Tag: M.W=150-200

Jia, Wei published the artcileFoodomics analysis of natural aging and gamma irradiation maturation in Chinese distilled Baijiu by UPLC-Orbitrap-MS/MS, Related Products of ethers-buliding-blocks, the main research area is Baijiu gamma irradiation flavor; Aging; Baijiu; Foodomics; Gamma irradiation.

Classification of Feng-flavor Baijiu considering aging category was furnished with a comprehensive fingerprinting strategy which used UPLC-Orbitrap and foodomics, and the most discriminant 29 compounds related to aging, 15 organic acids, 8 esters as well as some carbonyl compounds were discovered. Increase of aromatic organic acids, decline of carcinogenic di-Bu phthalate and generation of numerous aromatic substances in Baijiu were caused by irradiation until the system reached a relatively stable state which needed 28 days. It is similarity of phys. and chem. reaction process of natural aging and irradiation maturation that both can facilitate flavor of base Baijiu, while the aging time can be plainly shorten utilizing irradiation for Baijiu, whose outcome has been demonstrated by LC-MS and sensory evaluation. The combination of UPLC-Orbitrap and foodomics was applied as a valid tactic to analyze a complex system and gamma irradiation can be a powerful tool to promote Baijiu aging.

Food Chemistry published new progress about Baijiu. 121-00-6 belongs to class ethers-buliding-blocks, name is 4-Hydroxy-3-tert-butylanisole, and the molecular formula is C11H16O2, Related Products of ethers-buliding-blocks.

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

Bentley, William Henry published the artcileXVIII. – On γ-phenoxy-derivatives of malonic acid and acetic acid, and various compounds used in the synthesis of these acids, Formula: C8H9ClO, the main research area is .

This paper contains a description of a number of compounds which were prepared in the course of a research, not yet completed, on the synthesis of methylisopropyltetramethylenedicarboxylic acid. This acid possesses especial interest from the fact that its formula was for a long time considered as the most probable expression of the constitution of camphoric acid.

Journal of the Chemical Society, Transactions published new progress about Esters. 622-86-6 belongs to class ethers-buliding-blocks, name is (2-Chloroethoxy)benzene, and the molecular formula is C8H9ClO, Formula: C8H9ClO.

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

Lei, Caiyu published the artcileMolecular hybridization of grape seed extract: Synthesis, structural characterization and anti-proliferative activity in vitro, Computed Properties of 121-00-6, the main research area is grape seed antiproliferative structural property; Anti-proliferation; Antioxidant; Grape seed extract; HepG2 cell; Hybridization.

The grape seed extract (GSE) hybridized with medium-chain saturated fatty acids (decanoic acid) exhibited higher lipophilicity, antioxidant activity, and anti-proliferative activity than its parents. The chem. structures of individual hybridized GSE derivatives were identified as 3′-O-decanoyl catechin, 3′-O-decanoyl epicatechin, 3′, 5′-2-O-decanoyl epigallocatechin, and 3′, 4′, 3”, 5”-4-O-decanoyl epicatechin gallate by HPLC-MS2 and 1H and 13C NMR. For growth inhibitory effect on HepG2 cells, hybridized GSE derivatives (EC50 = 44.38μg/mL) were significantly (p < 0.01) stronger than natural GSE (EC50 = 60.83μg/mL) due to increased lipophilicity. The effects of GSE derivatives on apoptosis and cell cycle in HepG2 cells were further evaluated by flow cytometry. The results showed that the percentage of apoptotic cells increased markedly in the presence of hybridized GSE derivatives Moreover, hybridized GSE derivatives were capable of inducing cell cycle arrest in G1 phase. This research suggests that hybridized GSE derivatives are effective lipophilic antioxidants and show the potential as adjuvant therapy for cancer. Food Research International published new progress about Grape. 121-00-6 belongs to class ethers-buliding-blocks, name is 4-Hydroxy-3-tert-butylanisole, and the molecular formula is C11H16O2, Computed Properties of 121-00-6.

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

Duriatti, Albert published the artcileIn vitro inhibition of animal and higher plants 2,3-oxidosqualene-sterol cyclases by 2-aza-2,3-dihydrosqualene and derivatives, and by other ammonium-containing molecules, SDS of cas: 622-86-6, the main research area is oxidosqualene sterol cyclase intermediate analog inhibitor; plant oxidosqualene sterol cyclase inhibitor; liver oxidosqualene sterol cyclase inhibitor.

2-Aza-2,3-dihydrosqualene and related mols., a series of new compounds designed as analogs of the transient carbocationic high-energy intermediate occurring in the oxirane ring opening during cyclization of 2,3-oxidosqualene, were tested in vitro as inhibitors of the microsomal 2,3-oxidosqualene cyclase of animals (rat liver) and of higher plants (maize, pea). These mols. proved to be good and specific inhibitors for the cyclases of both phyla. The inhibition is due to pos. charged species and is sensitive to steric hindrance around the N atom. 4,4,10β-Trimethyl-trans-decal-3β-ol and 4,10β-dimethyl-trans-decal-3β-ol, which have previously been described (J. A. Nelson et al., 1978) as inhibitors of the 2,3-oxidosqualene cyclase of CHO cells, were noncompetitive inhibitors of the rat liver microsomal enzyme and presented no activity towards the higher plants cyclases. Aza derivatives of these decalines, which were aimed to mimic the C-8 carbocationic intermediate occurring during later steps of the 2,3-oxidosqualene cyclization did not inhibit the cyclases. This result underlines the theor. limitations of the high-energy analog concept in designing enzyme inhibitors. Among mols. tested, 2,3-epiminosqualene was a reversible, noncompetitive inhibitor of the cyclases; similarly U18666A was a very potent inhibitor of the microsomal cyclases. In contrast, AMO 1618, a known anticholesterolemic agent reported previously to act at the level of the 2,3-oxidosqualene cyclization step, did not appear to act directly on the cyclases.

Biochemical Pharmacology published new progress about Corn. 622-86-6 belongs to class ethers-buliding-blocks, name is (2-Chloroethoxy)benzene, and the molecular formula is C8H9ClO, SDS of cas: 622-86-6.

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

Leicunaite, Jelena published the artcileLiquid chromatography and characterization of ether-functionalized imidazolium ionic liquids on mixed-mode reversed-phase/cation exchange stationary phase, HPLC of Formula: 622-86-6, the main research area is ether functionalized imidazolium ionic liquid mixed mode liquid chromatog; reversed phase cation exchange HPLC imidazolium ionic liquid.

A new series [CnOmmim]Cl of imidazolium cation-based ionic liquids (ILs), with an ether functional group on the alkyl side-chain, was prepared The possibility of analyzing the ionic liquids by HPLC was studied on mixed-mode reversed/cation exchange stationary phase with the aqueous-acetonitrile mobile phase. Elution parameters, such as retention factor, selectivity and column efficiency, were studied as functions of mobile phase composition and pH. The ILs were characterized by elemental anal., and IR, UV and 1H, 13C NMR spectroscopy.

Comptes Rendus Chimie published new progress about HPLC. 622-86-6 belongs to class ethers-buliding-blocks, name is (2-Chloroethoxy)benzene, and the molecular formula is C8H9ClO, HPLC of Formula: 622-86-6.

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

Hu, Penghui published the artcileBio-inspired iron-catalyzed oxidation of alkylarenes enables late-stage oxidation of complex methylarenes to arylaldehydes, COA of Formula: C8H11BO3, the main research area is alkylarene polymethylhydrosiloxane promoter iron catalyst selective aerobic oxidation; aryl carbonyl compound preparation.

A bio-inspired iron-catalyzed polymethylhydrosiloxane-promoted aerobic oxidation of methylarenes to arylaldehydes with high yields and selectivities was reported. Notably, this method can tolerate oxidation-labile and reactive boronic acid group, which is normally required to be transformed immediately after its introduction and represents a significant advance in the area of the chem. of organoboronic acids, including the ability to incorporate both aldehyde and ketone functionalities into unprotected arylboronic acids, a class that can be difficult to access by current means. The robustness of this protocol was demonstrated on the late-stage oxidation of complex bioactive mols., including dehydroabietic acid, Gemfibrozil, Tocopherol nicotinate, a complex polyol structure and structurally complex arylboronic acids.

Nature Communications published new progress about Air. 127972-00-3 belongs to class ethers-buliding-blocks, name is 2-Methoxy-5-methylphenylboronic acid, and the molecular formula is C8H11BO3, COA of Formula: C8H11BO3.

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

Blanco-Zubiaguirre, L. published the artcileTarget and suspect screening of substances liable to migrate from food contact paper and cardboard materials using liquid chromatography-high resolution tandem mass spectrometry, Computed Properties of 121-00-6, the main research area is food contact paper cardboard substance migration LC HRMS; Food contact paper and board materials; Liquid chromatography-high resolution mass spectrometry; Migration; Quantitative target analysis; Suspect screening; Tenax®.

This work describes the anal. of both target and non-target compounds in paper and cardboard materials together with the characterization of their migration to Tenax by means of liquid chromatog. coupled to both low (LC-QqQ) and high resolution tandem mass spectrometry (LC-q-Orbitrap), resp. To this aim, an entire anal. procedure was fully developed and validated for both matrixes: paper/cardboard and Tenax. A total of 97 chems., including photoinitiators, phthalates, biocides, antioxidants, etc., listed by the European Regulation, were found in the materials under study together with other substances not included in this list. Moreover, the majority of annotated substances were present in the simulant, giving evidence of their migration capacity. Migration percentages of 10 photoinitiators, 4 phthalates, bisphenol A, bis-(2-ethylhexyl) adipate, acetyltributyl citrate and caprolactam to Tenax were quantified. Despite not exceeding the established specific migration limit (SML) in any case, benzophenone, 4-phenylbenzophenone and bisphenol A concentrations in some paper and cardboard materials were very close to the SML values established by the EU legislation.

Talanta published new progress about Diffusion. 121-00-6 belongs to class ethers-buliding-blocks, name is 4-Hydroxy-3-tert-butylanisole, and the molecular formula is C11H16O2, Computed Properties of 121-00-6.

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

Gyori, Eniko published the artcileSupercritical CO2 extraction and selective adsorption of aroma materials of selected spice plants in functionalized silica aerogels, Product Details of C11H16O2, the main research area is supercritical CO2 extraction squalene spathulenol adsorption silica aerogel.

Static supercritical fluid extraction has been used to concentrate the aroma materials of common herbs and spices. The technique has provided a higher number of components and cleaner extract than the one-step ethanol maceration. The one-step supercritical fluid extraction of the aroma compounds has been combined with their in situ adsorption in hydrophilic and hydrophobic silica aerogels. The extracts have been analyzed by a GC-MS technique and 55 aroma compounds have been identified. Most of the compounds have been adsorbed in both polar and apolar silica aerogels with no direct connection with the surface polarity. However, previously undetected compounds enriched to an anal. significant level, while others competed with each other for the active sites on the surface. Functionalized silica aerogels can be used as a new type of aroma storage materials and as selective and tuneable adsorbents for the extraction and enrichment of potentially active components from a complex matrix.

Journal of Supercritical Fluids published new progress about Aerogels. 121-00-6 belongs to class ethers-buliding-blocks, name is 4-Hydroxy-3-tert-butylanisole, and the molecular formula is C11H16O2, Product Details of C11H16O2.

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

Ye, Zhihong published the artcileElectrochemical treatment of butylated hydroxyanisole: Electrocoagulation versus advanced oxidation, Category: ethers-buliding-blocks, the main research area is butylated hydroxyanisole electrocoagulation advanced oxidation electrochem treatment.

This work compares the removal of butylated hydroxyanisole (BHA), a ubiquitous antioxidant in food and pharmaceuticals, from water either by electrocoagulation (EC) with an Fe|Fe cell or H2O2-based electrochem. advanced oxidation processes like electrochem. oxidation (EO-H2O2), electro-Fenton (EF) and photoelectro-Fenton (PEF) with an air-diffusion cathode. BHA degradation by EC was very poor, whereas the dissolved organic carbon (DOC) was more effectively abated in urban wastewater. The effect of pH, number of Fe|Fe pairs and current on the EC performance was examined The additive was also slowly degraded by EO-H2O2 with a RuO2-based or BDD anode in 50mM Na2SO4 solution In the simulated matrix, BHA decay by EO-H2O2 was substantially enhanced owing to active chlorine generation from anodic oxidation of Cl-, whereas the ·OH-mediated oxidation at the BDD surface accounted for DOC decay. In EF and PEF, the ·OH produced in the bulk upgraded the mineralization, primordially using BDD. In raw urban wastewater at natural pH 7.9, the time course of BHA and DOC contents was affected by NOM oxidation, being accelerated in the order: EO-H2O2Category: ethers-buliding-blocks.

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

Yarkova, T. A. published the artcileQuantum-Chemical Prediction of the Redox Properties of Humic Acids, COA of Formula: C11H16O2, the main research area is humic acid antioxidant HOMO adsorption energy electrophilicity.

A comparative anal. of the reactivity indexes of the model structure of humic acids (HAs) and a number of antioxidants was carried out based on the results of quantum-chem. calculations performed using the d. functional theory (DFT) b3lyp/6-31g(d,p) method. With the use of 15 compounds as an example, it was found that the electronegativity index χ linearly correlates with the energy of the LUMO (ELUMO), R2 = 0.977. HAs (ELUMO = -2.52) are located close to mol. oxygen (ELUMO = -3.07), and this fact indicates a high electronegativity of these natural compounds It was proposed to evaluate the antioxidant ability of the organic matter of HAs by the adsorption energy of mol. oxygen. By determining the local min. of O2 sensing energy in different sections of HAs using the pm6 quantum chem. method, it was established that oxygen is adsorbed by a hydroxyl group with the energy ΔEads = -70 kcal/mol. This allows the highly reactive organic part of HAs to inhibit mol. oxygen in oxidation processes.

Solid Fuel Chemistry published new progress about Adsorption energy. 121-00-6 belongs to class ethers-buliding-blocks, name is 4-Hydroxy-3-tert-butylanisole, and the molecular formula is C11H16O2, COA of Formula: C11H16O2.

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