthy pregnant women from Assam, India. Me paraben (MP) and bisphenol AF (BPAF) were found to be more dominant in the maternal products, whereas MP, bisphenol A (BPA), and BPAF were dominant in urine samples of healthy pregnant women. The sum of the mean concentrations of all forms of parabens and bisphenols in maternal products were 48,308.50 ng/g and 542.42 ng/g, resp., and urine 101.33 ng/mL and 23.42 ng/mL, resp. The estimated daily intake (EDI) of total parabens and bisphenols in maternal products were 7378.02 and 19.78 ng/kg body weight/day, resp. EDI of total parabens and bisphenols from urinary concentrations were 690.12 and 111.33μg/kg body weight/day, resp. The concentrations of Bu (BP) and heptyl (HP) parabens have a significant pos. correlation with birth weight The hazard quotient (HQ) value of MP, EP, and BPA was less than 1, and margin of exposure (MOE) identified potential risk associated with Pr paraben. Results from Monte-Carlo risk assessment anal. did not exceed the acceptable daily intake (ADI). Our results showed that higher concentrations of parabens and bisphenols are present in maternal products and the urine of healthy pregnant women. Hence maternal products containing bisphenols and parabens should be used cautiously during pregnancy to avoid maternal and fetal complications. 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. 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. Grignard and organolithium reagents are powerful tools for organic synthesis, and the most common products of their reactions are alcohols.Synthetic Route of C13H12O2

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Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts

Maternal urinary concentrations of bisphenol A during pregnancy are associated with global DNA methylation in cord blood of newborns in the “NELA” birth cohort was written by Navarro-Lafuente, Fuensanta;Adoamnei, Evdochia;Arense-Gonzalo, Julian J.;Prieto-Sanchez, Maria T.;Sanchez-Ferrer, Maria L.;Parrado, Antonio;Fernandez, Mariana F.;Suarez, Beatriz;Lopez-Acosta, Antonia;Sanchez-Guillamon, Antonio;Garcia-Marcos, Luis;Morales, Eva;Mendiola, Jaime;Torres-Cantero, Alberto M.. And the article was included in Science of the Total Environment in 2022.Recommanded Product: 4,4′-Methylenediphenol The following contents are mentioned in the article:

Endocrine disrupting chems. (EDCs) set a public health risk through disruption of normal physiol. processes. The toxicoepigenetic mechanisms of developmental exposure to common EDCs, such as bisphenol A (BPA), are poorly known. The present study aimed to evaluate associations between perinatal maternal urinary concentrations of BPA, bisphenol S (BPS) and bisphenol F (BPF) and LINE-1 (long interspersed nuclear elements) and Alu (short interspersed nuclear elements, SINEs) DNA methylation levels in newborns, as surrogate markers of global DNA methylation. Data come from 318 mother-child pairs of the Nutrition in Early Life and Asthma (NELA) birth cohort. Urinary bisphenol concentration was measured by dispersive liquid-liquid microextraction and ultrahigh performance liquid chromatog. with tandem mass spectrometry detection. DNA methylation was quant. assessed by bisulphite pyrosequencing on 3 LINEs and 5 SINEs. Unadjusted linear regression analyses showed that higher concentration of maternal urinary BPA in 24th weeks pregnancy was associated with an increase in LINE-1 methylation in all newborns (p = 0.01) and, particularly, in male newborns (p = 0.03). These associations remained in full adjusted models [beta = 0.09 (95% CI = 0.03; 0.14) for all newborns; and beta = 0.10 (95% CI = 0.03; 0.17) for males], including a non-linear association for female newborns as well (p-trend = 0.003). No associations were found between maternal concentrations of bisphenol and Alu sequences. Our results suggest that exposure to environmental levels of BPA may be associated with a modest increase in LINE-1 methylation -as a relevant marker of epigenomic stability- during human fetal development. However, any effects on global DNA methylation are likely to be small, and of uncertain biol. significance. 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. Because alcohols are easily synthesized and easily transformed into other compounds, they serve as important intermediates in organic synthesis. 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.Recommanded Product: 4,4′-Methylenediphenol

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Simultaneous determination of seven bisphenol analogues in surface water by solid-phase extraction and ultra-performance liquid chromatography-tandem mass spectrometry was written by Wang, Qiuxu;Feng, Qiyan;Hu, Guanjiu;Gao, Zhanqi;Zhu, Xueqiang;Epua Epri, James. And the article was included in Microchemical Journal in 2022.Formula: C13H12O2 The following contents are mentioned in the article:

For the simultaneous determination of seven types of bisphenol analogs (BPs) in surface water, a method combining solid-phase extraction (SPE) with ultra-performance liquid chromatog.-tandem mass spectrometry (UPLC-MS/MS) was developed. The extraction efficiency was improved by optimizing the parameters that affect it, including the sorbent types of SPE cartridge, pH, enrichment factor, flow rate, rinsing and elution volume On the basis of the single factor experiments, an attempt to obtain the result of optimizing by response surface methodol. was made, and the optimal parameters were as follows: at a flow rate of 8 mL/min, 1000 mL of water sample was run through the hydrophilic-lipophilic balance cartridge, rinsed with 10% methanol, eluted with 9 mL methanol, and concentrated with nitrogen using an automatic SPE system. The analytes were separated on an Acquity UPLC BEH C18 column using gradient elution with a mobile phase of acetonitrile and 0.05% (volume/volume) ammonia, and then analyzed using UPLC-MS/MS with multiple reaction monitoring in the neg.-ion mode, with an 8-min chromatog. run time. In the range of 1.0-500μg/L, seven BPs showed good linearity with the correlation coefficient greater than 0.998. The recovery ranged from 82.3 to 96.7%, and the range of matrix effect was 89.2 to 107%. These results indicated excellent recovery and minimal matrix effect. The limits of detection were 0.05-1.5 ng/L, the relative standard deviation ranged from 2.9 to 8.5%. Applying the developed method, seven BPs in Luoma Lake and its inflow rivers were analyzed. Only five BPs were detected in Luoma Lake and four BPs were detected in inflow rivers, and the concentrations of the detected BPs were determined BPA and BPF were the predominant BPs, and the concentration of BPA was the highest. This study involved multiple reactions and reactants, such as 4,4′-Methylenediphenol (cas: 620-92-8Formula: 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. 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.Formula: C13H12O2

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Associations of bisphenol exposure with thyroid hormones in pregnant women: a prospective birth cohort study in China was written by Huang, Huishen;Liang, Jun;Tang, Peng;Yu, Chuanxiang;Fan, Haoran;Liao, Qian;Long, Jinghua;Pan, Dongxiang;Zeng, Xiaoyun;Liu, Shun;Huang, Dongping;Qiu, Xiaoqiang. And the article was included in Environmental Science and Pollution Research.Application In Synthesis of 4,4′-Methylenediphenol The following contents are mentioned in the article:

Bisphenols are endocrine disruptor chems. that disrupt thyroid hormone homeostasis. However, evidence on the effects of bisphenol mixtures on thyroid hormones are insufficient. Therefore, the present study aimed to explore the effects of bisphenol substitutes and bisphenol mixtures on thyroid hormones during pregnancy. The study was conducted among 446 pregnant women in the Guangxi Zhuang Birth Cohort (GZBC), China. In multiple linear regressions, compared with the low-exposure group, bisphenol S (BPS) concentrations in the middle-exposure group led to a 10.90% (95% CI: – 18.16%, – 2.99%) decrease in triiodothyronine (T3) levels in the first trimester; tetrabromobisphenol A (TBBPA) levels in the middle-exposure group led to an 8.26% (95% CI: – 15.82%, – 0.01%) decrease in T3 levels in the first trimester; bisphenol B (BPB) levels in the middle-exposure group led to higher free thyroxine (FT4) levels (9.84%; 95% CI: 1.73%, 18.60%) in the second trimester; bisphenol F (BPF) in the middle-exposure group led to higher FT4 levels (8.59%, 95% CI: 0.53%, 17.31%) in the second trimester; and TBBPA levels in the high-exposure group led to a 9.39% (95% CI: 1.46%, 17.93%) increase in FT4 levels in the second trimester. The Bayesian kernel machine regression (BKMR) and restricted cubic spline (RCS) models showed a U-shaped dose-response relationship between bisphenol A (BPA) and free triiodothyronine (FT3) (p < 0.01) as well as BPS and FT4 (p < 0.05). Nonlinear relationships were also observed between the bisphenol mixture and FT3. Overall, maternal bisphenol exposure affected thyroid hormone levels during pregnancy. This study provides evidence that BPB, BPF, BPS, and TBBPA are unsafe substitutes for BPA, as well as the overall effect of bisphenols on adverse health in human beings. This study involved multiple reactions and reactants, such as 4,4′-Methylenediphenol (cas: 620-92-8Application In Synthesis of 4,4′-Methylenediphenol).

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. Secondary alcohols are easily oxidized without breaking carbon-carbon bonds only as far as the ketone stage. No further oxidation is seen except under very stringent conditions.Application In Synthesis of 4,4′-Methylenediphenol

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Alcohol – Wikipedia,
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Tuning the reactivity of permanganate by naturally occurring DNA bases: Enhanced efficiency of micropollutant abatement was written by Niu, Lijun;Li, Jianguo;Wang, Siqin;Manoli, Kyriakos;Zhang, Lei;Yu, Xin;Feng, Mingbao. 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:

The transformation of extracellular DNA (e.g., antibiotic resistance genes) in water has attracted increasing attention over the last decades. To date, the effect of the resulting byproducts (e.g., DNA bases) on the degradation of micropollutants by oxidants remains largely unknown. In this study, four DNA bases (i.e., deoxyadenosine (dA), deoxythymidine (dT), deoxycytidine (dC), and deoxyguanosine (dG)) were investigated as potential permanganate (Mn(VII)) activators for the oxidation of tetracycline (TC) in water. The dC exhibited the best performance, e.g., the first-order rate constant of TC increased from 0.082 min-1 in the absence of dC (i.e., Mn(VII) alone) to 0.290 min^-1 in the presence of 500μM dC (i.e., Mn(VII)/dC system). The degradation of three other emerging micopollutants (i.e., bisphenol F (BPF), bisphenol S (BPS), and methotrexate (MTX)) by Mn(VII)/dC was also greater than Mn(VII) alone. Multiple lines of evidence suggested that the synergistic effect of in-situ formed MnO2 colloids and Mn(VII) had a major role in the observed enhancement compared to radicals, Mn(VI), Mn(V) or Mn(III). The transformation products (TPs) of TC by Mn(VII) with and without dC were tentatively identified, from which the reaction pathways were proposed. Despite the high degradation of micropollutants by Mn(VII)/dC system, the majority of TPs were recalcitrant to biodegradation with multi-endpoint adverse health effects on different aquatic organisms, as indicated by in silico prediction software. Overall, this study unveiled the free DNA bases as in-situ Mn(VII) activators for removing emerging contaminants of global concern from water. However, the secondary environmental risks related to the TPs need to be considered in terms of water safety assessment. 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. 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.Related Products of 620-92-8

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Constructing magnetically separable manganese-based spinel ferrite from spent ternary lithium-ion batteries for efficient degradation of bisphenol A via peroxymonosulfate activation was written by Liang, Jianxing;Guo, Mingming;Xue, Yixin;Gu, Jia-nan;Li, Jingdong;Shi, Feng;Guo, Xin;Min, Xin;Jia, Jinping;Li, Kan;Sun, Tonghua. And the article was included in Chemical Engineering Journal (Amsterdam, Netherlands) in 2022.SDS of cas: 620-92-8 The following contents are mentioned in the article:

A magnetically separable manganese-based spinel ferrite (MFO-LIBs) is synthesized using spent ternary lithium-ion batteries (LIBs) for the first time. The ferrite is used to activate peroxymonosulfate (PMS) for the degradation of bisphenol A (BPA), thus meeting the strategy of “treating waste with waste′′. Surprisingly, its degradation activity was 2.8 times that of pure MnFe₂O₄ (MFO). The characterization of the structure and morphol. confirmed that the metals (e.g., Ni and Co) in spent ternary LIBs are doped into MFO, leading to MFO-LIBs with a larger sp. surface area (1.3 times that of MFO) and a higher ratio of Mn(II)/Mn(III) (1.4 times that of MFO) and Fe(II)/Fe(III) (1.3 times that of MFO). ESR and quenching experiments confirmed that surface-bound SO^•-₄, surface-bound •OH, O^•-₂ and ¹O₂ are the main reactive oxygen species (ROS) in BPA degradation Simultaneously, the improved degradation activity of the MFO-LIBs/PMS system can be ascribed to the increase in the number of ROS rather than the change in ROS types. Its outstanding performance can be maintained despite the high-salinity conditions (e.g., Cl^–, HCO^–₃ and H₂PO^–₄), high content of humic acid and alk. conditions. MFO-LIBs can be easily separated in the presence of an external magnetic field and has excellent universality (toward bisphenol F, 2,4-dichlorophenol and 2,4,6-trichlorophenol) and regeneration ability. More importantly, the cost of BPA degradation in the MFO-LIBs/PMS system is much lower than that of the related spinel ferrite activator/PMS systems (e.g., Co₂O₄/PMS and Mn₂O₄/PMS systems). This study involved multiple reactions and reactants, such as 4,4′-Methylenediphenol (cas: 620-92-8SDS of cas: 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. 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: 620-92-8

Referemce:
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts