Tag: 200-300

Recommanded Product: 4-tert-OctylphenolIn 2021, Tang, Shuqin;Chen, Yukun;Song, Guixian;Liu, Xiaotu;Shi, Yumeng;Xie, Qitong;Chen, Da published 《A Cocktail of Industrial Chemicals in Lipstick and Nail Polish: Profiles and Health Implications》. 《Environmental Science & Technology Letters》published the findings. The article contains the following contents:

Beauty products contain various industrial chems. to increase their functionality and appearance. The frequent use of beauty products may increase human exposure to industrial chems., but to date, their chem. components remain poorly characterized. Our work characterized the chem. components in lipstick and nail polish by screening for a total of 231 chems. from seven categories, including organophosphate esters (OPEs), phthalate esters (PAEs), non-PAE plasticizers, bisphenol analogs, parabens, UV stabilizers, and antioxidants. Their total concentrations ranged from 38.9 to 3810 μg/g (median of 193 μg/g) and from 18.6 to 1910 μg/g (307 μg/g) in lipstick (n = 34) and nail polish (n = 15), resp. The chem. compositions differed between lipstick and nail polish, but non-PAE plasticizers generally dominated over other groups of chems. A number of emerging plasticizers, OPEs, and UV stabilizers have rarely been reported in personal care products or environmental samples but were found at very high levels in beauty products, raising concern about their environmental release and human exposure risk. Although the employment of a hazard quotient approach suggested low health risks for exposure to industrial chems. from the use of beauty products, potential mixture effects from the chem. cocktail and occupational exposure to beauty products should not be overlooked. The experimental procedure involved many compounds, such as 4-tert-Octylphenol (cas: 140-66-9) .

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

Reference:
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts

Application In Synthesis of 2-Hexyl-1-decanol《Toward the Prediction and Control of Glass Transition Temperature for Donor-Acceptor Polymers》 was published in 2020. The authors were Zhang, Song;Alesadi, Amirhadi;Selivanova, Mariia;Cao, Zhiqiang;Qian, Zhiyuan;Luo, Shaochuan;Galuska, Luke;Teh, Catherine;Ocheje, Michael U.;Mason, Gage T.;St. Onge, P. Blake J.;Zhou, Dongshan;Rondeau-Gagne, Simon;Xia, Wenjie;Gu, Xiaodan, and the article was included in《Advanced Functional Materials》. The author mentioned the following in the article:

Semiconducting donor-acceptor (D-A) polymers have attracted considerable attention toward the application of organic electronic and optoelectronic devices. However, a rational design rule for making semiconducting polymers with desired thermal and mech. properties is currently lacking, which greatly limits the development of new polymers for advanced applications. Here, polydiketopyrrolopyrrole (PDPP)-based D-A polymers with varied alkyl side-chain lengths and backbone moieties are systematically designed, followed by investigating their thermal and thin film mech. responses. The exptl. results show a reduction in both elastic modulus and glass transition temperature (T_g) with increasing side-chain length, which is further verified through coarse-grained mol. dynamics simulations. Informed from exptl. results, a mass-per-flexible bond model is developed to capture such observation through a linear correlation between T_g and polymer chain flexibility. Using this model, a wide range of backbone T_g over 80°C and elastic modulus over 400 MPa can be predicted for PDPP-based polymers. This study highlights the important role of side-chain structure in influencing the thermomech. performance of conjugated polymers, and provides an effective strategy to design and predict T_g and elastic modulus of future new D-A polymers. 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.Application In Synthesis of 2-Hexyl-1-decanol This fatty acid also has transport properties and can form hydrogen bonds with other molecules.

Reference:
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts

HPLC of Formula: 140-66-9《Supramolecular confinement and photoluminescence enhancements of a conjugated polymer by hydrogen bonding in solid films》 was published in 2022. The authors were Liu, Yen-Hui;Huang, Cheng-Chung;Cheng, Chih-Chia;Yang, Arnold C.-M., and the article was included in《Materials Chemistry and Physics》. The author mentioned the following in the article:

Massive photoluminescence (PL) enhancements and blue shifts in solid films of a conjugated polymer (CP) were observed when supramol. confinement took effect under intermol. hydrogen bonding (HB) stabilized via paired diluent interactions. By blending a HB donor diluent of 4-octylphenol into poly [2-(thiophen-3-yl)-Et acetate], a CP with HB acceptor side-groups, the PL emissions and blue shift surged at a threshold diluent fraction (ϕd) corresponding to ~0.5 diluent mol. per CP monomers, attributed to mol. confinement by the hydrogen bonding. The confinement culminated, with the PL enhancements and blue shift achieving ~12 folds and ~40 nm resp., at ϕd ~1.5 diluent per monomer when almost all CP side-groups had formed supramol. bonding; thereafter it plateaued as the excess diluent precipitated into crystalline 2nd phase. It is inferred that restriction of CP motions under supramol. confinements can rigidify the backbones to lead to reduced self-trapping and enhanced PL, while at the same time the incurred modification of chain conformations disrupts conjugation lengths and gives rise to large blue shifts. To complete the study, the researchers used 4-tert-Octylphenol (cas: 140-66-9) .

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

Reference:
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts

Category: alcohols-buliding-blocksIn 2020, Wang, Mingyang;Li, Man;Yang, Shan;Xue, Xiao-Song;Wu, Xinxin;Zhu, Chen published 《Radical-mediated C-C cleavage of unstrained cycloketones and DFT study for unusual regioselectivity》. 《Nature Communications》published the findings. The article contains the following contents:

Herein, an efficient strategy for the direct C-C cleavage of cyclohexanones and cyclopentanones, e.g., I [X = O, CH₂; Z = CH₂, CH₂CH₂, (CH₂)₃; R = H, 4-Ph, 3,5-Cl₂, etc.], is reported. The cyclic C-C σ-bond is readily cleaved under mild conditions with the aid of an in situ formed side-chain aryl radical. D. functional theory calculations are carried out to shed light on the unusual regioselectivity of C-C bond cleavage. The reaction affords a variety of structurally diverse 3-coumaranones and indanones II that widely exist in natural products and bioactive mols., illustrating the synthetic value of this method.4-(2-Phenylpropan-2-yl)phenol (cas: 599-64-4) were involved in the experimental procedure.

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

Reference:
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts

HPLC of Formula: 599-64-4《A tiered high-throughput screening approach for evaluation of estrogen and androgen receptor modulation by environmentally relevant bisphenol A substitutes》 was published in 2020. The authors were Keminer, Oliver;Teigeler, Matthias;Kohler, Manfred;Wenzel, Andrea;Arning, Juergen;Kassner, Franziska;Windshuegel, Bjoern;Eilebrecht, Elke, and the article was included in《Science of the Total Environment》. The author mentioned the following in the article:

Bisphenol A (BPA) is a high production volume chem. with a broad application spectrum. As an endocrine disrupting chem., mainly by modulation of nuclear receptors (NRs), BPA has an adverse impact on organisms and is identified as a substance of very high concern under the European REACH regulation. Various BPA substitution candidates have been developed in recent years, however, information concerning the endocrine disrupting potential of these substances is still incomplete or missing. In this study, we intended to investigate the endocrine potential of BPA substitution candidates used in environmentally relevant applications such as thermal paper or epoxy resins. Based on an extensive literature and patent search, 33 environmentally relevant BPA substitution candidates were identified. In order to evaluate the endocrine potential of the BPA replacements, a screening cascade consisting of biochem. and cell-based assays was employed to investigate substance binding to the NRs estrogen receptor α and β, as well as androgen receptor, co-activator recruitment and NR-mediated reporter gene activation. In addition, a computational docking approach for retrospective prediction of receptor binding was carried out. Our results show that some BPA substitution candidates, for which so far no or only very few data were available, possess a substantial endocrine disrupting potential (TDP, BPZ), while several substances (BPS, D-8, DD70, DMP-OH, TBSA, D4, CBDO, ISO, VITC, DPA, and DOPO) did not reveal any NR binding. 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.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.

Reference:
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts

Thouennon, Erwan;Delfosse, Vanessa;Bailly, Remy;Blanc, Pauline;Boulahtouf, Abdelhay;Grimaldi, Marina;Barducci, Alessandro;Bourguet, William;Balaguer, Patrick published 《Insights into the activation mechanism of human estrogen-related receptor γ by environmental endocrine disruptors》 in 2019. The article was appeared in 《Cellular and Molecular Life Sciences》. They have made some progress in their research.Computed Properties of C15H16O The article mentions the following:

The estrogen-related receptor γ (ERRγ, NR3B3) is a constitutively active nuclear receptor which has been proposed to act as a mediator of the low-dose effects of a number of environmental endocrine-disrupting chems. (EDCs) such as the xenoestrogen bisphenol-A (BPA). To better characterize the ability of exogenous compounds to bind and activate ERRγ, we used a combination of cell-based, biochem., structural and computational approaches. A purposely created stable cell line allowed for the determination of the EC50s for over 30 environmental ERRγ ligands, including previously unknown ones. Interestingly, affinity constants (Kds) of the most potent compounds measured by isothermal titrationcalorimetry were in the 50-500 nM range, in agreement with their receptor activation potencies. Crystallog. anal. of the interaction between the ERRγ ligand-binding domain (LBD) and compounds of the bisphenol, alkylphenol and naphthol families revealed a partially shared binding mode and minimal alterations of the receptor conformation upon ligand binding. Further biophys. characterizations coupled to mol. dynamics simulations suggested a mechanism through which ERRγ ligands would exhibit their agonistic properties by preserving the transcriptionally active form of the receptor while rigidifying some loop regions with associated functions. This unique mechanism contrasts with the classical one involving a ligand-induced repositioning and stabilization of the C-terminal activation helix H12. The experimental procedure involved many compounds, such as 4-(2-Phenylpropan-2-yl)phenol (cas: 599-64-4) .

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

Reference:
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts

Name: 4-(2-Phenylpropan-2-yl)phenolIn 2021, Yue, Wenlong;Yin, Chao-Fan;Sun, Limin;Zhang, Jie;Xu, Ying;Zhou, Ning-Yi published 《Biodegradation of bisphenol-A polycarbonate plastic by Pseudoxanthomonas sp. strain NyZ600》. 《Journal of Hazardous Materials》published the findings. The article contains the following contents:

Bisphenol-A polycarbonate (PC) is a widely used engineering thermoplastic and its release has caused damage to the ecosystem. Microbial degradation of plastic represents a sustainable approach for PC reduction In this study, a bacterial strain designated Pseudoxanthomonas sp. strain NyZ600 capable of degrading PC was isolated from activated sludge by using di-Ph carbonate as a surrogate substrate. Within a 30-day period of incubating with strain NyZ600, PC films were analyzed with at. force microscopy, scanning electron microscope, water contact angle, XPS, fourier transform IR spectroscopy, differential scan calorimeter and thermogravimetric anal. technique. The analyses results indicated that the treated PC films were bio-deteriorated and formed some “corrosion pits” on the PC film surface. In addition, strain NyZ600 performed broad depolymerization of PC indicated by the reduction of Mn from 23.55 to 16.75 kDa and Mw from 45.67 to 31.97 kDa and two degradation products bisphenol A and 4-cumylphenol (the two monomers of PC) were also found, which established that PC were biodegraded by strain NyZ600. Combing all above results, it is clear that the strain NyZ600 can degrade PC which provides a unique example for bacterial degradation of PC and a feasibility for the removal of PC waste.4-(2-Phenylpropan-2-yl)phenol (cas: 599-64-4) were involved in the experimental procedure.

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

Reference:
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts

Reference of 2-Hexyl-1-decanol《Characterization of the physicochemical changes and volatile compound fingerprinting during the chicken sugar-smoking process》 was published in 2021. The authors were Chang, Hong;Wang, Ying;Xia, Qiang;Pan, Daodong;He, Jun;Zhang, Haimeng;Cao, Jinxuan, and the article was included in《Poultry Science》. The author mentioned the following in the article:

Sugar-smoking contributes to improving flavor attributes of meat products. However, there is rather limited information concerning the relationship between sugar-smoking process parameters and volatile compound (VC) fingerprinting as well as related quality attributes of sugar-smoked chicken. In this work, the changes in VC across the whole sugar-smoking process were determined and analyzed and physicochem. properties, free fatty acid, thiobarbituric acid reactive substances values, and E-nose were also performed to characterize the quality properties of sugar-smoked chicken breast (CB) and chicken skin (CS). Results suggested that a higher amount (P < 0.05) of total VC was observed in CS compared with CB during the whole processing, which may be correlated with higher thiobarbituric acid reactive substances values, and higher polyunsaturated fatty acid/saturated fatty acid ratio. According to E-nose anal., the volatile flavor is clearly separated in the sugar-smoking stage. Volatile fingerprinting results revealed that heterocycles were the characteristic flavor formed during sugar-smoking process and hexanal, nonanal, furfural, 5-methyl-2-furancarboxaldehyde, and 2-acetyl-5-methylfuran were the major volatiles of the CS, which was closely related to lipid oxidation and caramelization reaction. Above all, the flavor of sugar-smoked chicken was mainly derived from CS and sugar-smoked process improved the flavor of CS. This study could provide theor. guidance for regulation of the color and flavor of sugar-smoked chicken and further promote the development of the industry. And 2-Hexyl-1-decanol (cas: 2425-77-6) was used in the research process.

2-Hexyl-1-decanol(cas: 2425-77-6) is a branched alcohol. It is one of the constituent of the essential oil, extracted from the roots of Adiantum flabellulatum. Reference of 2-Hexyl-1-decanol

Reference:
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts

Today I want to share an article with you. The article is 《Performance evaluation of ceramic membrane bioreactor: effect of operational parameters on micropollutant removal and membrane fouling》,you can find this article in 《Environmental Science and Pollution Research》. The following contents are mentioned:

This paper presents the removal of nine potential endocrine disruptors including pesticides, pharmaceuticals and industrial chems. using a submerged membrane bioreactor (MBR) system. Two lab-scale submerged MBRs having ceramic membranes were operated at three different sludge retention times (SRT: 15, 45, 90 days) and two hydraulic retention times (HRT: 12, 6 h) and the effects of SRT and HRT on both micropollutant removal and membrane fouling were investigated. While the effect of SRT and HRT change was observed on the removal of atrazine, fluoxetine, penconazole, no significant change was detected for the other micropollutants studied. It was determined that physicochem. properties such as distribution coefficient (LogD) and hydrophobicity of micropollutants are also effective on the removal efficiency of micropollutants. High removal efficiencies (≥ 97.5%) were observed for hydrophobic pollutants (logD > 3.2) except for penconazole (72.1%) and for hydrophilic pollutants (logD < 3.2) except for atrazine (42.5%). Membrane fouling was significantly affected by different operational parameters applied, with the slowest fouling occurring at 45 days of SRT and 12 h of HRT. However, micropollutant addition did not have a significant effect on membrane fouling. It has been shown that the simultaneous and effective treatment performance for micropollutants makes the membrane bioreactor system a promising wastewater treatment process. To complete the study, the researchers used 4-tert-Octylphenol (cas: 140-66-9) .

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

Reference:
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts

Yasui, Masamichi;Hanaya, Kengo;Sugai, Takeshi;Higashibayashi, Shuhei published 《Metal-free thermal organocatalytic pinacol coupling of arylaldehydes using an isonicotinate catalyst with bis(pinacolato)diboron》 in 2021. The article was appeared in 《RSC Advances》. They have made some progress in their research.Related Products of 579-43-1 The article mentions the following:

The metal-free thermal organocatalytic pinacol coupling of arylaldehydes has been developed. The intermol. coupling of arylaldehydes catalyzed by t-Bu isonicotinate with bis(pinacolato)diboron as the co-reducing agent afforded 1,2-diphenylethane-1,2-diols. This reaction was also applicable to the intramol. coupling of 1,1′-biphenyl-2,2′-dicarbaldehydes to afford 9,10-dihydrophenanthrene-9,10-diols. Various functional groups were tolerated under this coupling condition.rel-(1R,2S)-1,2-Diphenylethane-1,2-diol (cas: 579-43-1) were involved in the experimental procedure.

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

Reference:
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts