Category: 598-50-5

Kishore, M. V. published the artcileDevelopment of RP-HPLC method for the determination of N-methylurea content in methohexital drug substance and its validation, Application of 1-Methylurea, the main research area is N methylurea methohexital reversed phase high performance liquid chromatog.

A simple, sensitive and rapid RP-HPLC method developed and validated for the determination of residual impurity N-Methylurea at low level in Methohexital drug substance. In this method column conditions are established and optimized on Atlantis dC18, 250 mm × 4.6 mm, 5μm column with oven temperature maintaining at 40°C. 0.02M Potassium Phosphate buffer was chosen as mobile phase A and acetonitrile was selected as mobile phase B in gradient reverse phase mode. Chromatog. parameters such as flow rate of mobile phase was maintained at 0.7 mL/min, 50μl of injection volume, total runtime 35 min, were established and detected the analyte at 205 nm in the present methodol. Based on validation data, the method is found to be specific, sensitive, accurate and precise. The Limit of detection (LOD) and Limit of quantification (LOQ) for this impurity is found to be 0.002%weight/weight and 0.005%weight/weight resp. The average recovery obtained was 96.9% at four levels in twelve determinations for N-Methylurea in Methohexital drug substance. This method can be used as good quality control tool for quantization of N-Methylurea at low level. The exptl. results are discussed in detail in this research paper.

International Journal of Pharmacy and Pharmaceutical Research published new progress about Anesthetics. 598-50-5 belongs to class isoquinoline, name is 1-Methylurea, and the molecular formula is C2H6N2O, Application of 1-Methylurea.

Referemce:
Isoquinoline – Wikipedia,
Isoquinoline | C9H7N – PubChem

Vinothkumar, P. published the artcileA novel n-methylurea cyanurate single crystal: structural and physical characterizations for magneto-electronics applications, Related Products of isoquinoline, the main research area is methylurea cyanurate single crystal magnetoelectronics structural phys property.

A urea derivative of novel intermittent N-methylurea cyanurate (NMUC) crystalline salt was synthesized using methanol solvent, and thus crystals growing in same medium under the slow evaporation techniques governed by the reflux method. Mol. structure and other crystallog. parameters of grown crystalline salt was refined using SHELX program. Crystalline perfection was examined using high resolution X-ray diffraction anal. Elemental compositions of grown crystal were measured using CHNX anal. The mol. structure of the grown crystal is further confirmed by 1H and 13C NMR spectral anal. The Differential scanning calorimetric (DSC) is used to determine the sp. heat capacity of the grown crystal in the temperature range from 303 to 373 K. Hardness measurement was performed on the (100), (110) and (001) crystallog. planes of this crystal, which elucidates their hardness nature including the yield strength (σy) and elastic stiffness constant (C11) associated with the applied loads. The Laser induced threshold damage of NMUC was calculated using Nd:YAG laser. The magnetic behavior of the compound was studied through the hysteresis loop using Vibrating sample magnetometery technique. Photoconductivity anal. was used to measure the dark-current and photocurrent of grown crystal under the applied DC voltage between 20 and 400 V.

Journal of Molecular Structure published new progress about Aromaticity. 598-50-5 belongs to class isoquinoline, name is 1-Methylurea, and the molecular formula is C2H6N2O, Related Products of isoquinoline.

Referemce:
Isoquinoline – Wikipedia,
Isoquinoline | C9H7N – PubChem

Hogberg, Mona N. published the artcileCarbon-nitrogen relations of ectomycorrhizal mycelium across a natural nitrogen supply gradient in boreal forest, Application of 1-Methylurea, the main research area is boreal forest ectomycorrhizal mycelium carbon nitrogen relation; Betsele N supply gradient; boreal forest; carbon limitation; ectomycorrhizal fungi; extramatrical ectomycorrhizal mycelium; natural abundance of 13C and 15N; nitrogen limitation; stable isotope mixing model analysis.

The supply of carbon (C) from tree photosynthesis to ectomycorrhizal (ECM) fungi is known to decrease with increasing plant nitrogen (N) supply, but how this affects fungal nutrition and growth remains to be clarified. We placed mesh-bags with quartz sand, with or without an organic N (15N-, 13C-labeled) source, in the soil along a natural N supply gradient in boreal forest, to measure growth and use of N and C by ECM extramatrical mycelia. Mycelial C : N declined with increasing N supply. Addition of N increased mycelial growth at the low-N end of the gradient. We found an inverse relationship between uptake of added N and C; the use of added N was high when ambient N was low, whereas use of added C was high when C from photosynthesis was low. We propose that growth of ECM fungi is N-limited when soil N is scarce and tree belowground C allocation to ECM fungi is high, but is C-limited when N supply is high and tree belowground C allocation is low. This suggests that ECM fungi have a major role in soil N retention in nutrient-poor, but less so in nutrient-rich boreal forests.

New Phytologist published new progress about Bags (Mesh). 598-50-5 belongs to class isoquinoline, name is 1-Methylurea, and the molecular formula is C2H6N2O, Application of 1-Methylurea.

Referemce:
Isoquinoline – Wikipedia,
Isoquinoline | C9H7N – PubChem

Motloch, Petr published the artcileQuantification of cooperativity in the self-assembly of H-bonded rosettes, Name: 1-Methylurea, the main research area is triaminopyrimidine barbiturate cyanate self assembly allosteric cooperativity hydrogen bond.

The self-assembly of triaminopyrimidines with barbiturates and with cyanates was investigated in chloroform solution Equimolar mixtures of two complementary components form stable macrocyclic 3 : 3 complexes (rosettes). The thermodn. of self-assembly were quantified by using 1H NMR titrations to measure the strength of pairwise H-bonding interactions between two rosette components (K), allosteric cooperativity associated with formation of a second H-bonding interaction with each component, and the effective molarity for cyclisation of the rosette motif (EM). Pyrimidine-cyanurate interactions are an order of magnitude more favorable than pyrimidine-barbiturate interactions, so the cyanurate rosettes are significantly more stable than barbiturate rosettes. There is no allosteric cooperativity associated with rosette formation, but the chelate cooperativity quantified by the product K EM is exceptionally high (102-104), indicating that there are no other species present that compete with rosette assembly. The values of EM for rosette formation are approx. 2 M for all four rosettes studied and are not affected by differences in peripheral substituents or intrinsic H-bond strength.

Organic & Biomolecular Chemistry published new progress about Allosterism. 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

da Costa Filho, Paulo Augusto published the artcileRapid analysis of food raw materials adulteration using laser direct infrared spectroscopy and imaging, HPLC of Formula: 598-50-5, the main research area is food raw material adulteration laser direct IR spectroscopy imaging.

The objective of this study was to assess the application of the Laser Direct IR (LDIR) imaging system as a rapid screening technol. for detection, identification, and semi-quantitation of adulterants in food ingredients. Forty-five samples of skimmed milk powder, thirty-one samples of soy protein isolate, thirty-five samples of chicken meat powder, thirty-two samples of pea protein isolate and six samples of wheat flour were dry blended adulterated with nitrogen-rich compounds and bulking agents at concentrations of 1.0-15.0% (weight/weight). In addition, ten samples of skimmed milk powder were wet blended with food adulterants at 5.0% and 10.0% (weight/weight) to check the LDIR performance when different fraudulent processes are applied. The results from this study shows that LDIR can be used as a rapid untargeted screening method that are independent of adulterants to detect, identify and semi-quantify food adulterants in dry blended samples. In most samples, the technol. accurately identified all nitrogen-rich compounds and bulking agents present in the dry blended samples. In addition, the technol. shows sensitivity of 82% for samples adulterated at 1% and sensitivity from 92% to 100% for samples adulterated at �5% economic adulteration. On the other hand, the detection and identification of food adulterants in samples prepared by wet blending process was more challenging than dry blended samples because mid-IR technol. may not be sensitive enough to detect adulterants if they are dissolved or if hidden within the particles.

Food Control published new progress about Chicken meat. 598-50-5 belongs to class isoquinoline, name is 1-Methylurea, and the molecular formula is C2H6N2O, HPLC of Formula: 598-50-5.

Referemce:
Isoquinoline – Wikipedia,
Isoquinoline | C9H7N – PubChem

Jin, Lei published the artcileSimultaneous optimization of the extraction process of Yangyin Yiqi Huoxue prescription with natural deep eutectic solvents for optimal extraction yield and antioxidant activity: A comparative study of two models, Computed Properties of 598-50-5, the main research area is Yangyin Yiqi Huoxue prescription extraction optimization deep eutectic solvent; Genetic neural network; Natural deep eutectic solvents; Response surface methodology; Yangyin Yiqi Huoxue prescription; bi-objective optimization.

Natural deep eutectic solvents (NaDESs) are green and effective solvents that are used to extract 3 flavonoids from Yangyin Yiqi Huoxue prescription, a traditional Chinese prescription. A total of 6 types of NaDESs were systematically screened and evaluated for the total extraction yield of puerarin, calycosin, and formononetin by high-performance liquid chromatog. Then, a 4-factor-three-level exptl. scheme designed by the Box-Benhnken Design was applied on the basis of a single experiment to determine the extraction yield and the antioxidant property. Finally, the extraction process was optimized through response surface methodol. (RSM) and the genetic neural network (GNN), resp. The use of betaine-lactic acid as an extractant displayed significant advantages in the screening process. The optimum extraction parameters provided by GNN were as follows: water content 25% (volume/volume), liquid to material ratio 190 mg/mL, extraction time 37 min, and extraction temperature 63°C. Under this condition, the average exptl. comprehensive evaluation values of the extraction yield and antioxidant properties were 3.12 mg/g and 86.27%, and the relative deviations to the predicted values were 0.30% and 1.44%, resp. In addition, the exptl. results of GNN were better than those of RSM (p < 0.01). We found the application of GNN to be effective and credible for bi-objective optimization of extraction yields and antioxidant activity in this study. Moreover, our results provide a reference and a theor. basis for exptl. and future industrial extraction for multi-objective situations. Phytomedicine published new progress about Antioxidants. 598-50-5 belongs to class isoquinoline, name is 1-Methylurea, and the molecular formula is C2H6N2O, Computed Properties of 598-50-5.

Referemce:
Isoquinoline – Wikipedia,
Isoquinoline | C9H7N – PubChem

Adigun, Rasheed A. published the artcileRational Optimization of Dihydropyrimidinone-Quinoline Hybrids as Plasmodium falciparum Glutathione Reductase Inhibitors, Computed Properties of 598-50-5, the main research area is dihydropyrimidinone quinoline hybrid plasmodium falciparum glutathione reductase inhibitor; Antimalarial agents; Dihydropyrimidinones; Molecular docking; Rational optimization; Resistance reversal.

A series of dihydropyrimidinone-based antimalarial compounds were designed and synthesized based on the previously identified amide-based quinoline hybrids which showed good resistance reversal ability against the resistant strain of Plasmodium falciparum. The aromatic ring on the dihydropyrimidinone of the original hits was exchanged for a Me group to bring the mol. weights below 500 Da and also determine the effect of the aromatic ring count on the resistance reversal ability of the hybrids. Apart from the previously used amide bond, the hybrid linker was also extended to the triazole linker. Although the triazole linker is synthetically easier to access, the use of an amide linker seems to have an activity advantage. The synthesized compounds in addition to the previously identified hits were subjected to mol. docking particularly targeting the orthosteric site of Plasmodium falciparum glutathione reductase (PfGR) protein. The ligand with the best binding interaction was rationally optimized to increase its suitability as a competitive inhibitor against the cofactor of the PfGR. Two of the optimized ligands showed better binding affinities than the cofactor while one of the two ligands displayed hydrophobically packed correlated hydrogen-bond which is very important in maintaining the ligand stability within the protein. In silico ADME predictions of the synthesized compounds indicate that these compounds possess good pharmacokinetic properties.

ChemMedChem published new progress about Antimalarials. 598-50-5 belongs to class isoquinoline, name is 1-Methylurea, and the molecular formula is C2H6N2O, Computed Properties of 598-50-5.

Referemce:
Isoquinoline – Wikipedia,
Isoquinoline | C9H7N – PubChem

Shayestehpour, Omid published the artcileMolecular Features of Reline and Homologous Deep Eutectic Solvents Contributing to Nonideal Mixing Behavior, Product Details of C2H6N2O, the main research area is reline choline chloride urea derivative nonideal mixing MD simulation; deep eutectic solvents reline urea derivative nonideal mixing MD.

Deep eutectic solvents based on choline chloride and a series of urea derivatives are studied by mol. dynamics simulations with the aim to identify mol. features contributing to nonideal mixing behavior of these compounds In case of reline, a mixture of choline chloride and urea in 1:2 ratio, urea mols. provide sufficient hydrogen bond donor sites to take up the chloride anions into their polar network. Replacing any of the hydrogen atoms of urea by a Me group strongly pushes the anion to interact with these alkyl chains, resulting in a pos. deviation of the activity coefficients of choline chloride compared to reline. Furthermore, the oxygen atom of urea can interact with the nitrogen atom of the cation. This enables the chloride anion to move off-center of the cation toward the hydrogen atom of its hydroxyl group, possessing stronger directional Coulomb interactions than the nitrogen atom of the cation. The substitution of urea’s hydrogen atoms in cis position to the carbonyl group as in 1,3-dimethylurea, pushes the newly introduced nonpolar alkyl chains toward the nitrogen atom of the cation. This effect can be responsible for the exptl. observed increase of the activity coefficient of the urea derivative compared to urea. Addnl., indications for formation of nonpolar domains within the liquid and, thus, nanoscale segregation is visible as soon as one hydrogen atom of urea is replaced by an alkyl group.

Journal of Physical Chemistry B published new progress about Atomic charge. 598-50-5 belongs to class isoquinoline, name is 1-Methylurea, and the molecular formula is C2H6N2O, Product Details of C2H6N2O.

Referemce:
Isoquinoline – Wikipedia,
Isoquinoline | C9H7N – PubChem

Theansungnoen, Tinnakorn published the artcilePhytochemical Analysis and Antioxidant, Antimicrobial, and Antiaging Activities of Ethanolic Seed Extracts of Four Mucuna Species, HPLC of Formula: 598-50-5, the main research area is Mucuna seed extract phytochem analysis antioxidant antimicrobial antiaging activity.

The investigation into promising botanical materials for natural cosmetics is expanding due to environmental and health awareness. Here, we aimed to evaluate the phytochem. substances and the potential skin-related pharmacol. activities of four Mucuna seeds, namely M. gigantea (Willd.) DC. (MGG), M. interrupta Gagnep. (MIT), M. monosperma Wight (MMM), and M. pruriens (L.) DC. (MPR), belonging to the Fabaceae family. In methodol., the Mucuna seeds were authenticated using morphol. and mol. approaches. L-DOPA, phenolics, and flavonoid content, incorporated with HPLC and GC-MS fingerprinting analyses, were determined Then, skin-related antimicrobial, antioxidant, and antiaging activities were determined The results revealed that MPR showed the highest L-DOPA content (75.94 mg/100 mg extract), whereas MGG exhibited the highest phenolic and flavonoid content (56.73 ± 0.62 mg gallic/g extract and 1030.11 ± 3.97 mg quercetin/g extract, resp.). Only MMM and MPR could inhibit all of S. aureus, S. epidermidis, and C. albicans, but no sample could inhibit C. acnes. Furthermore, all samples demonstrated antioxidant activity. Interestingly, all Mucuna samples exhibited strong collagenase, elastase, and hyaluronidase inhibitory activities. We conclude that the ethanolic extracts of four Mucuna seeds are probably advantageous in the development of skincare cosmeceutical products.

Cosmetics published new progress about Anti-aging agents. 598-50-5 belongs to class isoquinoline, name is 1-Methylurea, and the molecular formula is C2H6N2O, HPLC of Formula: 598-50-5.

Referemce:
Isoquinoline – Wikipedia,
Isoquinoline | C9H7N – PubChem

Javed, Muhammad Aamir published the artcileStructural Modification, In Vitro, In Vivo, Ex Vivo, and In Silico Exploration of Pyrimidine and Pyrrolidine Cores for Targeting Enzymes Associated with Neuroinflammation and Cholinergic Deficit in Alzheimer’s Disease, Application In Synthesis of 598-50-5, the main research area is pyrimidine pyrrolidine tacrine derivative enzyme targets antiinflammatory Alzheimer disease; MTDL; in vivo anti-inflammatory; pyrimidine; pyrrolidine; tacrine derivative.

To obtain a multi-potent framework that can target simultaneously COX-2, 5-LOX, acetylcholinesterase (AChE), and butyrylcholinesterase (BChE) to treat neuroinflammation, a series of derivatives containing pyrimidine and pyrrolidine cores were rationally synthesized and evaluated. Pyrazoline-pyrimidine hybrid (23g), (3-acetylcoumarin derivative of pyrrolidin-1-yl)benzenesulfonamide (27), and tacrine derivatives of (pyrrolidin-1-yl)benzenesulfonamide (31, 38) displayed excellent in vitro COX-2 inhibition having IC50 value in the nanomolar range. Tacrine-pyrrolidine hybrids 36 and 38, and tacrine-pyrimidine hybrid (46) emerged as the most potent eeAChE inhibitors with IC50 values of 23, 16, and 2 nM, resp. However, compounds 27, 31, and 38 possessed excellent simultaneous and balanced inhibitory activity against all of the four tested targets and thus emerged as optimal multi-potent hybrid compounds among all of the synthesized series of the compounds In the ex vivo, transgenic animal models treated with compounds 36 and 46 displayed a significant decline in both AChE and BChE potentials in the hippocampus and cortical tissues. In anti-inflammatory activities, animals treated with compounds 36 and 46 displayed a significant % inhibition of edema induced by carrageenan and arachidonic acid. Biochem. anal. and histopathol. examination of mice liver indicate that tacrine derivatives are devoid of hepatotoxicity and neurotoxicity against SH-SY5Y neuroblastoma cell lines. In vivo acute toxicity study showed the safety of synthesized compounds up to 1000 mg/kg dose. The inhibitory manner of interaction of these potent drugs on all of the studied in vitro targets was confirmed by mol. docking investigations.

ACS Chemical Neuroscience published new progress about Alzheimer disease. 598-50-5 belongs to class isoquinoline, name is 1-Methylurea, and the molecular formula is C2H6N2O, Application In Synthesis of 598-50-5.

Referemce:
Isoquinoline – Wikipedia,
Isoquinoline | C9H7N – PubChem