Tag: 100-200

Preparation and characterization of chitosan/pullulan film loading carvacrol for targeted antibacterial packaging of chilled meat was written by Xiao, Longquan;Kang, Shuai;Lapu, Molazi;Jiang, Peng;Wang, Xinhui;Liu, Dayu;Li, Jing;Liu, Mingxue. And the article was included in International Journal of Biological Macromolecules in 2022.Recommanded Product: 499-75-2 This article mentions the following:

In this research, the common microorganisms in chilled meat were used as the targeted antibacterial objects. Chitosan, pullulan, and carvacrol were chosen to prepare the edible antibacterial film. The effects of different concentrations of carvacrol on the microstructure, phys. properties and antibacterial properties of the films were investigated. The results showed that the antibacterial activity of chitosan/pullulan film (CS/PU) was unsatisfactory, when carvacrol was added, the antibacterial activity of the chitosan/pullulan/carvacrol film (CS/PU/CAR) improved significantly (p < 0.05), and the water vapor permeability (WVP) of the CS/PU/CAR decreased significantly (p < 0.05). When the carvacrol concentration was higher than 1.25% (w/v), the tensile strength and percentage elongation at break of the CS/PU/CAR increased significantly (p < 0.05), and the CS/PU/CAR exhibited satisfying antibacterial activity against the common bacteria in chilled meat such as Pseudomonas fluorescens, Listeria monocytogenes, Escherichia coli, Pseudomonas putida, Enterobacter cloacae, and Staphylococcus aureus. Finally, the CS/PU/CAR film was applied to the preservation of chilled goat meat and extended the shelf life of goat meat to more than 15 days. These results suggested that the targeted CS/PU/CAR film can be used as biodegradable films for the active packaging of chilled meat. In the experiment, the researchers used many compounds, for example, 5-Isopropyl-2-methylphenol (cas: 499-75-2Recommanded Product: 499-75-2).

5-Isopropyl-2-methylphenol (cas: 499-75-2) belongs to alcohols. A strong base can deprotonate an alcohol to yield an alkoxide ion (R―O−). For example, sodamide (NaNH2), a very strong base, abstracts the hydrogen atom of an alcohol. Grignard and organolithium reagents are powerful tools for organic synthesis, and the most common products of their reactions are alcohols.Recommanded Product: 499-75-2

Referemce:
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts

A Catalytic Route to Ampakines and Their Derivatives was written by Mulzer, Michael;Coates, Geoffrey W.. And the article was included in Organic Letters in 2011.HPLC of Formula: 42514-50-1 This article mentions the following:

A catalytic domino reaction that efficiently provides access to an important class of heterocycles, the ampakines, e.g., I is reported. The current approach is based on the cobalt-catalyzed hydroformylation of dihydrooxazines and allows for the facile synthesis of the pharmaceutically interesting compound CX-614 and related substances. In the experiment, the researchers used many compounds, for example, 3-Amino-3-methylbutan-1-ol (cas: 42514-50-1HPLC of Formula: 42514-50-1).

3-Amino-3-methylbutan-1-ol (cas: 42514-50-1) belongs to alcohols. Similar to water, an alcohol can be pictured as having an sp3 hybridized tetrahedral oxygen atom with nonbonding pairs of electrons occupying two of the four sp3 hybrid orbitals. Converting an alcohol to an alkene requires removal of the hydroxyl group and a hydrogen atom on the neighbouring carbon atom. Dehydrations are most commonly carried out by warming the alcohol in the presence of a strong dehydrating acid, such as concentrated sulfuric acid.HPLC of Formula: 42514-50-1

Referemce:
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts

Natural deep eutectic solvent modified nanofiltration membranes with superior antifouling properties for pharmaceutical wastewater treatment was written by Moradi, Golshan;Rahimi, Masoud;Zinadini, Sirus;Shamsipur, Mojtaba;Babajani, Nasrin. And the article was included in Chemical Engineering Journal (Amsterdam, Netherlands) in 2022.HPLC of Formula: 2216-51-5 This article mentions the following:

Herein, the L-menthol/10-camphorsulfonic acid (L-M/CSA) natural deep eutectic solvent (NDES) was introduced as an innovative modifier for polyethersulfone (PES) nanofiltration (NF) membrane. Four membranes with different L-M/CSA NDES loadings (0, 0.2, 0.6, and 1 wt%) were prepared and characterized to evaluate the influence of L-M/CSA NDES on the properties of the membranes. The modified membrane with 0.2 wt% L-M/CSA NDES (M-0.2NDES) showed the pure water flux (PWF) of 111.5 L/m2h, which was about 7 times higher than that of the control membrane (M-0NDES). Meanwhile, the mean pore radius was increased from 0.7 nm for the M-0NDES membrane to 0.85 nm for the M-0.2NDES membrane, indicating the good pore forming capability of L-M/CSA NDES. Benefiting from L-M/CSA NDES blending, the modified membranes showed excellent removal efficiency to ceftriaxone (CTX) and amoxicillin (AMOX) solutions Particularly, the M-0.2NDES membrane possessed 99.6 and 99.2% rejection to CTX and AMOX, resp., with permeated flux up to about 111 L/m2h, which was far better than the data reported in the literature. M-0.2NDES membrane showed 89.1% COD (COD), 100% turbidity, and 51.6% total dissolved solids (TDS) removal from the industrial pharmaceutical wastewater. Blending with L-M/CSA NDES was also confirmed to be crucial to ameliorate the membrane antifouling properties. The related results revealed that the flux recovery ratio (FRR) of the M-0.2NDES membrane for milk solution reached 90.2%. The facile fabrication method of L-M/CSA NDES from green materials, good pore forming capability, enhanced antifouling properties, together with the efficient pharmaceuticals removal indicated the good prospect of L-M/CSA NDES for membrane separation applications. In the experiment, the researchers used many compounds, for example, (1R,2S,5R)-2-Isopropyl-5-methylcyclohexanol (cas: 2216-51-5HPLC of Formula: 2216-51-5).

(1R,2S,5R)-2-Isopropyl-5-methylcyclohexanol (cas: 2216-51-5) belongs to alcohols. Alcohols are among the most common organic compounds. They are used as sweeteners and in making perfumes, are valuable intermediates in the synthesis of other compounds, and are among the most abundantly produced organic chemicals in industry. Grignard and organolithium reagents are powerful tools for organic synthesis, and the most common products of their reactions are alcohols.HPLC of Formula: 2216-51-5

Referemce:
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts

Characterization of Aminobenzylphenols as Protein Disulfide Isomerase Inhibitors in Glioblastoma Cell Lines was written by Shergalis, Andrea;Xue, Ding;Gharbia, Fatma Z.;Driks, Hannah;Shrestha, Binita;Tanweer, Amina;Cromer, Kirin;Ljungman, Mats;Neamati, Nouri. And the article was included in Journal of Medicinal Chemistry in 2020.Electric Literature of C7H6O3 This article mentions the following:

Disulfide bond formation is a critical post-translational modification of newly synthesized polypeptides in the oxidizing environment of the endoplasmic reticulum and is mediated by protein disulfide isomerase (PDIA1). In this study, we report a series of α-aminobenzylphenol analogs as potent PDI inhibitors. The lead compound, AS15, is a covalent nanomolar inhibitor of PDI, and the combination of AS15 analogs with glutathione synthesis inhibitor buthionine sulfoximine (BSO) leads to synergistic cell growth inhibition. Using nascent RNA sequencing, we show that an AS15 analog triggers the unfolded protein response in glioblastoma cells. A BODIPY-labeled analog binds proteins including PDIA1, suggesting that the compounds are cell-permeable and reach the intended target. Taken together, these findings demonstrate an extensive biochem. characterization of a novel series of highly potent reactive small mols. that covalently bind to PDI. In the experiment, the researchers used many compounds, for example, Benzo[d][1,3]dioxol-4-ol (cas: 69393-72-2Electric Literature of C7H6O3).

Benzo[d][1,3]dioxol-4-ol (cas: 69393-72-2) belongs to alcohols. Alcohols are among the most common organic compounds. They are used as sweeteners and in making perfumes, are valuable intermediates in the synthesis of other compounds, and are among the most abundantly produced organic chemicals in industry. Tertiary alcohols cannot be oxidized at all without breaking carbon-carbon bonds, whereas primary alcohols can be oxidized to aldehydes or further oxidized to carboxylic acids.Electric Literature of C7H6O3

Referemce:
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts

Asymmetric cross Rauhut-Currier reactions of vinyl ketones with carbonyl para-quinone methides via phosphine catalysis was written by Lu, Yue;He, Ningtao;Miao, Xiaohe;Wang, De. And the article was included in Organic Chemistry Frontiers in 2022.Safety of (1R,2S,5R)-2-Isopropyl-5-methylcyclohexanol This article mentions the following:

Novel cross Rauhut-Currier reactions involving chiral phosphine catalysis between vinyl ketones and terminal-carbonyl-substituted para-quinone methides have been presented. This reaction approach showed broad substrate scope compatibility and moderate-to-excellent enantioselectivity control. The multifunctional products could be easily transformed to important and useful skeletons. Moreover, natural-product and drug derivatives were well tolerated in this methodol., exhibiting the promising applications of this reaction approach. In the experiment, the researchers used many compounds, for example, (1R,2S,5R)-2-Isopropyl-5-methylcyclohexanol (cas: 2216-51-5Safety of (1R,2S,5R)-2-Isopropyl-5-methylcyclohexanol).

(1R,2S,5R)-2-Isopropyl-5-methylcyclohexanol (cas: 2216-51-5) belongs to alcohols. Because alcohols are easily synthesized and easily transformed into other compounds, they serve as important intermediates in organic synthesis. Grignard and organolithium reagents are powerful tools for organic synthesis, and the most common products of their reactions are alcohols.Safety of (1R,2S,5R)-2-Isopropyl-5-methylcyclohexanol

Referemce:
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts

Volatile and glycosidically bound composition of Loureiro and Alvarinho wines was written by Oliveira, J. M.;Oliveira, P.;Baumes, R. L.;Maia, M. O.. And the article was included in Food Science and Technology International (London, United Kingdom) in 2008.Synthetic Route of C10H22O3 This article mentions the following:

Composition of Loureiro and Alvarinho wines from the Vinhos Verdes region, regarding free volatile compounds as well as glycosidically bound aroma precursors, was exhaustively determined by gas chromatog.-mass spectrometry after adsorption on XAD-2 resin. On the whole, were identified and quantified 120 volatile compounds in the free fraction and 77 glycosidically bound compounds, belonging to C₆-compounds, alcs., fatty acids Et esters, esters of organic acids, acetates, monoterpenic alcs., monoterpenic oxides and diols, C₁₃-norisoprenoids, volatile phenols, volatile fatty acids, and carbonyl compounds Globally, the wines of the two cultivars present similar composition on volatiles. However, regarding varietal compounds, Loureiro wines were richer than Alvarinho ones with respect to C₆-compounds and monoterpenic compounds, occurring the opposite for volatile phenols. It was also demonstrated that wines of both varieties might benefit the aroma reserve, present as glycoconjugates, as it is susceptible of being technol. explored. Linalool, Ho-trienol, (α-terpineol, contributing with fruity and floral notes, and (β-damascenone mostly for Alvarinho, confering tropical fruit notes, are the varietal compounds which may particularly influence the aroma of these wines. Respecting fermentative compounds, Alvarinho is also particularly rich in fatty acids Et esters related to lipid metabolism and acetates of fusel alcs., which can provide it a fruity character; Loureiro contains higher levels of esters of organic acids and 2-phenylethanol, conferring fruity and floral notes. Sensory anal. agreed with chem. analyses showing a pronounced tree and tropical fruit character for Alvarinho wines while Loureiro wines present more intense citrus fruit notes. In the experiment, the researchers used many compounds, for example, rel-(1s,4s)-4-(2-Hydroxypropan-2-yl)-1-methylcyclohexanol hydrate (cas: 2451-01-6Synthetic Route of C10H22O3).

rel-(1s,4s)-4-(2-Hydroxypropan-2-yl)-1-methylcyclohexanol hydrate (cas: 2451-01-6) belongs to alcohols. Alcohols are weak acids. The most acidic simple alcohols (methanol and ethanol) are about as acidic as water, and most other alcohols are somewhat less acidic. Tertiary alcohols cannot be oxidized at all without breaking carbon-carbon bonds, whereas primary alcohols can be oxidized to aldehydes or further oxidized to carboxylic acids.Synthetic Route of C10H22O3

Referemce:
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts

Tolerant-to-methanol cathodic electrocatalysts based on organometallic clusters was written by Grinberg, V. A.;Pasynskii, A. A.;Kulova, T. L.;Maiorova, N. A.;Skundin, A. M.;Khazova, O. A.;Law, C. G.. And the article was included in Russian Journal of Electrochemistry in 2008.Application In Synthesis of Sodium 2-methyl-2-propanethiolate This article mentions the following:

A new approach to the fabrication of catalytic systems based on hetero- and homometal-chalcogenide clusters of Pt-M-X type (M = Fe, Mn; and X = S, Se, Te), which provides the reproducibility of catalyst composition and uniform distribution of catalyst over the carbon support, is proposed. Thus obtained catalysts are characterized using the XRD, TEM, and EDAX methods. The electrocatalytic activity of these systems in the oxygen reduction reaction, the role of the nature of chalcogenide atom and the atom of the second metal, which is the platinum partner, and the electrochem. behavior of nonplatinum chalcogenide systems are studied. In the experiment, the researchers used many compounds, for example, Sodium 2-methyl-2-propanethiolate (cas: 29364-29-2Application In Synthesis of Sodium 2-methyl-2-propanethiolate).

Sodium 2-methyl-2-propanethiolate (cas: 29364-29-2) belongs to alcohols. Alcohols are among the most common organic compounds. They are used as sweeteners and in making perfumes, are valuable intermediates in the synthesis of other compounds, and are among the most abundantly produced organic chemicals in industry. A multistep synthesis may use Grignard-like reactions to form an alcohol with the desired carbon structure, followed by reactions to convert the hydroxyl group of the alcohol to the desired functionality.Application In Synthesis of Sodium 2-methyl-2-propanethiolate

Referemce:
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts

Exploration of key aroma active compounds in strong flavor Baijiu during the distillation by modern instrument detection technology combined with multivariate statistical analysis methods was written by He, Fei;Yang, Shiqi;Zhang, Guihu;Xu, Ling;Li, Hehe;Sun, Jinyuan;Huang, Mingquan;Zheng, Fuping;Sun, Baoguo. And the article was included in Journal of Food Composition and Analysis in 2022.Quality Control of Oct-1-en-3-ol This article mentions the following:

Liquid-liquid microextraction (LLME) combined with gas chromatog.-mass spectrometry (GC-MS) and headspace-gas chromatog.-ion mobility spectrometry (HS-GC-IMS) were used to detect the variations in volatile compounds during the distillation process of strong flavor raw Baijiu. The 3D fingerprint spectrum clearly showed a variation in volatile compounds from different distillation stages, and most alc.-soluble and low mol. weight compounds showed a downward trend with the extension of distillation time, but water-soluble, high mol. weight and high boiling compounds showed the opposite result. Then, 50 aroma compounds were sniffed and identified by gas chromatog.-olfactometry-mass spectrometry (GC-O-MS) and multivariate statistical anal. including principal component anal. (PCA) and partial least squares discriminant anal. (PLS-DA) confirmed four aroma active markers related to classification. Finally, the receiver operating characteristic (ROC) curve was further used to verify that Et butanoate and Et hexanoate were the most effective difference marker to distinguish the head Baijiu samples and butanoic acid was the most effective difference marker for distinguishing the heart Baijiu samples from the tail Baijiu samples. In the experiment, the researchers used many compounds, for example, Oct-1-en-3-ol (cas: 3391-86-4Quality Control of Oct-1-en-3-ol).

Oct-1-en-3-ol (cas: 3391-86-4) belongs to alcohols. Because alcohols are easily synthesized and easily transformed into other compounds, they serve as important intermediates in organic synthesis. Under carefully controlled conditions, simple alcohols can undergo intermolecular dehydration to give ethers. This reaction is effective only with methanol, ethanol, and other simple primary alcohols.Quality Control of Oct-1-en-3-ol

Referemce:
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts

Comparison of Chirasil-DEX CB as gas chromatographic and ULMO as liquid chromatographic chiral stationary phase for enantioseparation of aryl- and heteroarylcarbinols was written by Uray, G.;Stampfer, W.;Fabian, W. M. F.. And the article was included in Journal of Chromatography, A in 2003.COA of Formula: C8H9ClO This article mentions the following:

For a broad spectrum of simple chiral alcs., incorporating a (substituted) (het)aryl building block, enantiomer separation characteristics are reported for both gas chromatog. on a Chirasil-DEX phase, and liquid chromatog. on an (S,S)-ULMO phase. On this chiral Pirkle-type phase, homochiral enantiomers (mostly R) are eluted 1st without exception. The elution order R before S appears conserved as a rule also for gas chromatog. separations on Chirasil-DEX, though with some remarkable exceptions indicating a change in the dominant discriminative mechanism. This was shown in the homologous series 1-phenylethanol to 1-phenylhexanol having the point of reversal at C4, while the o-methoxy analogs elute from C1 to C4 already in the reversed order. In the experiment, the researchers used many compounds, for example, (R)-1-(3-Chlorophenyl)ethanol (cas: 120121-01-9COA of Formula: C8H9ClO).

(R)-1-(3-Chlorophenyl)ethanol (cas: 120121-01-9) belongs to alcohols. Alcohols are weak acids. The most acidic simple alcohols (methanol and ethanol) are about as acidic as water, and most other alcohols are somewhat less acidic. The most common reactions of alcohols can be classified as oxidation, dehydration, substitution, esterification, and reactions of alkoxides.COA of Formula: C8H9ClO

Referemce:
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts

Enhancing conformational flexibility of dendronized triphenylene via diethylene glycol linkers lowers transitions of helical columnar, Frank-Kasper, and quasicrystal phases was written by Imam, Mohammad R.;Peterca, Mihai;Xiao, Qi;Percec, Virgil. And the article was included in Giant in 2022.HPLC of Formula: 111-46-6 This article mentions the following:

A library of triphenylene (Tp) dendronized with self-assembling dendrons via a diethylene glycol linker was synthesized and the corresponding self-organizations were analyzed. They self-organize via a crown conformation in helical columns and spherical helixes that produce hexagonal columnar, Frank-Kasper and soft quasicrystal assemblies. The same self-organizations are produced in the absence of the diethylene glycol linker except that the phase transitions and isotropization temperatures occur at lower temperatures in the presence of the linker. The incorporation of the flexible diethylene glycol linker induces also strong π-π stacking in helical columns. Spherical helixes are spherical distorted short fragments of helical columns and therefore the same principles determine the thermal stability of the hexagonal columnar and of Frank-Kasper and quasicrystal assemblies except that the length of the supramol. backbone is much longer in helical columns. A comparison of these systems with side-chain liquid crystals indicates that supramol. dendrimers are stabilized by extended supramol. backbone conformations. This result suggests pathways to molecularly engineer phase transitions of supramol. dendrimers self-organized from crown conformations. In the experiment, the researchers used many compounds, for example, 2,2′-Oxybis(ethan-1-ol) (cas: 111-46-6HPLC of Formula: 111-46-6).

2,2′-Oxybis(ethan-1-ol) (cas: 111-46-6) belongs to alcohols. Alkyl halides are often synthesized from alcohols, in effect substituting a halogen atom for the hydroxyl group. Under carefully controlled conditions, simple alcohols can undergo intermolecular dehydration to give ethers. This reaction is effective only with methanol, ethanol, and other simple primary alcohols.HPLC of Formula: 111-46-6

Referemce:
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts