Tag: M.W=100-150

Ashraf Uddin, M. published the artcileViscometric studies of molecular interactions in binary mixtures of ethylbenzene with (C4 to C8) Alkan-1-ols, SDS of cas: 111-87-5, the main research area is ethylbenzene butanol electron transfer density functional theory.

Dynamic viscosities (ηexp) for binary mixtures of ethylbenzene with butan-1-ol, pentan-1-ol, hexan-1-ol, heptan-1-ol, and octan-1-ol were measured at varying temperatures (298.15-323.15 K; interval, 5 K) and atm. pressure. Viscosity deviations (Δη) across the entire range of mole fractions were derived from ηexp and were correlated using a Redlich-Kister type polynomial expression. The ηexp were compared with those calculated, ηcal, in terms of the pure components and the adjustable interaction parameters derived from ηexp using Arrhenius, Kendall-Monroe, Grunberg-Nissan, Teja-Rice, and Andrade/DIPPR models to evaluate the validity of the predictive and correlative approaches. The temperature-induced variations in ηexp were discussed considering the impact of the increasing chain-length of alkanols, including mol. interactions among the component mols. in the binary mixtures A computational quantum mech. modeling approach, d.-functional theory, was used to explore the dimensions in interactions among the binary mixture components.

Journal of Molecular Liquids published new progress about Binary mixtures. 111-87-5 belongs to class alcohols-buliding-blocks, name is n-Octanol, and the molecular formula is C8H18O, SDS of cas: 111-87-5.

Referemce:
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts

Nagababu, P. published the artcileInvestigation of molecular interactions in binary mixtures of homologous series of aliphatic alcohols with 2-methoxyaniline at various temperatures, Recommanded Product: n-Octanol, the main research area is methoxyaniline binary mixture aliphatic alc mol interaction.

Thermodn. and transport properties (excess molar volume, excess isentropic compressibility and deviation in viscosity) are calculated from the exptl. d., speed of sound and viscosity. The results are analyzed in terms of rupture of hydrogen-bonded chain as the dipolar interaction between 2-methoxyaniline and 1-alkanol (1-hexanol, 1-heptanol and 1-octanol) exceeds the intermol. interaction through dipole-dipole and hydrogen bonding between these unlike mols. The VE results are analyzed in the light of Prigogine-Flory-Patterson theory. Anal. of each of the three contributions viz. interactional, free volume and P* to VE has shown that interactional contribution are pos. for all systems, the free volume effect and P* contribution are neg. for all the mixtures

Physics and Chemistry of Liquids published new progress about Binary mixtures. 111-87-5 belongs to class alcohols-buliding-blocks, name is n-Octanol, and the molecular formula is C8H18O, Recommanded Product: n-Octanol.

Referemce:
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts

Almasi, Mohammad published the artcileStudy of interactions in binary mixtures containing normal alkanols; KB integrals and structure factor, Recommanded Product: n-Octanol, the main research area is binary mixture normal alkanol Kirkwood Buff integral structure factor.

In this paper, the investigation on the structure and mol. interactions in the binary systems containing aniline and 1-alkanol (1-pentanol up to 1-decanol) was performed in the framework of Kirkwood-Buff (KB) integrals and exptl. techniques. The interpretation of obtained parameters shows that in binary mixtures with shorter chain alcs., unlike mols. tend to form strong interactions, while increasing in the carbon atom of 1-alkanols reduces the strength of bonds and tendency of the heterogeneous mols. to stay along side. Mixtures structure was studied using the concentration-concentration structure factor, . Results from the application of this parameter show that the heterocoordination occurs in solutions involving 1-pentanol up to 1-heptanol, while for mixtures containing 1-octanol to 1-decanol, homocoordination is predominant. Also, the chem. short-range order parameter, α’which is an important function to understand the complex formation and phase segregation in the liquid mixtures was obtained and discussed for mentioned mixtures

Physics and Chemistry of Liquids published new progress about Binary mixtures. 111-87-5 belongs to class alcohols-buliding-blocks, name is n-Octanol, and the molecular formula is C8H18O, Recommanded Product: n-Octanol.

Referemce:
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts

Almasi, Mohammad published the artcileCohesive energy density and internal pressure of benzene and 1-alkanol binary mixtures, Recommanded Product: n-Octanol, the main research area is benzene alkanol binary mixture cohesive energy density internal pressure.

The internal pressure (Pint), cohesive energy d. (ced), and free volume (vf) for liquid mixtures of benzene with (C6 to C10) 1-alkanol are calculated at 303.15 K and atm. pressure. Flory’s statistical theory was employed to drive the internal pressure of five binary mixtures The conductor-like screening model for real solutions (COSMO-RS), in combination with exptl. densities was applied to calculate the cohesive energy d. of the binary systems. The ‘structuredness’ of the fluids above was studied using the Pint/ced ratio. The values are between 0.7 and 1.2, as is the case for non-associated mol. liquids, and demonstrates the non-chem. dispersions and repulsion types for binary liquids The variations of these parameters with mole fraction and length of alkyl chain in the studied 1-alkanol were explained from the perspective of intermol. interactions. It is observed that increase in the Me groups of alc. creates addnl. steric hindrances, loosens the structural packing, and reduces the order of interactions in these mixtures Also, exptl. densities and viscosities at various temperatures were reported for liquid mixtures to verify the existing interactions among unlike mols.

Journal of Molecular Liquids published new progress about Binary mixtures. 111-87-5 belongs to class alcohols-buliding-blocks, name is n-Octanol, and the molecular formula is C8H18O, Recommanded Product: n-Octanol.

Referemce:
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts

Wang, Erkang published the artcileTransient absorption spectroscopy and imaging of redox in muscle mitochondria, Category: alcohols-buliding-blocks, the main research area is muscle mitochondria imaging transient absorption spectroscopy.

Mitochondrial redox is an important indicator of cell metabolism and health, with implications in cancer, diabetes, aging, neurodegenerative diseases, and mitochondrial disease. The most common method to observe redox of individual cells and mitochondria is through fluorescence of NADH and FAD+, endogenous cofactors serve as electron transport inputs to the mitochondrial respiratory chain. Yet this leaves out redox within the respiratory chain itself. To a degree, the missing information can be filled in by exogenous fluorophores, but at the risk of disturbed mitochondrial permeability and respiration. Here we show that variations in respiratory chain redox can be detected up by visible-wavelength transient absorption microscopy (TAM). In TAM, the selection of pump and probe wavelengths can provide multiphoton imaging contrast between non-fluorescent mols. Here, we applied TAM with a pump at 520nm and probe at 450nm, 490nm, and 620nm to elicit redox contrast from mitochondrial respiratory chain hemeproteins. Experiments were performed with reduced and oxidized preparations of isolated mitochondria and whole muscle fibers, using mitochondrial fuels (malate, pyruvate, and succinate) to set up physiol. relevant oxidation levels. TAM images of muscle fibers were analyzed with multivariate curve resolution (MCR), revealing that the response at 620nm probe provides the best redox contrast and the most consistent response between whole cells and isolated mitochondria.

Biomedical Optics Express published new progress about Flash photolysis. 97-67-6 belongs to class alcohols-buliding-blocks, name is (S)-2-hydroxysuccinic acid, and the molecular formula is C4H6O5, Category: alcohols-buliding-blocks.

Referemce:
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts

Baro-Montel, Nuria published the artcileScrutinising the relationship between major physiological and compositional changes during ‘Merrill O’Henry’ peach growth with brown rot susceptibility, Category: alcohols-buliding-blocks, the main research area is ethylene Monilinia respiration peach growth brown rot susceptibility; Citric; Monilinia spp.; Prunus persica; ethylene; fruit development.

In the present work, the major physiol. and compositional changes occurring during ‘Merrill O’Henry’ peach growth and its relationship with susceptibility to three strains of Monilinia spp. at 49, 77, 126 and 160 days after full bloom were explored. Results of disease incidence indicated wide differences among phenol. stages, being 49 and 126 days after full bloom the moment when peaches showed significantly lower susceptibility to brown rot (40 and 23% of rotten fruit, resp., for strain ML8L). Variation in brown rot susceptibility among different growth stages was also strain-dependent. Lower fruit susceptibility to ML8L at 49 and 126 was accompanied by noticeable changes in the fruit ethylene and respiration patterns, and also in sugars and organic acids content. By employing a partial least squares regression model, a strong neg. relationship between citric acid, and a pos. association of ethylene with peach susceptibility to Monilinia spp. at diverse phenol. stages were observed The results obtained herein highlight that the content of certain compounds such as citrate, malate and sucrose; the respiratory activity and the fruit ethylene production may mediate in a coordinated manner the fruit resistance to Monilinia spp. at different phenol. stages of peach fruit.

Food Science and Technology International (London, United Kingdom) published new progress about Fungi, brown rot. 97-67-6 belongs to class alcohols-buliding-blocks, name is (S)-2-hydroxysuccinic acid, and the molecular formula is C4H6O5, Category: alcohols-buliding-blocks.

Referemce:
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts

Berthon, Laurence published the artcileHow Phase Modifiers Disrupt Third-phase Formation in Solvent Extraction Solutions, Recommanded Product: n-Octanol, the main research area is solvent extraction neodymium mol dynamics.

The structure of complex organic solutions based on N,N,N,N-tetraoctyldiglycolamide (TODGA) used in actinide separation processes were characterized after water and neodymium extraction The organic phases were characterized using FTIR spectroscopy, ESI-MS spectrometry, Small and Wide Angle X-ray Scattering (SWAXS) and mol. dynamic simulations. The role of the “”phase modifier”” like 1-octanol (used in the innovative SANEX process) or the “”co-extractant”” like DMDOHEMA (used, for example, in the EURO-GANEX process) added to the organic phase to avoid third-phase formation was investigated at mol. and supramol. scales. Without metallic cations in 0.2 mol/L TODGA solution in n-heptane, TODGA mols. are organized in monomers and small aggregates containing mainly two or three TODGA mols. After Nd(NO3)3 extraction, complexes or aggregates are formed in which each neodymium cation is surrounded in average by 2 to 4 TODGA, 3 nitrate ions and 1 to 2 water mols. Polymetallic species (aggregates) may also be formed. Adding 5%Vol 1-octanol or 0.5 mol/L DMDOHEMA to 0.2 mol/L TODGA solution in n-heptane leads to the formation of mixed aggregates containing TODGA and octanol mols. or TODGA and DMDOHEMA mols. These mols. both interact directly with the extracted metallic cation in the organic phase, modifying the structure of the neodymium species, and improving their solubility in this organic phase. At least one TODGA mol. remains in the cation first coordination sphere in both cases and preserves its significant role in the complexation/selectivity of the cations. But it is clear that both 1-octanol and DMDOHEMA have a role in the speciation of the cations in the organic phase: 1-octanol replaces water mols. in the first coordination sphere of Nd, acting as a co-surfactant; DMDOHEMA drives the organization and DMDOHEMA mols. partially replace TODGA in the first coordination sphere of Nd.

Solvent Extraction and Ion Exchange published new progress about Lattice dynamics. 111-87-5 belongs to class alcohols-buliding-blocks, name is n-Octanol, and the molecular formula is C8H18O, Recommanded Product: n-Octanol.

Referemce:
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts

Ghosh, Pranab published the artcilePerformance evaluation of polymeric blend of vinyl acetate and acrylate-based copolymers in lubricating oil, Application of n-Octanol, the main research area is polymeric blend vinyl acetate acrylate lubricating oil.

Polymer modification processes like blending has attracted much attention as an easy, cost-effective and less time-consuming method for developing new polymeric materials enriched with versatile com. application. Polymer blends are supposed to carry better thermal and mech. properties compared to their parent polymers. In this view we have prepared a polymer blend of two copolymers- one of vinyl acetate and octyl acrylate and another of Me methacrylate and dodecyl acrylate and characterized them by FT-IR and NMR spectroscopy. The mol. weight was determined by Gel Permeation Chromatog. (GPC). We represented here a comparative study of their mech. property as well as their performance as flow improver.

Petroleum Science and Technology published new progress about Lubricating oils. 111-87-5 belongs to class alcohols-buliding-blocks, name is n-Octanol, and the molecular formula is C8H18O, Application of n-Octanol.

Referemce:
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts

Geffroy, Olivier published the artcileInvestigating the Aroma of Syrah Wines from the Northern Rhone Valley Using Supercritical CO2-Dearomatized Wine as a Matrix for Reconstitution Studies, Synthetic Route of 505-10-2, the main research area is supercritical dearomatized wine model aroma Syrah Rhone; Pivot profile; Syrah; aroma reconstitution; omission tests; supercritical CO2; wine.

This study aimed to investigate the key compounds involved in the aroma of French Syrah wines from the northern Rhone valley from two vintages characterized by distinct climatic conditions. The volatile composition of the wines was assessed through the determination of 76 mols. After identifying the best matrix and best model for aroma reconstitution studies, omission tests were conducted using the Pivot profile method. For both vintages, 35 mols. with odor activity values (OAVs) above 0.5 were identified. While remarkably high levels of 2-furfurylthiol (FFT) were reported in both wines, rotundone and 3-sulfanylhexanol (3SH) enabled the strongest discrimination between the two wines. Wine dearomatized using supercritical carbon dioxide (sCO2) was identified as the best matrix. The best models built using this matrix were composed of mols. with OAV > 5 and OAV > 10 highlighting that this dearomatization approach can be valuable to reconstitute the aroma of wine using a small number of mols. For the cool vintage wine, the omission of rotundone and FFT had the greatest impact on the olfactive profile for nonanosmic and anosmic respondents to rotundone, resp. 3SH, whose omission decreased the rating of the “”fruity”” attribute, was identified as the main contributor to the aroma of Syrah wine produced in the warm vintage.

Journal of Agricultural and Food Chemistry published new progress about Red wine (Syrah). 505-10-2 belongs to class alcohols-buliding-blocks, name is 3-(Methylthio)propan-1-ol, and the molecular formula is C4H10OS, Synthetic Route of 505-10-2.

Referemce:
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts

Ren, Qing published the artcileThe changes of microbial community and flavor compound in the fermentation process of Chinese rice wine using Fagopyrum tataricum grain as feedstock, Quality Control of 505-10-2, the main research area is microbial community flavor compound Fagopyrum Chinese rice wine fermentation.

Chinese rice wine (CRW), a unique wine species, has a long history in China. Fagopyrum tataricum grain is a kind of high-quality grain with function in health care. The production of CRW wine with F. tataricum grain is beneficial to the development of new rice wine products. The flavor compounds and microorganisms in F. tataricum grain rice wine were studied. One hundred and seven volatile compounds (including 11 kinds of pyrazines that were rarely detected in wine) were detected and eight organic acids were measured. The microecol. diversity in the fermentation process of F. tataricum rice wine was studied. It was found that Bacillus was the main bacterial genus, and the unclassfied_O_Saccharomycetales was the main fungi. Correlation anal. between microorganism and flavor compound shown there are 838 correlations. A total of 108 microbial genera maybe participate in the formation of flavor compounds In addition, fourteen genera included unclassified_O_Saccharomycetales, Lactococcus, Pediococcus, Aspergillus, Cladosporium, Cochliobolus, Sporidiobolus, Pichia and Saccharomycopsis et al. were screened as functional significant microbiota and built correlation with flavor compounds This work provides a perspective for bridging the gap between flavor compound and microbial community, and advances our understanding of mechanisms in F. tataricum rice wine fermentation

Scientific Reports published new progress about Acetoanaerobium. 505-10-2 belongs to class alcohols-buliding-blocks, name is 3-(Methylthio)propan-1-ol, and the molecular formula is C4H10OS, Quality Control of 505-10-2.

Referemce:
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts