Month: December 2022

Tian, Ya-Ya published the artcileDegradation of prometryn in Ruditapes philippinarum using ozonation: Influencing factors, degradation mechanism, pathway and toxicity assessment, Name: 1-Methylurea, the main research area is prometryn ozone Ruditapes philippinarum absorption ozonation degradation; Degradation; Mechanism; Ozone; Prometryn; Ruditapes philippinarum.

In recent years, prometryn was utilized as watergrass remover in the aquaculture industry, resulting in the accumulated residual in the aquatic products. The present study focuses on the ozone degradation of prometryn in the Ruditapes philippinarum. The ozone concentration in water increased along with the injection time (60min). The contents of hydroxyl (·OH) and superoxide (O2·-) radicals increased along with the ozone injection time. The effects of temperature, pH, prometryn initial concentration and ozone concentration on the removal efficiency of prometryn were evaluated. The maximum removal efficiency of 86.12% was obtained under the conditions of pH 7, prometryn initial concentration 0.05 mg/kg and the ozone concentration 4.2 mg/L at 28 °C for 30 min. Ion chromatog. (IC) and Fourier transform IR (FT-IR) spectroscopy results show that the S and N atoms in the outer layer of the triazine ring during the prometryn degradation process were oxidized and removed. A total of 30 intermediate compounds were identified using the gas chromatog.-mass spectrometry (GC-MS) method. Combined with the IC and FT-IR results, three possible degradation pathways of prometryn were proposed. The prometryn was finally degraded into some small mols. with reduced toxicity by 63.16% for 120 min ozonization treatment. Overall, our work provides a novel approach for prometryn degradation in Ruditapes philippinarum, which can be extended for removing the residues of agricultural and veterinary drugs in other aquatic products.

Chemosphere published new progress about Absorption. 598-50-5 belongs to class isoquinoline, name is 1-Methylurea, and the molecular formula is C2H6N2O, Name: 1-Methylurea.

Referemce:
Isoquinoline – Wikipedia,
Isoquinoline | C9H7N – PubChem

Bian, Jianqing published the artcileN-doped graphitized porous carbon derived from N-rich polymer for improved supercapacitor performance, Safety of 3,5-Diamino-1,2,4-triazole, the main research area is potassium ferrate nitrogen doped graphitized porous carbon energy storage.

Porous carbons with the large sp. surface area, high elec. conductivity as well as abundant heteroatom doping are regarded as a promising candidate for supercapacitor applications. In this report, a facile potassium ferrate (K2FeO4) activation strategy is adopted to transform the N-rich Schiff-based polymer into N-doped graphitized porous carbons (NGPCs) by the synchronous activation and graphitization. The optimized NGPC-700-1 sample delivers a delightful capacitance of 322.7 F g-1 at 0.5 A g-1 and an excellent rate capability (79.1% capacitance retained at 50 A g-1) in 6 M KOH due to the unique laminated and porous structure with the large surface area (2123.7 m2 g-1), high porous volume (1.30 cm3 g-1) and abundant N/O dopant (6.20/8.20 at%). Moreover, the assembled sym. supercapacitor achieves a high energy d. of 21.5 W h kg-1 at the power supply of 445.5 W kg-1 in 1 M Na2SO4 electrolyte. Therefore, NGPCs derived from one-step activation/graphitization of N-rich polymer represent a promising route for preparing porous carbon materials with the high charge storage capacity and rate capability in the energy storage.

New Journal of Chemistry published new progress about Absorption. 1455-77-2 belongs to class isoquinoline, name is 3,5-Diamino-1,2,4-triazole, and the molecular formula is C2H5N5, Safety of 3,5-Diamino-1,2,4-triazole.

Referemce:
Isoquinoline – Wikipedia,
Isoquinoline | C9H7N – PubChem

Ding, Hongliang published the artcileHighly flame retardant, low thermally conducting, and hydrophobic phytic acid-guanazole-cellulose nanofiber composite foams, Related Products of isoquinoline, the main research area is phytic acid guanazole cellulose nanofiber composite foam.

Cellulose as a bio-based material has attracted increasing attention due to its excellent properties. However, cellulose is very flammable and it is necessary to impart flame retardancy to cellulose nanofiber (CNF) foams. In this work, phytic acid (PA)-guanazole (GZ)-CNF composite foams were prepared by a simple freeze-drying method. SEM images indicated that the resultant PA-GZ-CNF composite foams exhibited a hierarchical porous structure. Moreover, the introduction of PA and GZ slightly affected the thermal conducting property of CNF foams. PA-GZ-CNF composite foams possessed excellent flame retardancy with a much higher LOI value and a UL-94 V-0 rating compared to that of pure CNF foams. Moreover, the peak of the heat release rate of PA-GZ-CNF composite foams exhibited a significant decrease from 57.80 to 29.27 kW/m2 and the total heat release declined from 2.10 to 1.21 MJ/m2. PA-GZ-CNF composite foams formed a protective char layer covered on the surface, which produced less thermal decomposition volatiles and prevented the spread of pyrolysis products into the gas phase. Addnl., PA-GZ-CNF composite foams achieved hydrophobicity with a water contact angle of 104.0° after hydrophobic treatment without sacrificing their flame retardancy.

Cellulose (Dordrecht, Netherlands) published new progress about Absorption. 1455-77-2 belongs to class isoquinoline, name is 3,5-Diamino-1,2,4-triazole, and the molecular formula is C2H5N5, Related Products of isoquinoline.

Referemce:
Isoquinoline – Wikipedia,
Isoquinoline | C9H7N – PubChem

Ding, Hongliang published the artcileHighly flame retardant, low thermally conducting, and hydrophobic phytic acid-guanazole-cellulose nanofiber composite foams, Formula: C2H5N5, the main research area is phytic acid guanazole cellulose nanofiber composite foam.

Cellulose as a bio-based material has attracted increasing attention due to its excellent properties. However, cellulose is very flammable and it is necessary to impart flame retardancy to cellulose nanofiber (CNF) foams. In this work, phytic acid (PA)-guanazole (GZ)-CNF composite foams were prepared by a simple freeze-drying method. SEM images indicated that the resultant PA-GZ-CNF composite foams exhibited a hierarchical porous structure. Moreover, the introduction of PA and GZ slightly affected the thermal conducting property of CNF foams. PA-GZ-CNF composite foams possessed excellent flame retardancy with a much higher LOI value and a UL-94 V-0 rating compared to that of pure CNF foams. Moreover, the peak of the heat release rate of PA-GZ-CNF composite foams exhibited a significant decrease from 57.80 to 29.27 kW/m2 and the total heat release declined from 2.10 to 1.21 MJ/m2. PA-GZ-CNF composite foams formed a protective char layer covered on the surface, which produced less thermal decomposition volatiles and prevented the spread of pyrolysis products into the gas phase. Addnl., PA-GZ-CNF composite foams achieved hydrophobicity with a water contact angle of 104.0° after hydrophobic treatment without sacrificing their flame retardancy.

Cellulose (Dordrecht, Netherlands) published new progress about Absorption. 1455-77-2 belongs to class isoquinoline, name is 3,5-Diamino-1,2,4-triazole, and the molecular formula is C2H5N5, Formula: C2H5N5.

Referemce:
Isoquinoline – Wikipedia,
Isoquinoline | C9H7N – PubChem

Dakhale, Vishal D. published the artcilePreparation and evaluations of diatrizoate sodium liquid oral formulation, Recommanded Product: Diatrizoic Acid, the main research area is diatrizoate sodium liquid oral drug delivery system formulation.

X-ray diagnostic agents (contrast media) are widely used as adjuncts to diagnostic visualization techniques as they help to illustrate the differences between tissues by introducing them to the area of interest to increase its d. and absorption of X-rays. Diatrizoic acid is radio opaque ionic contrast media utilized orally and parentrally for symptomatic purpose. The goal of this investigation is to develop a liquid oral contrast media and evaluate the physicochem. parameter were compared with the changes in accelerated stability testing for the documentation of these plan nearby with FTIR information. Quality of final solution was evaluated with the parameters: pH, iodine iodide test and drug content. Three batches were formulated of the solution All the batches were evaluated for physicochem. parameters, pH and drug content. The formulated batches under gone stability studies, no turbidity were observed for 60 days studies. All the batches assure the reproducibility and each parameter were complying with specifications.

European Journal of Biomedical and Pharmaceutical Sciences published new progress about Absorption. 117-96-4 belongs to class isoquinoline, name is Diatrizoic Acid, and the molecular formula is C11H9I3N2O4, Recommanded Product: Diatrizoic Acid.

Referemce:
Isoquinoline – Wikipedia,
Isoquinoline | C9H7N – PubChem

Zhang, Yanfei published the artcileAromatic bromination with hydrogen production on organic-inorganic hybrid perovskite-based photocatalysts under visible light irradiation, Quality Control of 151-10-0, the main research area is platinum tantalum oxide hydrogen photocatalyst light irradiation aromatic bromination.

Aromatic bromides are important chems. in nature and chem. industries. However, their traditional synthesis routes suffer from low at. economy and pollutant formation. Herein, we show that organic-inorganic hybrid perovskite methylammonium lead bromide (MAPbBr3) nanocrystals stabilized in aqueous HBr solution can achieve simultaneous aromatic bromination and hydrogen evolution using HBr as the bromine source under visible light irradiation By hybridizing MAPbBr3 with Pt/Ta2O5 and poly(3,4-ethylenedioxythiophene) polystyrene sulfonate as electron- and hole-transporting motifs, aromatic bromides were achieved from aromatic compounds with high yield (up to 99%) and selectivity (up to 99%) with the addition of N,N-dimethylformamide or its analogs. The mechanistic studies revealed that the bromination proceeds via an electrophilic attack pathway and that HOBr may be the key intermediate in the bromination reaction.

Chinese Journal of Catalysis published new progress about Absorption. 151-10-0 belongs to class isoquinoline, name is 1,3-Dimethoxybenzene, and the molecular formula is C8H10O2, Quality Control of 151-10-0.

Referemce:
Isoquinoline – Wikipedia,
Isoquinoline | C9H7N – PubChem

Kumar, Jagdeep published the artcileOptical properties of 3-substituted indoles, Formula: C9H10O3, the main research area is phenyl ethenylindole preparation diastereoselective DFT optical property; formylindole phenyl acetic acid condensation.

The optical properties of various donor or acceptor p-Ph substituted ethenyl indoles I (R = H, OH, Cl, etc.; R1 = H, Et, acetyl, benzenesulfonyl) were studied in solvents of varying polarity using absorption, fluorescence and TDDFT methods. Ethenyl indole exhibits non-linear optical properties (NLO) in a substituent dependent manner. Compound with a strong electron-attracting substituent-, shows large NLO properties with charge transfer behavior, whereas ethenyls with moderate electron withdrawing or electron donating substituent exhibit lower NLO properties with non polar excited state. A highly dipolar excited state for p-nitro Ph substituted ethenyl indoles (μe: 18.2-27.1 debye; Δμ: 9.4-17.8 debye) is observed as compared to other ethenyls (μe: 6.6-9.5 debye; Δμ: 4.2-6.2 debye). From TDDFT study, it is shown that the HOMO-LUMO energy of ethenyl is increased with increasing the electron donating ability of the p-Ph substitution. The optical band gap of ethenyl I (R = R1 = H, II) without substitution, is decreased upon p-Ph substitution either with an electron withdrawing (Cl, NO2) or an electron donating (OCH3, OH, NH2) substituent. The compound with a strong electron accepting, p-nitrophenyl ethenyl indole I (R = NO2, R1 = H, III) shows 12 times better NLO response as compared to the reference ethenyl indole II (β: III: 115 x 10-30 esu-1 cm5, II: 9 x 10-30 esu-1 cm5). Ethenyls I (R = Cl, H, OMe, OH, NH2; R1 = H) bearing a weak or moderately electron withdrawing or electron accepting substituent, exhibit lower NLO response. The β of ethenyl is increased with increasing the order of electron withdrawing nature of Ph ring. Overall, a correlation of β with the optical band gap, ground state dipole moment, % of charge transfer in the ground and excited state is found.

RSC Advances published new progress about Absorption. 104-01-8 belongs to class isoquinoline, name is 4-Methoxyphenylacetic acid, and the molecular formula is C9H10O3, Formula: C9H10O3.

Referemce:
Isoquinoline – Wikipedia,
Isoquinoline | C9H7N – PubChem

Pavlyuk, Nazar published the artcileMg-Ni-Ga System: Phase Diagram, Structural and Hydrogenation Properties of MgNi1.25Ga0.75, MgNiGa, and Mg2NiGa3, Recommanded Product: 2,3-Dimethoxybenzaldehyde, the main research area is magnesium nickel gallium phase diagram structural hydrogenation property.

The isothermal section at 473 K of the Mg-Ni-Ga system in the entire composition regime and structural characterizations of the observed ternary phases are reported. The MgNi1+xGa1-x (x = 0.25), MgNiGa, Mg2NiGa3, Mg9-xNi6Ga14-y (x = 0.32, y = 0.84), Mg3Ni2Ga, and MgNi2Ga5 structures were solved and refined from X-ray single crystal diffraction data. MgNi1+xGa1-x (x = 0.25, Fd-3 m, a = 7.0781(2) Å) and MgNiGa (P63/mmc, a = 5.0781(3) Å, c = 8.194(1) Å) crystallize in the Laves phase MgCu2 and MgZn2 structure types, resp. Mg2NiGa3 (Cmcm, a = 5.415(1) Å, b = 8.651(1) Å, c = 8.562(2) Å, Mg2MnGa3-type) represents the orthorhombic derivative of Laves phases. Mg9-xNi6Ga14-y (x = 0.32, y = 0.84, Fd-3 m, a = 19.8621(6) Å) is isostructural with Mg35Cu24Ga53. MgNi2Ga5 (Pnnm, a = 6.2704(1) Å b = 6.6902(1) Å c = 6.0794(1) Å) crystallizes in the MgCo2Ga5-type structure which is derived from tetragonal CoGa3-type. The crystal chem. of these structures is compared and discussed. The hydrogenation properties of the MgNi1+xGa1-x (x = 0.25), MgNiGa, and Mg2NiGa3 Laves phases were studied. MgNi1.25Ga0.75 absorbs up to 2.20 weight% H2, MgNiGa absorbs up to 1.78 weight% H2, and Mg2NiGa3 absorbs up to 1.66 weight% H2.

Journal of Phase Equilibria and Diffusion published new progress about Absorption. 86-51-1 belongs to class isoquinoline, name is 2,3-Dimethoxybenzaldehyde, and the molecular formula is C9H10O3, Recommanded Product: 2,3-Dimethoxybenzaldehyde.

Referemce:
Isoquinoline – Wikipedia,
Isoquinoline | C9H7N – PubChem

Tumskiy, Roman S. published the artcileDocking and antibacterial activity of novel nontoxic 5-arylidenepyrimidine-triones as inhibitors of NDM-1 and MetAP-1, Related Products of isoquinoline, the main research area is docking antibacterial activity nontoxic arylidenepyrimidine trione inhibitor NDM MetAP; 5-arylidene barbituric acids; 5-arylidenepyrimidine-2,4,6(1H,3H,5H)-triones; ADMET; New Delhi metallo-β-lactamase-1; antibacterial activity; cytotoxicity; methionine aminopeptidase-1; molecular docking.

Antibiotic resistance, which occurs through the action of metallo-β-lactamases (NDM-1), is a serious problem in the treatment of infectious diseases. Therefore, the discovery of new NDM-1 inhibitors and promising antibacterial agents as inhibitors of alternative targets (MetAP-1) is important. In this study, a virtual library of 5-arylidene barbituric acids was created and mol. docking was performed for identification of novel possible inhibitors of NDM-1 and MetAP-1. Antibacterial activity (agar well-diffusion assay) and cytotoxicity (alamarBlue assay) of perspective compounds were evaluated. Pharmacokinetic profiles and mol. properties were predicted. We have identified possible novel inhibitors of NDM-1 and MetAP-1 with bacteriostatic activity, most of which are not cytotoxic and have potential excellent drug-likeness properties.

Future Medicinal Chemistry published new progress about Absorption. 1205-17-0 belongs to class isoquinoline, name is 2-Methyl-3-(3,4-methylenedioxyphenyl)propionaldehyde, and the molecular formula is C11H12O3, Related Products of isoquinoline.

Referemce:
Isoquinoline – Wikipedia,
Isoquinoline | C9H7N – PubChem

Sasanam, Sirinapa published the artcileProperties and volatile profile of process flavorings prepared from D-xylose with glycine, alanine or valine by direct extrusion method, COA of Formula: C13H16O, the main research area is xylose glycine alanine valine flavoring.

This study investigated the production of process flavorings by direct extrusion method using a model system consisted of 80(weight/weight) D-xylose and glycine, alanine, or valine at 20(weight/weight). The extruder′s barrel temperatures were controlled at 65, 80, and 50 °C. The aroma compounds in the obtained products were analyzed by gas chromatog.-mass-spectrometry (GC-MS). Some properties relevant for food application including solubility, water absorption index, and oil absorption capacity were also determined Characteristics and color profiles of the extruded flavorings were similar to the process flavorings obtained by conventional method (reflux method). Process flavorings using valine presented the highest L* value (lightness, 59.6), water absorption index, water solubility index, and oil absorption capacity at 3.26 and 1.76 g/g sample, and 2.72 g oil/g, resp. Use of glycine resulted in the highest frequency of just-about-right for the taste (60), while alanine gave the highest frequency for odor (53.3). The extruded flavorings exhibited sweet, sour, and meaty flavor with 13 and 12 volatile compounds from glycine and alanine. When valine, the higher mol. weight amino acid in the bitter group was used, 37 volatiles with more complex flavor profiles were found, among of which, the compound 5-methyl-2-phenylhex-2-enal, which exhibits a chocolate odor, was also present. Sweet and meaty process flavorings could be produced by direct extrusion using D-xylose and glycine, alanine, and valine, with low moisture content at only 5by weight The information obtained about their phys., taste and sensory properties, volatile profiles, are beneficial for further use in industrial applications.

Food Bioscience published new progress about Absorption. 21834-92-4 belongs to class isoquinoline, name is 5-Methyl-2-phenylhex-2-enal, and the molecular formula is C13H16O, COA of Formula: C13H16O.

Referemce:
Isoquinoline – Wikipedia,
Isoquinoline | C9H7N – PubChem