Category: 118-55-8

On June 30, 2022, Zohmachhuana, Alex; Malsawmdawngliana; Lalnunmawia, F.; Mathipi, Vabeiryureilai; Lalrinzuali, K.; Kumar, N. Senthil published an article.COA of Formula: C13H10O3 The title of the article was Curcuma aeruginosa Roxb. exhibits cytotoxicity in A-549 and HeLa cells by inducing apoptosis through caspase-dependent pathways. And the article contained the following:

The aim of the current study was to examine the efficacy of the leaf, stem and rhizome of Curcuma aeruginosa Roxb. for their phytochem. content, antioxidant and anti-cancer activities. The different parts of C. aeruginosa were subjected to sequential extraction to give three fractions viz., hexane, Et acetate and methanol extract The cytotoxic effect and the mode of action against A-549 human lung adenocarcinoma and HeLa cell lines were examined C. aeruginosa presented no significant toxic effect in normal human lung cells (L-132). The methanol extracts were found to be the most cytotoxic and further investigation was carried out to understand the effects. The methanol extracts induced DNA damage after 24 h with significant increase in tail DNA and tail moment when compared to untreated control. Up-regulation in the expression of the caspase – 8 and – 3 activity was observed after 48 h of treatment. The mechanism of cell death and apoptosis induced by the methanol extracts on A549 and HeLa cells were studied using fluorescent staining. Bioactive compounds detected from the HPLC revealed phenol and flavonoid compounds: Gallic acid, quercetin, caffeic acid, kaempferol, rutin, coumaric acid and naringenin. GC-MS results identified the presence of sesquiterpenoids: alpha-curcumene, curzerene curcumenol, curzerenone epicurzerenone, caryophyllene oxide and diterpenoid, andrographolide. These compounds are known for inducing apoptosis in human cancer cells through caspase – dependent pathways. Therefore, C. aeruginosa and its potential to induce apoptosis in cancer cells suggest that they have potential in medical applications. The experimental process involved the reaction of Phenyl Salicylate(cas: 118-55-8).COA of Formula: C13H10O3

The Article related to curcuma aeruginosa a549 hela cell apoptosis cytotoxicity caspase pathway, antioxidant, apoptosis, caspase, comet assay, mtt, Placeholder for records without volume info and other aspects.COA of Formula: C13H10O3

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On December 31, 2020, Brazhkin, V. V. published an article.Computed Properties of 118-55-8 The title of the article was Kinetic Model of Softening of Glasses. And the article contained the following:

A liquid-glass transition (vitrification) has been analyzed in terms of the softening of a solid phase through diffusion jumps. It has been shown that the assumption of a Gibbs momentum distribution (in fact, local thermalization) in glass automatically results in the existence of diffusion in glasses at any temperatures In view of this conclusion, the possibility of a virtual “thermodn.” transition responsible for vitrification is questionable. A model of jumps of “hot” particles has been proposed that predicts the existence of two characteristic temperatures TA and TB and describes qual. changes in the temperature dependence of the viscosity of a liquid upon cooling (“Arrhenius”-“super-Arrhenius”-“;Arrhenius”). The temperatures TA and TB are related to the number of particles in the first coordination sphere and the number of particles in the region of structural correlations (intermediate order region) in disordered media. The concept of ergodicity is discussed in application to glasses. The experimental process involved the reaction of Phenyl Salicylate(cas: 118-55-8).Computed Properties of 118-55-8

The Article related to glass transition temperature softening kinetic model vitrification, Ceramics: Glass (Oxide and Nonoxide Glasses) and other aspects.Computed Properties of 118-55-8

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On September 30, 2022, Borredon, Claudia; Miccio, Luis A.; Phan, Anh D.; Schwartz, Gustavo A. published an article.Product Details of 118-55-8 The title of the article was Estimating glass transition temperature and related dynamics of molecular glass formers combining artificial neural networks and disordered systems theory. And the article contained the following:

Glass transition temperature and related dynamics play an essential role in amorphous materials research since many of their properties and functionalities depend on mol. mobility. However, the temperature dependence of the structural relaxation time for a given glass former is only exptl. accessible after synthesizing it, implying a time-consuming and costly process. In this work, we propose combining artificial neural networks and disordered systems theory to estimate the glass transition temperature and the temperature dependence of the main relaxation time based on the knowledge of the mol.’s chem. structure. This approach provides a way to assess the dynamics of mol. glass formers, with reasonable accuracy, even before synthesizing them. We expect this methodol. to boost industrial development, save time and resources, and accelerate the scientific understanding of structure-properties relationships. The experimental process involved the reaction of Phenyl Salicylate(cas: 118-55-8).Product Details of 118-55-8

The Article related to glass former transition temperature artificial neural network disordered theory, General Physical Chemistry: General Theories and other aspects.Product Details of 118-55-8

Referemce:
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Ester – an overview | ScienceDirect Topics

On March 31, 2022, Tominaga, Kohji; Orikasa, Isamu; Tomaru, Momoko; Osada, Takuma; Hashimoto, Yoshitaka; Inatomi, Yuko; Suzuki, Shinsuke published an article.Formula: C13H10O3 The title of the article was Diffusion coefficient analysis method using data statistical processing to reduce interference fringe noise effects. And the article contained the following:

A simple statistical anal. method is proposed of minute concentration changes for measuring diffusion coefficient with reduced interference fringe noise effect. In the Soret-Facet Mission, the one-dimensional diffusion equation discretized by the finite difference method was applied for temporal homogenization processes of the minute concentration gradient induced by the Soret effect with random noises. Measured diffusion coefficient, Dexp, was determined by evaluating the obtained apparent diffusion coefficient distributions D. The measured value Dexp obtained by the proposed processes was found to be valid because the measured value Dexp was close to the theor. one, Dth, calculated by the Darken equation and the reference one Dref calculated in Facet Mission in the same solution system, resp. In addition, by analyzing ∼ 1/16th of the total field of view, it was possible to obtain a diffusion coefficients that are ≥ 95% convergent for the measured value Dexp obtained from the full field of view anal. The experimental process involved the reaction of Phenyl Salicylate(cas: 118-55-8).Formula: C13H10O3

The Article related to diffusion data statistical processing interference fringe noise effect reduction, Unit Operations and Processes: Mass Transfer and other aspects.Formula: C13H10O3

Referemce:
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Ester – an overview | ScienceDirect Topics

On June 30, 2019, Barbosa, Sandro L.; Ottone, Myrlene; de S. Freitas, Milton; Lima, Camila D.; Nelson, David L.; Clososki, Giuliano C.; Caires, Franco J.; Klein, Stanlei I.; Hurtado, Gabriela R. published an article.Formula: C13H10O3 The title of the article was Synthesis of phenyl esters using SiO2-SO3H catalyst in conventional heating and microwave-irradiated esterification processes. And the article contained the following:

A SiO2-SO3H amorphous catalyst containing a small surface area of 115.0 m2g-1 and 1.32 mmol H+/g was prepared from fine construction sand and sodium carbonate and sulfonated with H2SO4. In a 10% (weight/weight) basis, it was very efficient for catalyzing the esterification of carboxylic acids with phenol to afford Ph esters RCO2Ph [R = H, Ph, 3-pyridyl, etc.]. The reaction processes were performed using conventional heating and under microwave irradiation The yields were higher in the microwave-irradiated esterification. The catalyst could be used for three esterification sequences in both processes. The experimental process involved the reaction of Phenyl Salicylate(cas: 118-55-8).Formula: C13H10O3

The Article related to phenyl ester preparation, carboxylic acid phenol esterification sulfonated silica catalyst microwave, General Organic Chemistry: Synthetic Methods and other aspects.Formula: C13H10O3

Referemce:
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Ester – an overview | ScienceDirect Topics

Ojovan, Michael I. published an article in 2020, the title of the article was On viscous flow in glass-forming organic liquids.Synthetic Route of 118-55-8 And the article contains the following content:

The two-exponential Sheffield equation of viscosity η (T) = A1·T·[1 + A2·exp(Hm/RT)]·[1 + C·exp(Hd/RT)], where A1, A2, Hm, C, and Hm are material-specific constants, is used to analyze the viscous flows of two glass-forming organic materials-salol and α-phenyl-o-cresol. It is demonstrated that the viscosity equation can be simplified to a four-parameter version: η(T) = [A·T·exp(Hm/RT)]·[1 + C·exp(Hd/RT)]. The Sheffield model gives a correct description of viscosity, with two exact Arrhenius-type asymptotes below and above the glass transition temperature, whereas near the Tg it gives practically the same results as well-known and widely used viscosity equations. It is revealed that the constants of the Sheffield equation are not universal for all temperature ranges and may need to be updated for very high temperatures, where changes occur in melt properties leading to modifications of A and Hm for both salol and α-phenyl-o-cresol. The experimental process involved the reaction of Phenyl Salicylate(cas: 118-55-8).Synthetic Route of 118-55-8

The Article related to glass forming organic liquid viscous flow, activation energy, glass transition temperature, glass-forming liquids, viscosity, viscous flow, General Physical Chemistry: General Theories and other aspects.Synthetic Route of 118-55-8

Referemce:
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Weber, Sandra; Schmidt, Tamina; Schumacher, Paul; Kuballa, Thomas; Mildau, Gerd; Walch, Stephan G.; Hartwig, Andrea; Lachenmeier, Dirk W. published an article in 2019, the title of the article was Quantification of mineral oil aromatic hydrocarbons (MOAH) in anhydrous cosmetics using 1H NMR.Synthetic Route of 118-55-8 And the article contains the following content:

In cosmetic products, hydrocarbons from mineral oil origin are used as ingredients in a wide variety of consistency, from liquid oil to solid wax. Refined mineral oil hydrocarbons consist of MOSH and a low proportion of MOAH (mineral oil aromatic hydrocarbons). In the context of precautionary consumer protection, it is crucial to determine hydrocarbons from mineral oil origin of inferior quality quickly and efficiently. This publication presents a rapid method for quantifying MOAH by proton NMR spectroscopy (1H qNMR) in anhydrous cosmetics such as lipstick, lip gloss, and lip balm. A sample clean-up using solid-phase extraction was developed for the complete removal of interfering aromatic substances to improve the robustness of the method for analyzing compounded cosmetics. In preliminary trials using silica gel thin-layer chromatog., the retention behavior of 21 common aromatic compounds was tested in eluents with different solvent strength including EtOAc, MeOH, cyclohexane, and dichloromethane. Based on these results, the SPE sample cleanup with silica gel and cyclohexane as an eluent was suggested as best suitable for the purpose. The SPE cleanup was successfully achieved for all tested potentially interfering aromatic cosmetic ingredients except for butylated hydroxytoluene. The recovery for lipophilic cosmetics is more than 80% based on naphthalene as calculation equivalent The 1H qNMR method is a good complement to the LC-GC-FID method, which is predominantly used for the determination of MOSH and MOAH. The experimental process involved the reaction of Phenyl Salicylate(cas: 118-55-8).Synthetic Route of 118-55-8

The Article related to anhydrous cosmetics mineral oil aromatic hydrocarbon nmr spectroscopy, Essential Oils and Cosmetics: Skin Preparations and other aspects.Synthetic Route of 118-55-8

Referemce:
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Ester – an overview | ScienceDirect Topics

Zykova, V. A.; Adichtchev, S. V.; Novikov, V. N.; Surovtsev, N. V. published an article in 2020, the title of the article was Second-order-derivative analysis of structural relaxation time in the elastic model of glass-forming liquids.SDS of cas: 118-55-8 And the article contains the following content:

Recently it was shown [V.N.Novikov and A.P.Sokolov, Phys.Rev.E92, 062304 (2015)10.1103/PhysRevE.92.062304] that the second derivative with respect to inverse temperature of the structural relaxation time in some supercooled mol. liquids has a sharp maximum It marks the point at which the apparent activation energy begins to saturate with decreasing temperature The elastic model of glass-forming liquids expresses the temperature dependence of the structural relaxation time through that of the shear modulus. In this paper, we test whether this model is able to predict the maximum of the second derivative We confirm its presence in the elastic model by analyzing the temperature dependence of the Brillouin light scattering in salol. This is a very subtle feature of the temperature dependence, which is greatly enhanced when taking derivatives Its presence in the Brillouin data provides strong support to the elastic model of glass-forming liquids The experimental process involved the reaction of Phenyl Salicylate(cas: 118-55-8).SDS of cas: 118-55-8

The Article related to glass forming liquid second order derivative analysis relaxation time, General Physical Chemistry: Electronic Structure and other aspects.SDS of cas: 118-55-8

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

On June 21, 2020, Raj, Danuta published an article.Formula: C13H10O3 The title of the article was Thin-layer chromatography with eutectic mobile phases-preliminary results. And the article contained the following:

The presented paper is the first to show thin layer chromatog. (TLC) anal. based on eutectic mobile phases (Deep Eutectic Solvents – DES). During the experiment 25 eutectic mixtures were investigated for their chromatog. properties. Most of them belong to the natural deep eutectic solvents (NADES) group. Also, new eutectic liquids based on phenolics and terpenes, not previously employed in anal. practice, were tested. The eutectic liquids were investigated as pure or diluted with solvents used in chromatog. routine: methanol, water, acetone, chloroform or di-Et ether. The analyses were carried out using classic and high performance silica gel plates. The working solution was a mixture of five alkaloids found in genus Chelidonium, namely sanguinarine, coptisine, chelerythrine, chelidonine, and berberine, with UV light detection of 366 nm. This report proves that eutectic TLC is possible and that the eutectic interactions play a crucial role in the separation process. In most of the tested modifications at least partial separation was achieved. The most successful mobile phase, which enabled separation of all the tested alkaloids, was the equimolar mixture of menthol and phenol with a 35% addition of methanol. The system was also effective in separating alkaloids in the real Chelidonium maius extract sample. The experimental process involved the reaction of Phenyl Salicylate(cas: 118-55-8).Formula: C13H10O3

The Article related to thin layer chromatog eutectic mobile phase, chelidonium, chromatography, eutectic solvents, isoquinoline alkaloids, nades, tlc, Biochemical Methods: Spectral and Related Methods and other aspects.Formula: C13H10O3

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

On January 15, 2019, Solunov, Hristo Aleksandrov published an article.Electric Literature of 118-55-8 The title of the article was Relations between the sub-molecula and the cooperative scales in the molecular dynamics of the glass-forming liquids. And the article contained the following:

The mols. of the supercooled liquids in the cooperative mol. dynamics are partitioning to specific dynamic units, known as “beads”. The beads have been defined as the smallest units, forming the heat capacity of the supercooled liquids The beads appear as a sub-mol. scale in the dynamics of the glass-forming liquids In the Adam-Gibbs theory the number of mols., rearranging simultaneously, has been defined as the size of the cooperative rearranging region and these regions form the second larger mol. scale in mol. dynamics. Due to a noticeable discrepancy in estimating the number of beads in the mols. by the empirical rules as well as by theor. models the relations between these two scales are not well known. Recently, a new thermodn. method for estimating the number of the beads in the mols. and a rule for the examination of their temperature dependence have been suggested. By these methods 48 low-mol. supercooled liquids are investigated and the relations between these two mol. scales and the structure of the mols. have been found. The estimated number of configuration beads is compared with the number of the structural units (the chem. groups, the ions and the atoms), with the assigned number by the empirical rules and with the ones calculated, based on a Lennar-Jones model of the random first order transition theory. A constant and two kinds of temperature dependence of the number of the beads in the mols. of different liquids have been revealed. A mol. basis, forming the fragility of the supercooled liquids, has been found. From the results obtained, the investigated liquids are classified in several groups following the logical line in the formation of the beads. The experimental process involved the reaction of Phenyl Salicylate(cas: 118-55-8).Electric Literature of 118-55-8

The Article related to glass forming supercooled liquid mol dynamics, General Physical Chemistry: Macroscopic Properties and other aspects.Electric Literature of 118-55-8

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Ester – an overview | ScienceDirect Topics