Month: November 2022

On April 20, 2022, Pal, Vineet Kumar; Li, Adela Jing; Zhu, Hongkai; Kannan, Kurunthachalam published an article.HPLC of Formula: 27115-50-0 The title of the article was Diurnal variability in urinary volatile organic compound metabolites and its association with oxidative stress biomarkers. And the article contained the following:

Volatile organic compounds (VOCs) are ubiquitous environmental pollutants that are associated with birth defects, leukemia, neurocognitive deficits, reproductive impairment and cancer in humans exposed to these compounds Exposure to VOCs can be assessed by measuring their metabolites in urine. Little is known, however, about the temporal variability in urinary VOC metabolite (VOCM) concentrations within- and between-individuals. In this study, we determined the variability in the concentrations of 38 VOCMs in urine samples collected from 19 healthy individuals across a period of 44 days. We also measured seven biomarkers of oxidative stress (lipid, protein and DNA damage) in urine to assess the relationship of VOC exposure to oxidative stress. Seventeen VOCMs had detection frequencies (DFs) of >60% in urine, and we limited further data anal. to those compounds The creatinine-adjusted geometric mean concentrations of VOCMs ranged from 2.70 渭g/g to 327 渭g/g in spot and 2.60 渭g/g to 551 渭g/g in first morning void (FMV) urine samples. Calculation of the intra-class correlation coefficients (ICCs) for 17 VOCM concentrations to assess their predictability and repeatability in urinary measurements showed ranges of 0.080-0.425 in spot and 0.050-0.749 in FMV urine samples, revealing notable within-individual variability. Our results suggest that taking only single measurements of VOCM concentrations in urine in epidemiol. investigations may lead to exposure misclassification. In addition, VOCM concentrations were significantly and pos. correlated with oxidative stress biomarkers. This study thus provides important information for formulating sampling strategies in the biomonitoring of VOC exposure in human populations. The experimental process involved the reaction of 2-(4-Methylbenzamido)acetic acid(cas: 27115-50-0).HPLC of Formula: 27115-50-0

The Article related to volatile organic compound metabolite oxidative stress biomarker, benzene, biomonitoring, intra-class correlation coefficients, oxidative stress, voc, variability, Placeholder for records without volume info and other aspects.HPLC of Formula: 27115-50-0

Referemce:
Amide – Wikipedia,
Amide – an overview | ScienceDirect Topics

Szulc, Justyna; Okrasa, Malgorzata; Nowak, Adriana; Niziol, Joanna; Ruman, Tomasz; Kuberski, Slawomir published an article in 2022, the title of the article was Assessment of Physicochemical, Microbiological and Toxicological Hazards at an Illegal Landfill in Central Poland.Name: 1,3-Diphenylurea And the article contains the following content:

This study aimed to assess the physicochem., microbiol. and toxicol. hazards at an illegal landfill in central Poland. The research included the anal. of airborne dust (laser photometer), the number of microorganisms in the air, soil and leachate (culture method) and the microbial diversity in the landfill environment (high-throughput sequencing on the Illumina Miseq); the cytotoxicity (PrestoBlue) and genotoxicity (alk. comet assay) of soil and leachate were tested. Moreover, an anal. of UHPLC-Q-ToF-UHRMS (ultra-high-performance liquid chromatog.-quadrupole-time-of-flight ultrahigh-resolution mass spectrometry) was performed to determine the toxic compounds and microbial metabolites. The PM1 dust fraction constituted 99.89% and 99.99% of total dust and exceeded the threshold of 0.025 mg m-3 at the tested locations. In the air, the total number of bacteria was 9.33 x 101-1.11 x 103 CFU m-3, while fungi ranged from 1.17 x 102 to 4.73 x 102 CFU m-3. Psychrophilic bacteria were detected in the largest number in leachates (3.3 x 104 to 2.69 x 106 CFU mL-1) and in soil samples (8.53 x 105 to 1.28 x 106 CFU g-1). Bacteria belonging to Proteobacteria (42-64.7%), Bacteroidetes (4.2-23.7%), Actinobacteria (3.4-19.8%) and Firmicutes (0.7-6.3%) dominated. In the case of fungi, Basidiomycota (23.3-27.7%), Ascomycota (5.6-46.3%) and Mortierellomycota (3.1%) have the highest abundance. Bacteria (Bacillus, Clostridium, Cellulosimicrobium, Escherichia, Pseudomonas) and fungi (Microascus, Chrysosporium, Candida, Malassezia, Aspergillus, Alternaria, Fusarium, Stachybotrys, Cladosporium, Didymella) that are potentially hazardous to human health were detected in samples collected from the landfill. Tested leachates and soils were characterised by varied cyto/genotoxins. Common pesticides (carbamazepine, prometryn, terbutryn, permethrin, carbanilide, pyrethrin, carbaryl and prallethrin), quaternary ammonium compounds (benzalkonium chlorides), chems. and/or polymer degradation products (melamine, triphenylphosphate, diphenylphtalate, insect repellent diethyltoluamide, and drugs (ketoprofen)) were found in soil and leachate samples. It has been proven that the tested landfill is the source of the emission of particulate matter; microorganisms (including potential pathogens) and cyto/genotoxic compounds The experimental process involved the reaction of 1,3-Diphenylurea(cas: 102-07-8).Name: 1,3-Diphenylurea

The Article related to physicochem microbiol toxicol hazard, uhplc-q-tof-uhrms analysis, bioaerosol, harmful biological agents, illegal landfill, metagenome analysis, toxicological analysis, Placeholder for records without volume info and other aspects.Name: 1,3-Diphenylurea

Referemce:
Amide – Wikipedia,
Amide – an overview | ScienceDirect Topics

On February 24, 1983, Govindachari, Tuticorin R.; Premila, Manakkal S. published an article.Computed Properties of 456-12-2 The title of the article was Some alkaloids from Aegle marmelos. And the article contained the following:

Four new alkaloids, 4-ROC6H4ZNHCOCH:CHPh [I ; R = CH2CH:CMe2, Z = (CH2)2, CH(OH)CH2; R = H, Z = CH(OH)CH2; R = Me, Z = CH:CH], were isolated from dry leaves of A. marmelos. Also isolated were aegeline [I ; R = H, Z = CH(OH)CH2] and a purple alkaloid of unknown structure. The experimental process involved the reaction of N-(2-Hydroxy-2-(4-methoxyphenyl)ethyl)cinnamamide(cas: 456-12-2).Computed Properties of 456-12-2

The Article related to aegle alkaloid structure, Plant Biochemistry: Composition and Products and other aspects.Computed Properties of 456-12-2

Referemce:
Amide – Wikipedia,
Amide – an overview | ScienceDirect Topics

On November 2, 1981, Sharma, B. R.; Rattan, R. K.; Sharma, Perveen published an article.Recommanded Product: N-(2-Hydroxy-2-(4-methoxyphenyl)ethyl)cinnamamide The title of the article was Constituents of Aegle marmelos. Part III. Marmeline, an alkaloid, and other components of unripe fruits of Aegle marmelos. And the article contained the following:

A new alkaloid, marmeline, was isolated from unripe fruits of A. marmelos and identified as N-2-hydroxy-2-[4-(3′,3′-dimethylallyloxy)phenyl]ethyl cinnamide. Aegeline, imperatorin, alloimperatorin, and xanthotoxol were also present. The experimental process involved the reaction of N-(2-Hydroxy-2-(4-methoxyphenyl)ethyl)cinnamamide(cas: 456-12-2).Recommanded Product: N-(2-Hydroxy-2-(4-methoxyphenyl)ethyl)cinnamamide

The Article related to aegle alkaloid marmeline structure, Plant Biochemistry: Composition and Products and other aspects.Recommanded Product: N-(2-Hydroxy-2-(4-methoxyphenyl)ethyl)cinnamamide

Referemce:
Amide – Wikipedia,
Amide – an overview | ScienceDirect Topics

Jose, Sindhu; Ragunathan, V.; Arunachalam, Thangakumar; Joseph, Milesh; Madipatti, Satish published an article in 2016, the title of the article was Extraction, isolation and analytical characterisation of aegeline enantiomers from Aegle marmelos.Related Products of 456-12-2 And the article contains the following content:

Aegeline or N-[2-hydroxy-2(4-methoxyphenyl)-ethyl]-3-phenyl-2-propenamide is a main alkaloid isolated from the leaves of Aegle marmelos (bael). The plant is extensively used in the Indian traditional system of medicine viz. Ayurveda . It soothes impaired kapha, vata, body pain, poison, diarrhea, dysentery, vomiting and intermittent fever. Its leaves are known as a cure for asthma, inflammation, cough and diabetes. The leaves are trifoliate and aromatic They have a shape, intermediate between ovate and lanceolate with reticulate pinnate venation. The present work was undertaken to provide an easy and reliable method for the extraction and isolation of Aegeline (N-[2-hydroxy-2-(4-methoxyphenyl)ethyl]-3-phenyl-2-propenamide) using high performance liquid chromatog. (HPLC). The study also included the separation of the two enantiomers of Aegeline using chiral HPLC, its crystallog. structure, activity of the two enantiomers on cervical cancer and a NMR (NMR) method for the enantiomeric purity determination of collected fractions. Linear calibration curves were obtained over the range of 0.7 – 5mM for enantiomer-2 (R2 = 0.998). This study was undertaken with the intention to develop a fast and reliable method for the enantiomeric purity determination of Aegeline and related compounds The experimental process involved the reaction of N-(2-Hydroxy-2-(4-methoxyphenyl)ethyl)cinnamamide(cas: 456-12-2).Related Products of 456-12-2

The Article related to aegle leaf aegeline enantiomer anticancer, Plant Biochemistry: Composition and Products and other aspects.Related Products of 456-12-2

Referemce:
Amide – Wikipedia,
Amide – an overview | ScienceDirect Topics

Riyanto, Sugeng published an article in 2008, the title of the article was Spectral analysis of aegelin isolated from maja leaves (Aegle marmelos Corr.).Category: amides-buliding-blocks And the article contains the following content:

Aegelin is an alkaloid which isolated from Maja (Aegle marmelos Corr.) leaves. The mol. structure of the compound contains a chiral carbon atom. In our earlier publications the existence and influence of a chiral carbon atom have not been discussed yet. The existing of the chiral carbon atom gave rise two pair of doublets at 未 3.67 J=3.4 Hz and 未 3.43 J=8.5 Hz in the proton NMR spectrum. The doublets are signal of two proton which attached on adjacent atom of the chiral carbon atom which is confirmed by the two dimension NMR spectrum (HMQC). The two protons are magnetic unequivalent which cause their chem. shifts are different. The protons appear as two doublet with different J value because its couple to a proton attached at the chiral carbon atom and the spin-spin splitting is observed The existence of the two pairs of the doublets at 未 3.67 d,J=3.4 Hz and 未 3.42 d,J=8.5 Hz because the isolated aegelin from E. marmelos leaves contains of its enantiomer. The experimental process involved the reaction of N-(2-Hydroxy-2-(4-methoxyphenyl)ethyl)cinnamamide(cas: 456-12-2).Category: amides-buliding-blocks

The Article related to aegelin stereochem nmr maja leaf aegle marmelos, Plant Biochemistry: Composition and Products and other aspects.Category: amides-buliding-blocks

Referemce:
Amide – Wikipedia,
Amide – an overview | ScienceDirect Topics

Chang, Qiaoying; Ge, Lijuan; Li, Jian; Qiu, Guoyu; Wu, Fuxiang; Zhang, Hongyan; Xu, Fenghua; Zhu, Renyuan; Qi, Pengfei; Bai, Ruobin; Ren, Fazheng published an article in 2021, the title of the article was Automated QuEChERS for the determination of 482 pesticide residues in Radix codonopsis by GC-Q-TOF/MS and LC-Q-TOF/MS.COA of Formula: C13H12N2O And the article contains the following content:

A rapid procedure for the determination of 482 pesticide residues in Chinese Materia Medica by GC-Q-TOF/MS and LC-Q-TOF/MS (379 pesticides for LC, 327 pesticides for GC, and 226 pesticides for both) was developed. Radix codonopsis was chosen as the matrix for verification, and a comparative study on the QuEChERS sample preparation was carried out, between a fully automated workstation and manual operation, in terms of limits of quantitation, recovery rate and RSD at 3 spiked levels of 10渭g kg-1, 20渭g kg-1 and 100渭g kg-1. In the linear range of each pesticide in a concentration range of 5-100渭g L-1, the linear correlation coefficients R2 of 85% of the pesticides for GC and 88% for LC were equal to or greater than 0.990. Taking recovery 70-120% and RSD 鈮?20% as the satisfactory standard, the automated workstation performed better at 10渭g kg-1 and 20渭g kg-1 than manual operation, and the numbers of satisfactory pesticides of GC & LC were 401 and 418 for the automated approach, and 378 and 400 for manual, while the two approaches were almost even at 100渭g kg-1, 421 vs. 424. Besides, the automated workstation presented lower RSD (more pesticides 鈮?0%) and better recovery quality (more pesticides within 90-110%). Following the method verification, 50 Radix codonopsis samples purchased from local markets were prepared with the automated workstation and analyzed by GC and LC-Q-TOF/MS. 18 pesticides were detected in 38 samples, one of which was a highly toxic pesticide. The automated QuEChERS workstation can handle 40 samples in one cycle within 6 h, and realize whole-process automation covering from samples after “weighing” to “injection into vials”. The batch-to-batch, day-to-day, and lab-to-lab consistency and 24 x 7 workability of the automated solution have demonstrated a promising and ideal replacement for manual operation in sample preparation The experimental process involved the reaction of 1,3-Diphenylurea(cas: 102-07-8).COA of Formula: C13H12N2O

The Article related to radix codonopsis pesticide residue gcq lcq tofms, Pharmaceutical Analysis: Inorganic Compounds and other aspects.COA of Formula: C13H12N2O

Referemce:
Amide – Wikipedia,
Amide – an overview | ScienceDirect Topics