Tag: 100-200

Sensory descriptive and comprehensive GC-MS as suitable tools to characterize the effects of alternative winemaking procedures on wine aroma. Part I: BRS Carmem and BRS Violeta was written by de Castilhos, Mauricio Bonatto Machado;Del Bianchi, Vanildo Luiz;Gomez-Alonso, Sergio;Garcia-Romero, Esteban;Hermosin-Gutierrez, Isidro. And the article was included in Food Chemistry in 2019.HPLC of Formula: 2380-78-1 The following contents are mentioned in the article:

This study analyzed the volatile composition and aroma profile of BRS Carmem and BRS Violeta red wines elaborated from traditional and two alternative winemaking procedures: grape pre-drying and submerged cap. The wines contained higher concentration of acetates (ranging from 303 mg L^-1 to 905 mg L^-1) and Et and Me esters (ranging from 138 mg L^-1 to 415 mg L^-1). The BRS Carmem wines were described as fruity due to the higher concentration of esters and BRS Violeta wines were described as vegetal mainly due to the higher concentration of terpenes and methoxyphenols. C6 alcs. also influenced the vegetal notes of BRS Violeta wines from traditional and submerged cap procedures and the pre-dried wines also presented a relevant jam note possibly due to the presence of 2-phenylethyl acetate. The changes in winemaking procedures can possibly lead to changes in the aromatic profile of red wines in a pos. way, improving the wine aroma quality. This study involved multiple reactions and reactants, such as 4-Hydroxy-3-methoxyphenethanol (cas: 2380-78-1HPLC of Formula: 2380-78-1).

4-Hydroxy-3-methoxyphenethanol (cas: 2380-78-1) belongs to ethers. 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.HPLC of Formula: 2380-78-1

Referemce:
Ether – Wikipedia,
Ether | (C2H5)2O – PubChem

Isolation and Purification of Monofunctional Methoxyphenols from Loblolly Pine Biocrude was written by Mante, Ofei. D.;Thompson, Samuel J.;Soukri, Mustapha;Dayton, David C.. And the article was included in ACS Sustainable Chemistry & Engineering in 2019.Product Details of 2380-78-1 The following contents are mentioned in the article:

Methoxyphenols (MPs) are valuable chems. in liquid intermediates from pyrolysis of lignocellulosic biomass. The use of a single technique to recover a high-purity bioproduct of MPs from pyrolysis liquid is challenging. The purpose of this study is to combine distillation and chromatog. techniques in sequence to recover exclusively eugenols and guaiacols as monofunctional MPs in biocrude produced from the pyrolysis of loblolly pine with a nonzeolite alumina catalyst. A biocrude containing 11.0 wt % of the targeted monofunctional MPs was first distilled in two stages to recover an MP-rich fraction with 49.3 weight % concentration of MPs at a recovery efficiency of 86.9%. A chromatog. separation using silica gel adsorbent was then used to purify the MP-enriched distillate. A final MP bioproduct with average purity of 87.3-93.1 weight % was achieved. The average efficiency of the chromatog. separation step varied between 73.9 and 82.5% depending on the silica particle size used. This study involved multiple reactions and reactants, such as 4-Hydroxy-3-methoxyphenethanol (cas: 2380-78-1Product Details of 2380-78-1).

4-Hydroxy-3-methoxyphenethanol (cas: 2380-78-1) belongs to ethers. 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. Acyl chlorides and acid anhydrides alcoholysis is another way to produce esters. Acyl chlorides and acid anhydrides react with alcohols to produce esters. Anydrous conditions are recommended since both acyl chlorides and acid anhydrides react with water.Product Details of 2380-78-1

Referemce:
Ether – Wikipedia,
Ether | (C2H5)2O – PubChem

Effect of chain length in ethoxylated and sulfonate surfactants upon the limiting diffusion coefficients in water at 25.0°C was written by Ortona, Ornella;D’Errico, Gerardino;Ciccarelli, Donato;Vitagliano, Vincenzo. And the article was included in Physical Chemistry Chemical Physics in 2000.Application In Synthesis of 2-(2-(Hexyloxy)ethoxy)ethanol The following contents are mentioned in the article:

Limiting diffusion coefficients of ethoxylated surfactants of general formula CH₃(CH₂)_p-1(OCH₂CH₂)_qOH (C_pE_q) and sulfonate surfactants of formula CH₃(CH₂)_p-1SO₃^– Na⁺(C_pSO₃Na) were measured at 25°C by the Taylor dispersion technique. The series C₆E_q, with 0≤q≤5, was studied to evaluate the effect of the length of ethoxylic chain, (-OCH₂CH₂-)_q, on the mobility of the surfactant, the series C_pE₅ with 0≤p≤8 was studied to evaluate the effect of the length of the hydrophobic group, (-CH₂-)_p. The series C_pSO₃Na was also studied to compare the exptl. results with the intradiffusion coefficients obtained by the NMR-PGSE technique and with the data computed by the Nernst-Hartley equation. This study involved multiple reactions and reactants, such as 2-(2-(Hexyloxy)ethoxy)ethanol (cas: 112-59-4Application In Synthesis of 2-(2-(Hexyloxy)ethoxy)ethanol).

2-(2-(Hexyloxy)ethoxy)ethanol (cas: 112-59-4) belongs to ethers. Volatile esters with characteristic odours are used in synthetic flavours, perfumes, and cosmetics. Certain volatile esters are used as solvents for lacquers, paints, and varnishes. 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 2-(2-(Hexyloxy)ethoxy)ethanol

Referemce:
Ether – Wikipedia,
Ether | (C2H5)2O – PubChem

Kraft lignin depolymerization in sub- and supercritical water using ultrafast continuous reactors. Optimization and reaction kinetics was written by Abad-Fernandez, Nerea;Perez, Eduardo;Martin, Angel;Cocero, Maria J.. And the article was included in Journal of Supercritical Fluids in 2020.Quality Control of 4-Hydroxy-3-methoxyphenethanol The following contents are mentioned in the article:

Kraft lignin was rapidly depolymerised in a continuous reactor using sub- and supercritical water. The reaction yielded an aromatic oil rich in high value aromatic monomers such as guaiacol, vanillin, acetovanillone and homovanillic acid. Different temperatures between 300 and 400°C and reaction times from 60 ms were studied. An increment in reaction time at every temperature studied promoted secondary reactions of repolymn. of the lignin products. Those undesired reactions were more relevant as temperature increased. An optimal temperature of 386°C at a reaction time of 170 ms was found, with a maximum yield in phenolic compounds obtained. At those conditions, a bio-oil containing low mol. weight compounds was obtained with a yield of 44.6%. A selectivity to the four cited monomers of 9.9% was achieved, with little formation of solid residue (3.5%). A simple kinetic model was proposed to describe the yield for the different fractions and fitted to exptl. data. This study involved multiple reactions and reactants, such as 4-Hydroxy-3-methoxyphenethanol (cas: 2380-78-1Quality Control of 4-Hydroxy-3-methoxyphenethanol).

4-Hydroxy-3-methoxyphenethanol (cas: 2380-78-1) belongs to ethers. Esters typically have a pleasant smell; those of low molecular weight are commonly used as fragrances and are found in essential oils and pheromones. 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 4-Hydroxy-3-methoxyphenethanol

Referemce:
Ether – Wikipedia,
Ether | (C2H5)2O – PubChem

Microwave-assisted synthesis of silver nanoprisms/nanoplates using a “modified polyol process” was written by Darmanin, Thierry;Nativo, Paola;Gilliland, Douglas;Ceccone, Giacomo;Pascual, Cesar;De Berardis, Barbara;Guittard, Frederic;Rossi, Francois. And the article was included in Colloids and Surfaces, A: Physicochemical and Engineering Aspects in 2012.Safety of 2-(2-(Hexyloxy)ethoxy)ethanol The following contents are mentioned in the article:

In this paper, we report a novel, efficient and versatile process to produce high concentrations of silver nanoprisms, while controlling their size (prism height) and size dispersity, using a “modified polyol process” (microwave-assisted process). If the formation of silver spherical particles, nanocubes or nanowires has already been reported using the classical polyol process (reduction of AgNO₃ by ethylene glycol and in presence of PVP), here we show that the production of silver nanoprisms/nanoplates is possible by a careful choice in the process parameters and in particular in the reducing agent (ethylene glycol should be replaced by a reducing agent containing only one hydroxyl reducing group such as ethylene glycol monoalkyl ethers). The synthesis, characterization, the influence of parameters and the mechanism of formation are discussed in order to correlate the operational conditions with the shape and the dimension of the nanoparticles. This study involved multiple reactions and reactants, such as 2-(2-(Hexyloxy)ethoxy)ethanol (cas: 112-59-4Safety of 2-(2-(Hexyloxy)ethoxy)ethanol).

2-(2-(Hexyloxy)ethoxy)ethanol (cas: 112-59-4) belongs to ethers. 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.Safety of 2-(2-(Hexyloxy)ethoxy)ethanol

Referemce:
Ether – Wikipedia,
Ether | (C2H5)2O – PubChem

Synthesis of acyclic quaternary ammonium compounds containing ω-alkoxyethyl and 2-hydroxyethyl substituents at the nitrogen atom was written by Tcarkova, K. V.;Belus, S. K.;Artyushin, O. I.;Kharlamov, A. V.;Bondarenko, N. A.. And the article was included in Russian Chemical Bulletin in 2015.Recommanded Product: 2-(2-(Hexyloxy)ethoxy)ethanol The following contents are mentioned in the article:

A series of acyclic sym. quaternary ammonium chlorides Me₂(HOCH₂CH₂)N⁺(CH₂CH₂O)_nR Cl^– (n = 1, R = n-C₉H₁₉; n = 2, R = n-C₆H₁₃; n = 3, R = n-C₃H₇) was synthesized by alkylation of the corresponding tertiary amines Me₂N(CH₂CH₂O)_nR with ethylene chlorohydrin in a two-phase system, using water as a solvent. The tertiary amines were synthesized in a heterogeneous system organic phase-aqueous phase, using an aqueous solution of Me₂NH and a solid alkali. The intermediate monoethers of ethylene, di and triethylene glycol were obtained in high yield via a phase-transfer alkylation in dioxane, using solid KOH. The proton and carbon atom signals in the NMR spectra of the synthesized amines and ammonium chlorides were assigned based on the data of heteronuclear correlations (¹H, ¹³C). This study involved multiple reactions and reactants, such as 2-(2-(Hexyloxy)ethoxy)ethanol (cas: 112-59-4Recommanded Product: 2-(2-(Hexyloxy)ethoxy)ethanol).

2-(2-(Hexyloxy)ethoxy)ethanol (cas: 112-59-4) belongs to ethers. Esters typically have a pleasant smell; those of low molecular weight are commonly used as fragrances and are found in essential oils and pheromones. Acyl chlorides and acid anhydrides alcoholysis is another way to produce esters. Acyl chlorides and acid anhydrides react with alcohols to produce esters. Anydrous conditions are recommended since both acyl chlorides and acid anhydrides react with water.Recommanded Product: 2-(2-(Hexyloxy)ethoxy)ethanol

Referemce:
Ether – Wikipedia,
Ether | (C2H5)2O – PubChem

Anchoring vs Bridging: New Findings on Polymer Additives in Bicontinuous Microemulsions was written by Maccarrone, Simona;Allgaier, Juergen;Frielinghaus, Henrich;Richter, Dieter. And the article was included in Langmuir in 2014.Electric Literature of C10H22O3 The following contents are mentioned in the article:

We show for the first time the effect of telechelic polymers as additives in bicontinuous microemulsions. We combined macroscopic observations of the phase behavior with microscopic measurements of the structure by small-angle neutron scattering (SANS) to recover the two elastic moduli, κ and κ̅, namely the bending rigidity and saddle-splay modulus. On the basis of these results, we could classify the effect of telechelic polymers along with confinement, expressed as the ratio of the polymer end-to-end distance R_ee and the oil-water domain size d. Their unique property to anchor at two points in the membrane (bridging) acts like a switch from antibooster to booster of the surfactant efficiency (between low and ultralow confinement). In the region of medium confinement, all telechelic polymers are in the bridging configuration and we have a maximum of the boosting effect, while at high confinement, the reversed behavior is found where anchoring and/or bridging do not play any role anymore. This study involved multiple reactions and reactants, such as 2-(2-(Hexyloxy)ethoxy)ethanol (cas: 112-59-4Electric Literature of C10H22O3).

2-(2-(Hexyloxy)ethoxy)ethanol (cas: 112-59-4) belongs to ethers. 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.Electric Literature of C10H22O3

Referemce:
Ether – Wikipedia,
Ether | (C2H5)2O – PubChem

Comparative study of wet and dry torrefaction of corn stalk and the effect on biomass pyrolysis polygeneration was written by Wang, Xianhua;Wu, Jing;Chen, Yingquan;Pattiya, Adisak;Yang, Haiping;Chen, Hanping. And the article was included in Bioresource Technology in 2018.Synthetic Route of C9H12O3 The following contents are mentioned in the article:

Wet torrefaction (WT) possesses some advantages over dry torrefaction (DT). In this study, a comparative anal. of torrefied corn stalk from WT and DT was conducted along with an investigation of their pyrolysis properties under optimal conditions for biomass pyrolysis polygeneration. Compared with DT, WT removed 98% of the ash and retained twice the amount of hydrogen. The impacts of DT and WT on the biomass macromol. structure was also found to be different using two-dimensional perturbation correlation IR spectroscopy (2D-PCIS). WT preserved the active hydroxyl groups and rearranged the macromol. structure to allow cellulose to be more ordered, while DT removed these active hydroxyl groups and formed inter-crosslinking structures in macromols. Correspondingly, the bio-char yield after WT was lower than DT but the bio-char quality was upgraded due to high ash removal. Furthermore, higher bio-oil yield, higher sugar content, and higher H₂ generation, were obtained after WT. This study involved multiple reactions and reactants, such as 4-Hydroxy-3-methoxyphenethanol (cas: 2380-78-1Synthetic Route of C9H12O3).

4-Hydroxy-3-methoxyphenethanol (cas: 2380-78-1) belongs to ethers. Volatile esters with characteristic odours are used in synthetic flavours, perfumes, and cosmetics. Certain volatile esters are used as solvents for lacquers, paints, and varnishes. 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.Synthetic Route of C9H12O3

Referemce:
Ether – Wikipedia,
Ether | (C2H5)2O – PubChem

Relating sensory analysis with SPME-GC-MS data for Spanish-style green table olive aroma profiling was written by Lopez-Lopez, Antonio;Sanchez, Antonio Higinio;Cortes-Delgado, Amparo;de Castro, Antonio;Montano, Alfredo. And the article was included in LWT–Food Science and Technology in 2018.Application In Synthesis of 4-Hydroxy-3-methoxyphenethanol The following contents are mentioned in the article:

The sensory profile and volatile composition of 24 samples of Spanish-style green table olives were studied by Quant. Descriptive Anal. and solid phase micro-extraction gas chromatog. coupled to mass spectrometry (SPME-GC-MS), resp., with the aim to characterize this type of table olive. The aroma of samples was described by the sensory panel using nine descriptors (lactic, green fruit, ripe fruit, grass, hay, musty, lupin, wine, and alc.). A total of 133 volatile compounds were identified in the headspace of samples. Principal component anal. (PCA) applied to both datasets showed a poor separation of samples according to cultivars, but a trend to sep. according to sampling time. Reliable partial least squares (PLS) regression models were developed for four sensory descriptors (lactic, lupin, wine, and alc.) and allowed identifying the compounds both pos. and neg. correlated to such odor sensations. Such models could be used to predict the intensity of the above-mentioned descriptors as a function of SPME-GC-MS data. This study involved multiple reactions and reactants, such as 4-Hydroxy-3-methoxyphenethanol (cas: 2380-78-1Application In Synthesis of 4-Hydroxy-3-methoxyphenethanol).

4-Hydroxy-3-methoxyphenethanol (cas: 2380-78-1) belongs to ethers. Carboxylic acid esters of low molecular weight are colourless, volatile liquids with pleasant odours, slightly soluble in water. Acyl chlorides and acid anhydrides alcoholysis is another way to produce esters. Acyl chlorides and acid anhydrides react with alcohols to produce esters. Anydrous conditions are recommended since both acyl chlorides and acid anhydrides react with water.Application In Synthesis of 4-Hydroxy-3-methoxyphenethanol

Referemce:
Ether – Wikipedia,
Ether | (C2H5)2O – PubChem

The effect of solder paste residues on RF signal integrity was written by Turbini, Laura J.;Smith, Brian A.;Brokaw, James;Williams, John;Gamalski, Jurgen. And the article was included in Journal of Electronic Materials in 2000.Synthetic Route of C10H22O3 The following contents are mentioned in the article:

Wireless devices such as pagers and cellular phones are becoming common consumer items. These products require low loss RF signal propagation which is affected by material choices and processing conditions. This paper examines the effect of a series of no-clean solder pastes on signal integrity using an RF test circuit which sends a broadband signal through a gallium arsenide antenna switch and measures its transmission using a network analyzer. The test circuit also measures signal leakage. This paper reports on two different test vehicles, one that uses a 900 MHz antenna switch, and the other that uses a 2.0 GHz antenna switch. The transmission and leakage readings were taken daily for 16-21 days while the test vehicles were under accelerated aging conditions of 85°C and 85% RH. Average values for the readings for each solder paste were plotted to provide comparison among the pastes. The comparison data clearly distinguish solder pastes that provide consistency throughout the test period from those which do not. This study involved multiple reactions and reactants, such as 2-(2-(Hexyloxy)ethoxy)ethanol (cas: 112-59-4Synthetic Route of C10H22O3).

2-(2-(Hexyloxy)ethoxy)ethanol (cas: 112-59-4) belongs to ethers. 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.Synthetic Route of C10H22O3

Referemce:
Ether – Wikipedia,
Ether | (C2H5)2O – PubChem