Tag: 100-200

On March 31, 1980, Devillers, Jean; Houalla, Doureid; Bonnet, Jean Jacques; Wolf, Robert published an article.Name: 2,2′-(tert-Butylazanediyl)diethanol The title of the article was Phosphite electrophilicity exploration: crystal and molecular structure of an eight-membered ring-containing tetrahydro-4H-1,3,6,2-dioxazaphosphocine molecule. And the article contained the following:

The mol. structure of the title compound I, determination by x-ray anal., indicates a boat-chair conformation for the rings. The transannular P-N distance is less than the sum of Van der Waals radii. CNDO/2 calculations and NMR spectra indicate that the weak transannular interaction is not an electron donation of the N atom to the P atom, but has electrostatic character. The experimental process involved the reaction of 2,2′-(tert-Butylazanediyl)diethanol(cas: 2160-93-2).Name: 2,2′-(tert-Butylazanediyl)diethanol

The Article related to crystal structure dioxazaphosphocine, transannular phosphorus nitrogen interaction, phosphite macrocyclic structure, Physical Organic Chemistry: General and other aspects.Name: 2,2′-(tert-Butylazanediyl)diethanol

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On August 31, 2022, Hanifah, Abu; Firmanto, Hendy; Putri, Sastia Prama; Fukusaki, Eiichiro published an article.Recommanded Product: 2,3-Dihydroxypropanoic acid The title of the article was Unique metabolite profiles of Indonesian cocoa beans from different origins and their correlation with temperature. And the article contained the following:

Chocolate flavors vary depending on the origin of the cocoa beans used. Differences in soil, microorganisms, and environmental factors contribute to the formation of flavor precursors in cocoa beans. During cocoa bean fermentation, environmental temperature has been shown to alter metabolite concentrations However, the correlation between the metabolite profile of cocoa beans and the temperature of their region of origin has not been fully defined. In this study, the metabolite profiles of Indonesian cocoa beans of various origins were evaluated using gas chromatog./mass spectrometry-based anal., and were found to differ depending on the origin of the bean. Subsequently, the correlation between metabolite profile and environmental temperature of the origin was assessed using orthogonal projection to latent structure regression (OPLS-R) anal. The anal. revealed that seven metabolites were associated with temperature: γ-aminobutyric acid (GABA), ethanolamine, glycerol, isocitric acid + citric acid, succinic acid, malic acid, and saccharic acid. The findings of this study will be valuable to chocolate industries for the production of single-origin chocolates. The experimental process involved the reaction of 2,3-Dihydroxypropanoic acid(cas: 473-81-4).Recommanded Product: 2,3-Dihydroxypropanoic acid

The Article related to cocoa bean succinic malic acid metabolite temperature, cocoa beans, correlation, environmental factors, fermented, metabolite profile, metabolomics, raw, Food and Feed Chemistry: Beverages and other aspects.Recommanded Product: 2,3-Dihydroxypropanoic acid

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On July 12, 2022, Zaitsu, Kei; Asano, Tomomi; Kawakami, Daisuke; Chang, Jiarui; Hisatsune, Kazuaki; Taniguchi, Masaru; Iguchi, Akira published an article.Safety of 3-Hydroxyphenylacetic acid The title of the article was Metabolomics and Data-Driven Bioinformatics Revealed Key Maternal Metabolites Related to Fetal Lethality via Di(2-ethylhexyl)phthalate Exposure in Pregnant Mice. And the article contained the following:

We performed serum metabolome anal. of di(2-ethylhexyl)phthalate (DEHP)-exposed and control pregnant mice. Pregnant mice (n = 5) were fed a DEHP-containing diet (0.1% or 0.2% DEHP) or a normal diet (control) from gestational days 0-18. After maternal exposure to 0.2% DEHP there were no surviving fetuses, indicating its strong fetal lethality. There were no significant differences in the numbers of fetuses and placentas between the 0.1% DEHP and control groups, although fetal viability differed significantly between them, suggesting that maternal exposure to 0.1% DEHP could inhibit fetal growth. Metabolomics successfully detected 169 metabolites in serum. Principal component anal. (PCA) demonstrated that the three groups were clearly separated on PCA score plots. The biol. interpretation of PC1 was fetal lethality, whereas PC2 meant metabolic alteration of pregnant mice via DEHP exposure without fetal lethality. In particular, the first component was significantly correlated with fetal viability, demonstrating that maternal metabolome changes via DEHP exposure were strongly related to fetal lethality. Levels of some amino acids were significantly increased in the DEHP-exposed groups, whereas those of some fatty acids, nicotinic acid, and 1,5-anhydroglucitol were significantly decreased in the DEHP groups. DEHP-induced increases in glycine levels could cause fetal neurol. disorders, and decreases in nicotinic acid could inhibit fetal growth. In addition, a machine-learning Random forest could determine 16 potential biomarkers of DEHP exposure, and data-driven network anal. revealed that nicotinic acid was the most influential hub metabolite in the metabolic network. These findings will be useful for understanding the effects of DEHP on the maternal metabolome in pregnancy and their relationship to fetal lethality. The experimental process involved the reaction of 3-Hydroxyphenylacetic acid(cas: 621-37-4).Safety of 3-Hydroxyphenylacetic acid

The Article related to metabolome fetus pregnancy serum metabolite dehp, Placeholder for records without volume info and other aspects.Safety of 3-Hydroxyphenylacetic acid

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On January 31, 2022, Vrancheva, Radka; Dincheva, Ivayla; Aneva, Ina; Georgiev, Vasil; Pavlov, Atanas published an article.Application of 473-81-4 The title of the article was GC-MS-based metabolite profiling of wild and in vitro growing plants of Satureja montana L.. And the article contained the following:

Satureja montana L. is used as a traditional culinary spice in the Balkan Peninsula cuisine, as well as in the folk and traditional medicine for treatment of different diseases. The supply of secondary metabolites from naturally growing plants has many restrictions, such as biomass availability and variations in the chem. composition, which is most strongly affected by seasonal and environmental- mental factors. These disadvantages could be overcome by cultivating plants in optimized and controlled in vitro conditions. The purpose of the current study was to compare the phytochem. compositions of newly developed in vitro plants and intact plants of S. montana used for production of secondary metabolites. The GC-MS anal. revealed the presence of a number of primary (carbohydrates, amino acids, organic acids and lipids) and secondary metabolites (phenolic acids) with pharmacol. and biol. activities beneficial to humans. The results revealed that in vitro S. montana plants are a potential biotechnol. matrix for the production of valuable biol. active substances for the food, pharmaceutical and cosmetic industries. The experimental process involved the reaction of 2,3-Dihydroxypropanoic acid(cas: 473-81-4).Application of 473-81-4

The Article related to satureja primary secondary metabolite phytochem, Placeholder for records without volume info and other aspects.Application of 473-81-4

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On November 18, 1980, Liepins, E.; Popelis, J.; Birgele, I.; Urtane, I.; Zelcans, G.; Lukevics, E. published an article.Recommanded Product: 2160-93-2 The title of the article was The conformations of N-substituted 2,2-diaryl-1,3-dioxa-6-aza-2-silacyclooctanes in solution. And the article contained the following:

1H, 13C and 29Si NMR data obtained for 2,2-diaryl-1,3-dioxa-6-aza-2-silacyclooctanes indicate the occurrence in solution of an equilibrium between the conformations boat-boat ⇄ chair-chair which are determined by the presence or absence of a transannular N → Si bond. The equilibrium is greatly affected by the electronic and steric effects of the N- and Si-substituents. The experimental process involved the reaction of 2,2′-(tert-Butylazanediyl)diethanol(cas: 2160-93-2).Recommanded Product: 2160-93-2

The Article related to conformation diaryldioxaazasilacyclooctane nmr, Physical Organic Chemistry: Stereochemistry and other aspects.Recommanded Product: 2160-93-2

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On November 30, 2022, Kulkarni, Jayant; Sharma, Sandeep; Sahoo, Sripati A.; Mishra, Shefali; Nikam, Tukaram D.; Borde, Mahesh; Penna, Suprasanna; Srivastava, Ashish K. published an article.Computed Properties of 473-81-4 The title of the article was Resilience in primary metabolism contributes to salt stress adaptation in Sesuvium portulacastrum (L.). And the article contained the following:

Abstract: Sesuvium portulacastrum (L.) is a facultative halophyte that grows in subtropical coastal sides of the eastern and western regions of India. In the present study, the activation of antioxidant machinery was observed at 8 and 24 h after 250 mM NaCl stress treatment. Further, GC-MS/MS based metabolomics was performed, independently in root (NR8 and NR24) and shoot (NS8 and NS24). A total of 53 and 62 metabolites were detected in roots and shoots, resp., that mainly included sugars, amino acids, organic acids and polyols. On the basis of statistical significance, sucrose and ethanolamine were identified as differentially altered metabolites (DAMs) shared under all the treatment conditions. Heat-map based clustering anal. substantiated the role of sugars and amino acids in NR8; while, sugars in NS8/NS24 treatments. For most of the DAMs, extent of change at NR24 was significantly dampened than NR8, which also coincided with reduced correlation strength between different metabolite groups, indicating partial metabolite restoration. The enrichment anal. identified sugars, amino acid and TCA cycle metabolism as major pathways altered under salt stress conditions. A total of 30 metabolomic datasets from 7 different halophytes, including the present study, were utilized to perform meta-anal. On the basis of cumulative pathway score (CPS) of both root and shoot, aspartate-alanine-glutamate (290.62) was identified as the most significant pathway followed by arginine biosynthesis (0.62) and glyoxylate-dicarboxylate metabolism (0.46) that significantly contributed to salt-adaptation in halophytes. Thus, the holistic anal. of salt-responsive metabolites/pathways from halophytes will pave the way for enhancing salt-tolerance in crop plants. The experimental process involved the reaction of 2,3-Dihydroxypropanoic acid(cas: 473-81-4).Computed Properties of 473-81-4

The Article related to sesuvium salt stress adaptation metabolism, Placeholder for records without volume info and other aspects.Computed Properties of 473-81-4

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On June 1, 2020, Mukherjee, Manjistha; Dey, Abhishek published an article.Recommanded Product: 143-10-2 The title of the article was Catalytic C-H Bond Oxidation Using Dioxygen by Analogues of Heme Superoxide. And the article contained the following:

Heme active sites are capable of oxidizing organic substrates by four electrons using mol. oxygen (heme dioxygenases), where a dioxygen (O2) adduct of heme (FeIII-O2•-) acts as the primary oxidant, in contrast to monooxygenases, where high-valent species are involved. This chem., although lucrative, is difficult to access using homogeneous synthetic systems. Over the past few years using a combination of self-assembly and in situ resonance Raman spectroscopy, the distribution of different reactive intermediates formed during the electrochem. reduction of oxygen has been elucidated. An FeIII-O2•- species, which is the reactive species of dioxygenase, is an intermediate in heterogeneous electrochem. O2 reduction by iron porphyrins and its population, under electrochem. conditions, may be controlled by controlling the applied potential. Iron porphyrins having different axial ligands are constructed on a self-assembled monolayer of thiols on an electrode, and these constructs can activate O2 and efficiently catalyze the dioxygenation of 3-methylindole and oxidation of a series of organic compounds having C-H bond energies between 80 and 90 kcal mol-1 at potentials where FeIII-O2•- species are formed on the electrode. Isotope effects suggest that hydrogen-atom transfer from the substrate is likely to be the rate-determining step. Axial thiolate ligands are found to be more efficient than axial imidazoles or phenolates with turnover numbers above 60000 and turnover frequencies over 60 s-1. These results highlight a new reaction engineering approach to harness O2 as a green oxidant for efficient chem. oxidation Four-electron oxidation of a substrate by oxygen catalyzed by iron porphyrins. The experimental process involved the reaction of 1-Decanethiol(cas: 143-10-2).Recommanded Product: 143-10-2

The Article related to dioxygen heme dioxygenase iron porphyrin, Placeholder for records without volume info and other aspects.Recommanded Product: 143-10-2

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On December 31, 2022, Valdes, Alberto; Moreno, Lorena Ortega; Rello, Silvia Rojo; Orduna, Antonio; Bernardo, David; Cifuentes, Alejandro published an article.Category: alcohols-buliding-blocks The title of the article was Metabolomics study of COVID-19 patients in four different clinical stages. And the article contained the following:

SARS-CoV-2 (severe acute respiratory syndrome coronavirus 2) is the coronavirus strain causing the respiratory pandemic COVID-19 (coronavirus disease 2019). To understand the pathobiol. of SARS-CoV-2 in humans it is necessary to unravel the metabolic changes that are produced in the individuals once the infection has taken place. The goal of this work is to provide new information about the altered biomol. profile and with that the altered biol. pathways of patients in different clin. situations due to SARS-CoV-2 infection. This is done via metabolomics using HPLC-QTOF-MS anal. of plasma samples at COVID-diagnose from a total of 145 adult patients, divided into different clin. stages based on their subsequent clin. outcome (25 neg. controls (non-COVID); 28 pos. patients with asymptomatic disease not requiring hospitalization; 27 pos. patients with mild disease defined by a total time in hospital lower than 10 days; 36 pos. patients with severe disease defined by a total time in hospital over 20 days and/or admission at the ICU; and 29 pos. patients with fatal outcome or deceased). Moreover, follow up samples between 2 and 3 mo after hospital discharge were also obtained from the hospitalized patients with mild prognosis. The final goal of this work is to provide biomarkers that can help to better understand how the COVID-19 illness evolves and to predict how a patient could progress based on the metabolites profile of plasma obtained at an early stage of the infection. In the present work, several metabolites were found as potential biomarkers to distinguish between the end-stage and the early-stage (or non-COVID) disease groups. These metabolites are mainly involved in the metabolism of carnitines, ketone bodies, fatty acids, lysophosphatidylcholines/phosphatidylcholines, tryptophan, bile acids and purines, but also omeprazole. In addition, the levels of several of these metabolites decreased to “normal” values at hospital discharge, suggesting some of them as early prognosis biomarkers in COVID-19 at diagnose. The experimental process involved the reaction of 3-Hydroxyphenylacetic acid(cas: 621-37-4).Category: alcohols-buliding-blocks

The Article related to human covid metabolomics clin stage, Placeholder for records without volume info and other aspects.Category: alcohols-buliding-blocks

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On August 31, 2013, Ben Youssef, Ismail; Alem, Halima; Sarry, Frederic; Elmazria, Omar; Jimenez Rioboo, Rafael; Arnal-Herault, Carole; Jonquieres, Anne published an article.Category: alcohols-buliding-blocks The title of the article was Functional poly(urethane-imide)s containing Lewis bases for SO2 detection by Love surface acoustic wave gas micro-sensors. And the article contained the following:

Functional polymers containing Lewis bases are known as promising materials for the elaboration of highly sensitive micro-sensors for acid gas detection. In this work, poly(urethane-imide)s (PUIs) with Lewis bases were synthesized in two steps only from various functional diols (N-methyldiethanolamine, N-tert-butyldiethanolamine, N-phenyldiethanolamine and 1,4-diethanolpiperazine) containing one or two tertiary amine groups with different chem. structures. The synthesis led to high yields, high mol. weights and a good control of the PUI amine content. These good film-forming polymers were then used as SO2 sensitive coatings on Love surface acoustic wave (L-SAW) micro-sensors. The phys. and mech. properties required for an optimal micro-sensor design were determined by High Resolution Brillouin Spectroscopy of PUI thin layers. Three-layer micro-sensors were developed by respecting the conditions for the L-SAW generation. The three-layer structure included Quartz ST-90 as the piezoelec. substrate, a ZnO guiding layer and a PUI sensitive layer. These micro-sensors were weakly sensitive to temperature and thus compatible with the targeted application. The exptl. results for SO2 detection showed that all the PUI coatings greatly improved the sensitivity compared to a micro-sensor without polymer coating. The basicity of the amine groups was not determining for the micro-sensor sensitivity to the SO2 acid gas and the key factor was their steric hindrance. Finally, the micro-sensor sensitivity increased with the accessibility of the amine groups in the order Piperazine-diol < tBu-DEA ≃ Ph-DEA ≪ MDEA. The experimental process involved the reaction of 2,2'-(tert-Butylazanediyl)diethanol(cas: 2160-93-2).Category: alcohols-buliding-blocks

The Article related to sulfur dioxide sensor lewis base polyurethane polyimide, coating sulfur dioxide sensor lewis base, Inorganic Analytical Chemistry: Detections and other aspects.Category: alcohols-buliding-blocks

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On November 30, 2006, Yatake, Masahiro published a patent.Application In Synthesis of 2-Methyl-2-propylpropane-1,3-diol The title of the patent was Ink containing propanediol derivatives for ink-jet recording. And the patent contained the following:

The jet recording ink has excellent stability, high color saturation on regular paper, high glossiness on gloss paper, and excellent discharge stability from an ink jet head. This ink uses 2-methyl-2-propyl-1,3-propanediol (0.1-2%) penetrant. The experimental process involved the reaction of 2-Methyl-2-propylpropane-1,3-diol(cas: 78-26-2).Application In Synthesis of 2-Methyl-2-propylpropane-1,3-diol

The Article related to anticlogging jet printing ink alkyl propanediol derivative penetrant, Coatings, Inks, and Related Products: Inks and other aspects.Application In Synthesis of 2-Methyl-2-propylpropane-1,3-diol

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