Month: December 2022

Thermokinetic analysis and product characterization of Medium Density Fiberboard pyrolysis was written by Aslan, Dilan Irmak;Ozogul, Bugce;Ceylan, Selim;Geyikci, Feza. And the article was included in Bioresource Technology in 2018.HPLC of Formula: 5444-75-7 The following contents are mentioned in the article:

This study investigates the pyrolysis of Medium D. Fiberboard (MDF) as a potential waste management solution Thermal behavior of MDF was analyzed via TG/DSC. The primary decomposition step occurred between 190°C and 425°C. Evolved gaseous products over this step were evaluated by a FTIR spectrometer coupled with TGA. Peaks for phenolic, alcs. and aldehydes were detected at the maximum decomposition temperature Py-GC/MS anal. revealed phenols, ketones and cyclic compounds as the primary non-condensable pyrolysis products. The kinetics of pyrolysis were investigated by the widely applied Distributed Activation Energy Model, resulting in an average activation energy and pre-exponential factor of 127.40 kJ mol^-1 and 8.4E+11. The results of this study suggest that pyrolyzing MDF could potentially provide renewable fuels and prevent environmental problems related with MDF disposal. This study involved multiple reactions and reactants, such as 2-Ethylhexyl benzoate (cas: 5444-75-7HPLC of Formula: 5444-75-7).

2-Ethylhexyl benzoate (cas: 5444-75-7) belongs to esters. Esters typically have a pleasant smell; those of low molecular weight are commonly used as fragrances and are found in essential oils and pheromones. Liquid esters of low volatility serve as softening agents for resins and plastics. Esters also include many industrially important polymers. Polymethyl methacrylate is a glass substitute sold under the names Lucite and Plexiglas; polyethylene terephthalate is used as a film (Mylar) and as textile fibres sold as Terylene, Fortrel, and Dacron.HPLC of Formula: 5444-75-7

Referemce:
Ester – Wikipedia,
Ester – an overview | ScienceDirect Topics

An Orthogonal Dynamic Covalent Polymer Network with Distinctive Topology Transformations for Shape- and Molecular Architecture Reconfiguration was written by Miao, Wusha;Yang, Bo;Jin, Binjie;Ni, Chujun;Feng, Haijun;Xue, Yaoting;Zheng, Ning;Zhao, Qian;Shen, Youqing;Xie, Tao. And the article was included in Angewandte Chemie, International Edition in 2022.Computed Properties of C11H22O2 The following contents are mentioned in the article:

Bond exchange in a typical dynamic covalent polymer network allows access to macroscopic shape reconfigurability, but the network architecture is not altered. An alternative possibility is that the network architecture can be designed to switch to various topol. states corresponding to different material properties. Achieving both in one network can expand the material scope, but their intrinsically conflicting mechanisms make it challenging. We design a dynamic covalent network that can undergo two orthogonal topol. transformations, namely transesterification on the branched chains and olefin metathesis on the mainframe. This allows independent control of the macroscopic shape and mol. architecture. With this design, we illustrate a bottlebrush network with programmable shape and spatially definable mech. properties. Our strategy paves a way to on-demand regulation of network polymers. This study involved multiple reactions and reactants, such as Isopentyl hexanoate (cas: 2198-61-0Computed Properties of C11H22O2).

Isopentyl hexanoate (cas: 2198-61-0) belongs to esters. Esters are also usually derived from carboxylic acids. It may also be obtained by reaction of acid anhydride or acid halides with alcohols or by the reaction of salts of carboxylic acids with alkyl halides. Esters are more polar than ethers but less polar than alcohols. They participate in hydrogen bonds as hydrogen-bond acceptors, but cannot act as hydrogen-bond donors, unlike their parent alcohols. This ability to participate in hydrogen bonding confers some water-solubility.Computed Properties of C11H22O2

Referemce:
Ester – Wikipedia,
Ester – an overview | ScienceDirect Topics

PLD2-PI(4,5)P2 interactions in fluid phase membranes: Structural modeling and molecular dynamics simulations was written by Han, Kyungreem;Pastor, Richard W.;Fenollar-Ferrer, Cristina. And the article was included in PLoS One in 2020.Synthetic Route of C39H76NO8P The following contents are mentioned in the article:

Interaction of phospholipase D2 (PLD2) with phosphatidylinositol (4,5)-bisphosphate (PIP2) is regarded as the critical step of numerous physiol. processes. Here we build a full-length model of human PLD2 (hPLD2) combining template-based and ab initio modeling techniques and use microsecond all-atom mol. dynamics (MD) simulations of the protein in contact with a complex membrane to determine hPLD2-PIP2 interactions. MD simulations reveal that the intermol. interactions preferentially occur between specific PIP2 phosphate groups and hPLD2 residues; the most strongly interacting residues are arginine at the pbox consensus sequence (PX) and pleckstrin homol. (PH) domain. Interaction networks indicate formation of clusters at the protein-membrane interface consisting of amino acids, PIP2, and 1-palmitoyl-2-oleoyl-sn-glycero-3-phosphatidic acid (POPA); the largest cluster was in the PH domain. This study involved multiple reactions and reactants, such as (2R,9Z)-1-(((2-Aminoethoxy)(hydroxy)phosphoryl)oxy)-3-(palmitoyloxy)propan-2-yl oleate (cas: 26662-94-2Synthetic Route of C39H76NO8P).

(2R,9Z)-1-(((2-Aminoethoxy)(hydroxy)phosphoryl)oxy)-3-(palmitoyloxy)propan-2-yl oleate (cas: 26662-94-2) belongs to esters. Esters are also usually derived from carboxylic acids. It may also be obtained by reaction of acid anhydride or acid halides with alcohols or by the reaction of salts of carboxylic acids with alkyl halides. Because of their lack of hydrogen-bond-donating ability, esters do not self-associate. Consequently, esters are more volatile than carboxylic acids of similar molecular weight.Synthetic Route of C39H76NO8P

Referemce:
Ester – Wikipedia,
Ester – an overview | ScienceDirect Topics

Qualitative organic analysis. I. Identification of drugs by principal components analysis of standardized thin-layer chromatographic data in four eluent systems was written by Musumarra, Giuseppe;Scarlata, Giuseppe;Cirma, Giuseppe;Romano, Guido;Palazzo, Silvana;Clementi, Sergio;Giulietti, Gianfranco. And the article was included in Journal of Chromatography in 1985.Related Products of 5003-48-5 The following contents are mentioned in the article:

Identification of drugs by principal component anal. of standardized retention factor (R_F) values in 4 eluent systems, [EtOAc [141-78-6]-MeOH [67-56-1]-30% NH₄OH (85:10:15), cyclohexane  [110-82-7]-PhMe [108-88-3]-Et₂NH [109-89-7] (65:25:10), EtOAc-CHCl₃  [67-66-3] (50:50), and Me₂CO [67-64-1] with the plate dipped in KOH solution] provided a 2-component model which accounts for 73% of the total variance. The scores plot allowed the restriction of the range of inquiry to a few candidates. This result is of great practical significance in anal. toxicol., especially when account is taken of the cost, the time, the anal. instrumentation and the simplicity of the calculations required by the method. This study involved multiple reactions and reactants, such as 4-Acetamidophenyl 2-acetoxybenzoate (cas: 5003-48-5Related Products of 5003-48-5).

4-Acetamidophenyl 2-acetoxybenzoate (cas: 5003-48-5) belongs to esters. Carboxylic acid esters of low molecular weight are colourless, volatile liquids with pleasant odours, slightly soluble in water. Cyclic esters are called lactones, regardless of whether they are derived from an organic or inorganic acid. One example of an organic lactone is γ-valerolactone.Related Products of 5003-48-5

Referemce:
Ester – Wikipedia,
Ester – an overview | ScienceDirect Topics

Selective Promotion of Adhesion of Shewanella oneidensis on Mannose-Decorated Glycopolymer Surfaces was written by Young, Thomas D.;Liau, Walter T.;Lee, Calvin K.;Mellody, Michael;Wong, Gerard C. L.;Kasko, Andrea M.;Weiss, Paul S.. And the article was included in ACS Applied Materials & Interfaces in 2020.Product Details of 604-69-3 The following contents are mentioned in the article:

Using glycopolymer surfaces, the authors have stimulated Shewanella oneidensis bacterial colonization and induced where the bacteria attach on a mol. pattern. When the Me α-D-mannopyranoside competitor was codeposited with the cell culture, however, the mannose-based polymer was not significantly different from bare gold surfaces. The necessity for equilibration between Me α-D-mannopyranoside and the cell culture to remove the enhancement suggests that the retention of cells on glycopolymer surfaces is kinetically controlled and is not a thermodn. result of the cluster glycoside effect. The MshA lectin appears to facilitate the improved adhesion observed The findings that the surfaces studied here can induce stable initial attachment and influence the ratio of bacterial strains on the surface may be applied to harness useful microbial communities. This study involved multiple reactions and reactants, such as (2S,3R,4S,5R,6R)-6-(Acetoxymethyl)tetrahydro-2H-pyran-2,3,4,5-tetrayl tetraacetate (cas: 604-69-3Product Details of 604-69-3).

(2S,3R,4S,5R,6R)-6-(Acetoxymethyl)tetrahydro-2H-pyran-2,3,4,5-tetrayl tetraacetate (cas: 604-69-3) belongs to esters. Esters are widespread in nature and are widely used in industry. In nature, fats are in general triesters derived from glycerol and fatty acids. Esters are responsible for the aroma of many fruits, including apples, durians, pears, bananas, pineapples, and strawberries. Cyclic esters are called lactones, regardless of whether they are derived from an organic or inorganic acid. One example of an organic lactone is γ-valerolactone.Product Details of 604-69-3

Referemce:
Ester – Wikipedia,
Ester – an overview | ScienceDirect Topics

Weak Acid Permeation in Synthetic Lipid Vesicles and Across the Yeast Plasma Membrane was written by Gabba, Matteo;Frallicciardi, Jacopo;van ‘t Klooster, Joury;Henderson, Ryan;Syga, Lukasz;Mans, Robert;van Maris, Antonius J. A.;Poolman, Bert. And the article was included in Biophysical Journal in 2020.Product Details of 26662-94-2 The following contents are mentioned in the article:

The authors present a fluorescence-based approach for determination of the permeability of small mols. across the membranes of lipid vesicles and living cells. With properly designed experiments, the method allows the authors to assess the membrane phys. properties both in vitro and in vivo. The permeability of weak acids increases in the order of benzoic > acetic > formic > lactic, both in synthetic lipid vesicles and the plasma membrane of Saccharomyces cerevisiae, but the permeability is much lower in yeast (one to two orders of magnitude). A relation between the mol. permeability and the saturation of the lipid acyl chain (i.e., lipid packing) in the synthetic lipid vesicles. were observed By analyzing wild-type yeast and a manifold knockout strain lacking all putative lactic acid transporters, the yeast plasma membrane is impermeable to lactic acid on timescales up to �.5 h. This study involved multiple reactions and reactants, such as (2R,9Z)-1-(((2-Aminoethoxy)(hydroxy)phosphoryl)oxy)-3-(palmitoyloxy)propan-2-yl oleate (cas: 26662-94-2Product Details of 26662-94-2).

(2R,9Z)-1-(((2-Aminoethoxy)(hydroxy)phosphoryl)oxy)-3-(palmitoyloxy)propan-2-yl oleate (cas: 26662-94-2) belongs to esters. Esters perform as high-grade solvents for a broad array of plastics, plasticizers, resins, and lacquers, and are one of the largest classes of synthetic lubricants on the commercial market. Many esters have the potential for conformational isomerism, but they tend to adopt an s-cis (or Z) conformation rather than the s-trans (or E) alternative, due to a combination of hyperconjugation and dipole minimization effects. The preference for the Z conformation is influenced by the nature of the substituents and solvent, if present. Lactones with small rings are restricted to the s-trans (i.e. E) conformation due to their cyclic structure.Product Details of 26662-94-2

Referemce:
Ester – Wikipedia,
Ester – an overview | ScienceDirect Topics

In situ investigation of formation kinetics of microporous structure in PVDF thin films prepared via thermally-induced phase separation (TIPS): Effects of film thickness and polymer concentration was written by Yang, Bin;Yu, Yang-nan;Pan, Yang;Wang, Shu-qing;Xu, Xiang;Wang, Ying-ying;Qian, Jia-sheng;Xia, Ru;Zhang, Peng;Shi, You;Tu, You-lei. And the article was included in Nano Select in 2021.Application In Synthesis of Diphenyl carbonate The following contents are mentioned in the article:

In this research, series of PVDF microporous films with various polymer concentrations and thickness were prepared through thermally-induced phase separation in air condition with di-Ph carbonate as the diluent. Effects of polymer concentration and film thickness on the formation kinetics of microporous structure of PVDF thin films were in situ investigated via TII technique. The instantaneous heat conduction inside the films during film formation was also evaluated. Two types of parameter models were adopted in order to disclose the time and location dependence of TIPS film solidification kinetics, resp. Hierarchical microstructures, crystallization behavior and thermal properties of the TIPS films were also characterized by SEM, DSC, and TGA, resp. The current study could supply an insight into the fabrication of PVDF microporous films with target microstructure and desirable performance. This study involved multiple reactions and reactants, such as Diphenyl carbonate (cas: 102-09-0Application In Synthesis of Diphenyl carbonate).

Diphenyl carbonate (cas: 102-09-0) belongs to esters. Carboxylic acid esters of low molecular weight are colourless, volatile liquids with pleasant odours, slightly soluble in water. Liquid esters of low volatility serve as softening agents for resins and plastics. Esters also include many industrially important polymers. Polymethyl methacrylate is a glass substitute sold under the names Lucite and Plexiglas; polyethylene terephthalate is used as a film (Mylar) and as textile fibres sold as Terylene, Fortrel, and Dacron.Application In Synthesis of Diphenyl carbonate

Referemce:
Ester – Wikipedia,
Ester – an overview | ScienceDirect Topics

Polybenzyls from Gastrodia elata, their agonistic effects on melatonin receptors and structure-activity relationships was written by Chen, Si-Yue;Geng, Chang-An;Ma, Yun-Bao;Huang, Xiao-Yan;Yang, Xiao-Tong;Su, Li-Hua;He, Xiao-Feng;Li, Tian-Ze;Deng, Zhen-Tao;Gao, Zhen;Zhang, Xue-Mei;Chen, Ji-Jun. And the article was included in Bioorganic & Medicinal Chemistry in 2019.Name: (2S,3R,4S,5R,6R)-6-(Acetoxymethyl)tetrahydro-2H-pyran-2,3,4,5-tetrayl tetraacetate The following contents are mentioned in the article:

Gastrodia elata is a famous traditional Chinese herb with medicinal and edible application. In this study, nine polybenzyls (1-9), including six new ones (2-5, 7 and 9), were isolated from the EtOAc extract of G. elata. Five compounds 1, 3, 4, 6 and 8 were found to activate melatonin receptors. Especially, compound 1 showed agonistic effects on MT₁ and MT₂ receptors with EC₅₀ values of 237 and 244 μM. For better understanding their structure-activity relationships (SARs), ten polybenzyl analogs were further synthesized and assayed for their activities on melatonin receptors. Preliminary SARs study suggested that two para-hydroxy groups were the key pharmacophore for maintaining activity. Mol. docking simulations verified that compound 1 could strongly interact with MT₂ receptor by bonding to Phe 118, Gly 121, His 208, Try 294 and Ala 297 residues. This study involved multiple reactions and reactants, such as (2S,3R,4S,5R,6R)-6-(Acetoxymethyl)tetrahydro-2H-pyran-2,3,4,5-tetrayl tetraacetate (cas: 604-69-3Name: (2S,3R,4S,5R,6R)-6-(Acetoxymethyl)tetrahydro-2H-pyran-2,3,4,5-tetrayl tetraacetate).

(2S,3R,4S,5R,6R)-6-(Acetoxymethyl)tetrahydro-2H-pyran-2,3,4,5-tetrayl tetraacetate (cas: 604-69-3) belongs to esters. Esters typically have a pleasant smell; those of low molecular weight are commonly used as fragrances and are found in essential oils and pheromones. Esterification is the general name for a chemical reaction in which two reactants (typically an alcohol and an acid) form an ester as the reaction product. Esters are common in organic chemistry and biological materials.Name: (2S,3R,4S,5R,6R)-6-(Acetoxymethyl)tetrahydro-2H-pyran-2,3,4,5-tetrayl tetraacetate

Referemce:
Ester – Wikipedia,
Ester – an overview | ScienceDirect Topics

Study on relation of dissolution of benorilate tablets with drug concentration in human plasma was written by Chen, Zongdai;Du, Kairong;Zeng, Jingze;Zhang, Da;Deng, Fu. And the article was included in Yaowu Fenxi Zazhi in 2002.Reference of 5003-48-5 The following contents are mentioned in the article:

The relation between dissolution of benorilate tablets and benorilate concentration in human plasma was analyzed. Sodium lauryl sulfate (1%) solution was used as the medium, and paddles method was used with sampling after 45 min. UV spectrophotometry was adapted for the determination of dissolution of benorilate tablets. The concentration of benorilate in human plasma was estimated by using a HPLC method which was developed to determine the hydrolytic products of benorilate paracetamol and salicylic acid. p-Dimethylaminobenzaldehyde was used as the internal standard The relationship between dissolution and concentration of benorilate in human plasma was treated statistically. A good relationship existed between the dissolution and pharmacokinetic parameters AUC, C_max [r=0.968; 0.985 (n=5), r_0.01,3=0.959]. The method could control the sample quality effectively. This study involved multiple reactions and reactants, such as 4-Acetamidophenyl 2-acetoxybenzoate (cas: 5003-48-5Reference of 5003-48-5).

4-Acetamidophenyl 2-acetoxybenzoate (cas: 5003-48-5) belongs to esters. Esters are also usually derived from carboxylic acids. It may also be obtained by reaction of acid anhydride or acid halides with alcohols or by the reaction of salts of carboxylic acids with alkyl halides. Because of their lack of hydrogen-bond-donating ability, esters do not self-associate. Consequently, esters are more volatile than carboxylic acids of similar molecular weight.Reference of 5003-48-5

Referemce:
Ester – Wikipedia,
Ester – an overview | ScienceDirect Topics

Nantucket pine tip moth, Rhyacionia frustrana: identification of two sex pheromone components was written by Hill, Ada S.;Berisford, C. Wayne;Brady, U. Eugene;Roelofs, Wendell L.. And the article was included in Journal of Chemical Ecology in 1981.Quality Control of (E)-Dodeca-9,11-dien-1-yl acetate The following contents are mentioned in the article:

Two compounds identified as components of the sex pheromone system of R. frustrana are (E)-9-dodecen-1-yl acetate (I) [35148-19-7] and (E)-9,11-dodecadien-1-yl acetate (II) [50767-78-7], which were found in female gland extracts in the ratio of 96:4, resp. The identifications were based on chem. and instrumental anal., electroantennogram studies, and field trapping tests. The optimum ratio for trapping male R. frustrana was from 95:5 to 97.5:2.5 (I:II), when dispensed from rubber septa at a loading of âˆ?000 μg/lure. In addition to these 2 compounds, evidence was obtained for the presence of dodecan-1-ol [112-53-8] and (E)-9-dodecen-1-ol [35237-62-8] in female tip extracts and in female effluvium, and for dodecan-1-yl acetate [112-66-3] in female tip extracts This study involved multiple reactions and reactants, such as (E)-Dodeca-9,11-dien-1-yl acetate (cas: 50767-78-7Quality Control of (E)-Dodeca-9,11-dien-1-yl acetate).

(E)-Dodeca-9,11-dien-1-yl acetate (cas: 50767-78-7) belongs to esters. Esters are widespread in nature and are widely used in industry. In nature, fats are in general triesters derived from glycerol and fatty acids. Esters are responsible for the aroma of many fruits, including apples, durians, pears, bananas, pineapples, and strawberries. Esters are more polar than ethers but less polar than alcohols. They participate in hydrogen bonds as hydrogen-bond acceptors, but cannot act as hydrogen-bond donors, unlike their parent alcohols. This ability to participate in hydrogen bonding confers some water-solubility.Quality Control of (E)-Dodeca-9,11-dien-1-yl acetate

Referemce:
Ester – Wikipedia,
Ester – an overview | ScienceDirect Topics