Month: November 2022

Network Analysis of the Herb-Drug Interactions of Citrus Herbs Inspired by the “Grapefruit Juice Effect” was written by Lu, Jintao;Zhang, Dan;Zhang, Xiaomeng;Sa, Rina;Wang, Xiaofang;Wu, Huanzhang;Lin, Zhijian;Zhang, Bing. And the article was included in ACS Omega in 2022.Formula: C10H20O2 The following contents are mentioned in the article:

This study was performed to investigate the herb-drug interactions (HDIs) of citrus herbs (CHs), which was inspired by the “grapefruit (GF) juice effect”. Based on network anal., a total of 249 components in GF and 159 compounds in CHs exhibited great potential as active ingredients. Moreover, 360 GF-related genes, 422 CH-related genes, and 111 genes associated with drug transport and metabolism were collected, while 25 and 26 overlapping genes were identified. In compound-target networks, the degrees of naringenin, isopimpinellin, apigenin, sinensetin, and isoimperatorin were higher, and the results of protein-protein interaction indicated the hub role of UGT1A1 and CYP3A4. Conventional drugs such as erlotinib, nilotinib, tamoxifen, theophylline, venlafaxine, and verapamil were associated with GF and CHs via multiple drug transporters and drug-metabolizing enzymes. Remarkably, GF and CHs shared 48 potential active compounds, among which naringenin, tangeretin, nobiletin, and apigenin possessed more interactions with targets. Drug metabolism by cytochrome P 450 stood out in the mutual mechanism of GF and CHs. Mol. docking was utilized to elevate the protein-ligand binding potential of naringenin, tangeretin, nobiletin, and apigenin with UGT1A1 and CYP3A4. Furthermore, in vitro experiments demonstrated their regulating effect. Overall, this approach provided predictions on the HDIs of CHs, and they were tentatively verified through mol. docking and cell tests. Moreover, there is a demand for clin. and exptl. evidence to support the prediction. This study involved multiple reactions and reactants, such as Octyl acetate (cas: 112-14-1Formula: C10H20O2).

Octyl acetate (cas: 112-14-1) belongs to esters. Carboxylic acid esters of low molecular weight are colourless, volatile liquids with pleasant odours, slightly soluble in water. Liquid esters of low volatility serve as softening agents for resins and plastics. Esters also include many industrially important polymers. Polymethyl methacrylate is a glass substitute sold under the names Lucite and Plexiglas; polyethylene terephthalate is used as a film (Mylar) and as textile fibres sold as Terylene, Fortrel, and Dacron.Formula: C10H20O2

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

Profiling of volatile compounds in Japanese sake stored in sherry casks using solid phase microextraction/gas chromatography/mass spectrometry analysis was written by Taniguchi, Moyu;Furuno, Masahiro;Yamada, Tasuku;Kawamura, Kazuhiro;Fukusaki, Eiichiro. And the article was included in Journal of Bioscience and Bioengineering in 2021.Recommanded Product: Isopentyl hexanoate The following contents are mentioned in the article:

The combination of solid phase microextraction (SPME) and gas chromatograph-mass spectrometer (GC-MS) is frequently used for comprehensive anal. of aroma components in foods because it can be used to easily analyze volatile components, allowing saving of the amount of solvent used. In this study, SPME-GC-MS anal. of sake samples before and after sherry cask storage was performed to investigate the special flavor derived from sherry cask storage. A GC column with polyethylene glycol as the stationary phase, which is the first choice for volatile component anal., was used. However, the peak of the acid having a carbonyl group was tailed due to its bond with the hydroxyl group of the stationary phase. In the anal. of sake samples, a large and tailing peak derived from the large amount of fatty acids in Japanese sake was observed Addnl., it was not possible to analyze other co-eluting components. To overcome this problem, a novel extraction condition was examined using SPME and tris (hydroxymethyl) aminomethane (Tris). By adding Tris solution to sake, the fatty acid peak was removed successfully, thereby facilitating anal. of the peaks of compounds co-eluting with fatty acids and comprehensive anal. of the aroma components in sake. Furthermore, a comparative anal. of sake before and after storage in sherry cask showed that levels of fatty alcs., organic acid esters, fatty acid esters, and terpenes increased significantly after storage in sherry cask, suggesting that these ingredients might constitute the special flavor of sherry cask-stored sake. This study involved multiple reactions and reactants, such as Isopentyl hexanoate (cas: 2198-61-0Recommanded Product: Isopentyl hexanoate).

Isopentyl hexanoate (cas: 2198-61-0) belongs to esters. Esters are widespread in nature and are widely used in industry. In nature, fats are in general triesters derived from glycerol and fatty acids. Esters are responsible for the aroma of many fruits. Liquid esters of low volatility serve as softening agents for resins and plastics. Esters also include many industrially important polymers. Polymethyl methacrylate is a glass substitute sold under the names Lucite and Plexiglas; polyethylene terephthalate is used as a film (Mylar) and as textile fibres sold as Terylene, Fortrel, and Dacron.Recommanded Product: Isopentyl hexanoate

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

Detection of prohibited treatment products on racing tires using headspace solid phase microextraction (SPME) and gas chromatography/mass spectrometry (GC/MS) was written by Kranz, W. D.;Carroll, C. J.;Goodpaster, J. V.. And the article was included in Analytical Methods in 2016.Electric Literature of C15H22O2 The following contents are mentioned in the article:

A variety of com. tire treatments are available that purport to help automobile tires better cling to the surface of a road or racetrack, raising concerns in the professional racing community that such products might be used to illicitly boost performance in competitive events. These tire treatments are reputed to cut lap times and improve handling and maneuverability. In some cases, the manufacturers even boast that their products are “undetectable” (i.e., impervious to the scrutiny of laboratory testing). In this study, a number of banned tire treatment products were evaluated principally by gas chromatog.-mass spectrometry (GC-MS) using solid phase microextraction (SPME) as a pre-concentration technique. The chems. off-gassed by each product were determined and grouped into two broad categories: ‘plasticizer-based’ tire treatment products and ‘hydrocarbon-based’ tire treatment products. This information was then applied to the anal. of genuine tire samples provided by the United States Auto Club (USAC), a professional racing association Over the course of one year, 10 out of the 71 questioned samples tested pos. for a prohibited treatment product. The manufacturers’ claims regarding their products’ invisibility to lab tests were largely proven to be unfounded: both the products themselves and the tires treated with them can be identified by a number of characteristic volatile compounds These included known plasticizers such as pentanedioic acid di-Et ester, plasticizer-related compounds such as 2-ethyl-1-hexanol, and dearomatized distillates. This study involved multiple reactions and reactants, such as 2-Ethylhexyl benzoate (cas: 5444-75-7Electric Literature of C15H22O2).

2-Ethylhexyl benzoate (cas: 5444-75-7) belongs to esters. Esters are widespread in nature and are widely used in industry. In nature, fats are in general triesters derived from glycerol and fatty acids. Esters are responsible for the aroma of many fruits. Esterification is the general name for a chemical reaction in which two reactants (typically an alcohol and an acid) form an ester as the reaction product. Esters are common in organic chemistry and biological materials.Electric Literature of C15H22O2

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

Wettability and availability of drugs was written by Lagas, M.. And the article was included in Pharmaceutisch Weekblad in 1982.HPLC of Formula: 5003-48-5 The following contents are mentioned in the article:

Water did not penetrate pellets prepared from powd. phenytoin  [57-41-0] or hexobarbital (I) [56-29-1], whereas aqueous solutions of the surfactant, polysorbate 80  [9005-65-6], penetrated at a rate which depended on the polysorbate concentration (0.1-1.0%). If the drugs were rendered hydrophilic by prior mixing of the powder with a 3% Me cellulose  [9004-67-5] solution and drying before compression, penetration of water, surfactant solutions, or gastric juice was practically instantaneous. The disintegration time of hard gelatin capsules containing I was 2 h in water, 15 min in 1% polysorbate 80, and 3 min (corresponding to the gelatin dissolution time) for hydrophilic I independent of the polysorbate concentration Similarly, the dissolution rate of the I capsules was increased by polysorbate and was greatest for hydrophilic I. In human subjects, 100% disintegration of capsules of hydrophilic benorilate  [5003-48-5] occurred in the stomach within 60 min, as detected by release of a ^99mTc label; disintegration of nonhydrophilic benorilate capsules was very slow. Absorption of I, phenytoin, and benorilate in humans was more rapid and resulted in higher plasma concentrations when the drugs were administered in capsules in the hydrophilic than in the nonhydrophilic forms. This study involved multiple reactions and reactants, such as 4-Acetamidophenyl 2-acetoxybenzoate (cas: 5003-48-5HPLC of Formula: 5003-48-5).

4-Acetamidophenyl 2-acetoxybenzoate (cas: 5003-48-5) belongs to esters. Esters are widespread in nature and are widely used in industry. In nature, fats are in general triesters derived from glycerol and fatty acids. Esters are responsible for the aroma of many fruits. Many esters have the potential for conformational isomerism, but they tend to adopt an s-cis (or Z) conformation rather than the s-trans (or E) alternative, due to a combination of hyperconjugation and dipole minimization effects. The preference for the Z conformation is influenced by the nature of the substituents and solvent, if present. Lactones with small rings are restricted to the s-trans (i.e. E) conformation due to their cyclic structure.HPLC of Formula: 5003-48-5

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

Comparison between multi-linear- and radial-basis-function-neural-network-based QSPR models for the prediction of the critical temperature, critical pressure and acentric factor of organic compounds was written by Banchero, Mauro;Manna, Luigi. And the article was included in Molecules in 2018.SDS of cas: 763-69-9 The following contents are mentioned in the article:

Critical properties and acentric factor are widely used in phase equilibrium calculations but are difficult to evaluate with high accuracy for many organic compounds Quant. Structure-Property Relationship (QSPR) models are a powerful tool to establish accurate correlation between mol. properties and chem. structure. QSPR multi-linear (MLR) and radial basis-function-neural-network (RBFNN) models have been developed to predict the critical temperature, critical pressure and acentric factor of a database of 306 organic compounds RBFNN models provided better data correlation and higher predictive capability (an AAD% of 0.92-2.0% for training and 1.7-4.8% for validation sets) than MLR models (an AAD% of 3.2-8.7% for training and 6.2-12.2% for validation sets). The RMSE of the RBFNN models was 20-30% of the MLR ones. The correlation and predictive performances of the models for critical temperature were higher than those for critical pressure and acentric factor, which was the most difficult property to predict. However, the RBFNN model for the acentric factor resulted in the lowest RMSE with respect to previous literature. The close relationship between the three properties resulted from the selected mol. descriptors, which are mostly related to mol. electronic charge distribution or polar interactions between mols. QSPR correlations were compared with the most frequently used group-contribution methods over the same database of compounds: although the MLR models provided comparable results, the RBFNN ones resulted in significantly higher performance. This study involved multiple reactions and reactants, such as Ethyl 3-ethoxypropanoate (cas: 763-69-9SDS of cas: 763-69-9).

Ethyl 3-ethoxypropanoate (cas: 763-69-9) belongs to esters. Esters are also usually derived from carboxylic acids. It may also be obtained by reaction of acid anhydride or acid halides with alcohols or by the reaction of salts of carboxylic acids with alkyl halides. Cyclic esters are called lactones, regardless of whether they are derived from an organic or inorganic acid. One example of an organic lactone is γ-valerolactone.SDS of cas: 763-69-9

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

GCMS profile of bioactive secondary metabolites with therapeutic potential in the ethanolic leaf extracts of Azadirachta indica: a sacred traditional medicinal plant of INDIA was written by Loganathan, T.;Barathinivas, A.;Soorya, C.;Balamurugan, S.;Nagajothi, T. G.;Ramya, S.;Jayakumararaj, R.. And the article was included in Journal of Drug Delivery and Therapeutics in 2021.Quality Control of Isopropylisothiocyanate The following contents are mentioned in the article:

Neem (Azadirachta indica) a member of Meliaceae plays an immense role in human health and disease which is attributed to its composition of Bioactive Secondary Metabolites (BASM). It has been widely used in Indian Traditional Systems of Medicine that includes Ayurveda, Siddha, Unani, Homeopathy and other Folklore Systems of Medicine practiced in the Indian Subcontinent for the treatment and prevention of various diseases. Current global health perspectives and medical practice in the post COVID era has no other way but to seek to merge alternative systems of medicine with evidence-based therapeutic aspects for a better understanding of the metabolic process and its effects in the human body. The studies based on animal model established that neem and its chief constituents play pivotal role in anticancer management through the modulation of various mol. pathways including p53, pTEN, NF-κB, PI3K/Akt, Bcl-2, and VEGF. Besides, NEEM plays a vital role in the management of diabetics and its associated long term complication through ROS scavenging and ameliorative potentials to restore oxidative injury/ inhibit enzymes linked to. Overall NEEM is considered as GRAS medicinal plant that modulates metabolic inflammations without side effects. Though it has been confirmed that neem and its constituents play role in the scavenging of free radical and prevention of disease pathogenesis, a clear scientific basis of its pharmacoinformatics is still lacking. Gas Chromatog.-Mass Spectroscopy (GC-MS) anal. of the fractions revealed the presence of 62 metabolites. This study involved multiple reactions and reactants, such as Isopropylisothiocyanate (cas: 2253-73-8Quality Control of Isopropylisothiocyanate).

Isopropylisothiocyanate (cas: 2253-73-8) belongs to esters. Esters are also usually derived from carboxylic acids. It may also be obtained by reaction of acid anhydride or acid halides with alcohols or by the reaction of salts of carboxylic acids with alkyl halides. Cyclic esters are called lactones, regardless of whether they are derived from an organic or inorganic acid. One example of an organic lactone is γ-valerolactone.Quality Control of Isopropylisothiocyanate

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

GCMS profile of bioactive secondary metabolites with therapeutic potential in the ethanolic leaf extracts of Azadirachta indica: a sacred traditional medicinal plant of INDIA was written by Loganathan, T.;Barathinivas, A.;Soorya, C.;Balamurugan, S.;Nagajothi, T. G.;Ramya, S.;Jayakumararaj, R.. And the article was included in Journal of Drug Delivery and Therapeutics in 2021.Quality Control of Isopropylisothiocyanate The following contents are mentioned in the article:

Neem (Azadirachta indica) a member of Meliaceae plays an immense role in human health and disease which is attributed to its composition of Bioactive Secondary Metabolites (BASM). It has been widely used in Indian Traditional Systems of Medicine that includes Ayurveda, Siddha, Unani, Homeopathy and other Folklore Systems of Medicine practiced in the Indian Subcontinent for the treatment and prevention of various diseases. Current global health perspectives and medical practice in the post COVID era has no other way but to seek to merge alternative systems of medicine with evidence-based therapeutic aspects for a better understanding of the metabolic process and its effects in the human body. The studies based on animal model established that neem and its chief constituents play pivotal role in anticancer management through the modulation of various mol. pathways including p53, pTEN, NF-κB, PI3K/Akt, Bcl-2, and VEGF. Besides, NEEM plays a vital role in the management of diabetics and its associated long term complication through ROS scavenging and ameliorative potentials to restore oxidative injury/ inhibit enzymes linked to. Overall NEEM is considered as GRAS medicinal plant that modulates metabolic inflammations without side effects. Though it has been confirmed that neem and its constituents play role in the scavenging of free radical and prevention of disease pathogenesis, a clear scientific basis of its pharmacoinformatics is still lacking. Gas Chromatog.-Mass Spectroscopy (GC-MS) anal. of the fractions revealed the presence of 62 metabolites. This study involved multiple reactions and reactants, such as Isopropylisothiocyanate (cas: 2253-73-8Quality Control of Isopropylisothiocyanate).

Isopropylisothiocyanate (cas: 2253-73-8) belongs to esters. Esters perform as high-grade solvents for a broad array of plastics, plasticizers, resins, and lacquers, and are one of the largest classes of synthetic lubricants on the commercial market. Polyesters are important plastics, with monomers linked by ester moieties. Cyclic esters are called lactones, regardless of whether they are derived from an organic or inorganic acid. One example of an organic lactone is γ-valerolactone.Quality Control of Isopropylisothiocyanate

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

Development of the Volatile Fingerprint of Qu Aurantii Fructus by HS-GC-IMS was written by Fang, Cuifen;He, Jia;Xiao, Qi;Chen, Bilian;Zhang, Wenting. And the article was included in Molecules in 2022.SDS of cas: 2198-61-0 The following contents are mentioned in the article:

Volatile components are important active ingredients of Rutaceae. In this study, HS-GC-IMS (headspace-gas chromatog.-ion mobility spectrometry) was used to study the volatile compounds of Qu Aurantii Fructus, and a total of 174 peaks were detected, 102 volatile organic compounds (131 peaks) were identified. To compare the volatile compounds of Qu Aurantii Fructus with its similar medical herb, Aurantii Fructus, and their common adulterants, principal component anal. (PCA) and cluster anal. (CA) were performed based on the signal intensity of all the detected peaks. The results showed that Qu Aurantii Fructus and Aurantii Fructus (Citrus aurantium L.) were clustered into one group, while their common adulterants could be well distinguished in a relatively independent space. In order to distinguish Qu Aurantii Fructus from Aurantii Fructus, the peaks other than the average intensity ±2 standard deviation (95% confidence interval) were taken as the characteristic components by using the Gallery Plot plug-in software. Addnl., the fingerprint method was established based on the characteristic compounds, which can be used to distinguish among Qu Aurantii Fructus, Aurantii Fructus and their common adulterants quickly and effectively. We found that the characteristic components with higher content of Qu Aurantii Fructus were nerol, decanal, coumarin and linalool. This study provides a novel method for rapid and effective identification of Qu Aurantii Fructus and a new dimension to recognize the relationship between Qu Aurantii Fructus and Aurantii Fructus. This study involved multiple reactions and reactants, such as Isopentyl hexanoate (cas: 2198-61-0SDS of cas: 2198-61-0).

Isopentyl hexanoate (cas: 2198-61-0) belongs to esters. Esters are widespread in nature and are widely used in industry. In nature, fats are in general triesters derived from glycerol and fatty acids. Esters are responsible for the aroma of many fruits. Cyclic esters are called lactones, regardless of whether they are derived from an organic or inorganic acid. One example of an organic lactone is γ-valerolactone.SDS of cas: 2198-61-0

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

Untargeted fingerprinting of cider volatiles from different geographical regions by HS-SPME/GC-MS was written by Perestrelo, Rosa;Silva, Catarina L.;Silva, Pedro;Medina, Sonia;Pereira, Regina;Camara, Jose S.. And the article was included in Microchemical Journal in 2019.Product Details of 763-69-9 The following contents are mentioned in the article:

The volat. fingerprint of ciders produced in different geog. regions from Madeira Island was established using headspace solid phase microextraction combined with gas chromatog. mass spectrometry (HS-SPME/GC-MS) in order to explore the effects of geog. region on the volatile pattern ciders in addition to identify potential mol. geog. markers. A total of 107 volatile organic compounds (VOCs) belonging to different chem. families were identified from which 50 VOCs are common to all ciders analyzed. Significant differences in the relative content of VOCs from ciders of different geog. regions were observed The potential of the identified VOCs for ciders discrimination according to region was assessed through chemometric tools, such as principal components anal. (PCA) and partial least squares-discriminant anal. (PLS-DA). The PCA showed significant differences among ciders from different island geog. regions. Fifteen VOCs responsible for ciders discrimination were identified by PLS-DA. Fifteen VOCs, namely five terpenoids, four alcs., three acids and three esters, present variable importance in projection (VIP) values higher than one. Our findings provide relevant information related to volatile signature of ciders produced in Madeira Island, which may be a useful tool to cider-making process contributing to improve the quality of the final product. In addition, the geog. discrimination recognizes the unique and distinctive characteristics that will allow in the future to protect the quality and typicity of products originating in certain geog. regions. This study involved multiple reactions and reactants, such as Ethyl 3-ethoxypropanoate (cas: 763-69-9Product Details of 763-69-9).

Ethyl 3-ethoxypropanoate (cas: 763-69-9) belongs to esters. Esters perform as high-grade solvents for a broad array of plastics, plasticizers, resins, and lacquers, and are one of the largest classes of synthetic lubricants on the commercial market. Polyesters are important plastics, with monomers linked by ester moieties. Many esters have the potential for conformational isomerism, but they tend to adopt an s-cis (or Z) conformation rather than the s-trans (or E) alternative, due to a combination of hyperconjugation and dipole minimization effects. The preference for the Z conformation is influenced by the nature of the substituents and solvent, if present. Lactones with small rings are restricted to the s-trans (i.e. E) conformation due to their cyclic structure.Product Details of 763-69-9

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

Transparent PC/PMMA Blends with Enhanced Mechanical Properties via Reactive Compounding of Functionalized Polymers was written by Bubmann, Tobias;Seidel, Andreas;Ruckdaeschel, Holger;Altstaedt, Volker. And the article was included in Polymers (Basel, Switzerland) in 2022.Name: Diphenyl carbonate The following contents are mentioned in the article:

Reactive compounding of terminally phenolic OH-functionalized polycarbonate (PC) with epoxy-functionalized polymethylmethacrylate (PMMA) prepared by copolymerization with glycidyl methacrylate was investigated. It was spectroscopically demonstrated that a PC/PMMA copolymer was formed during the melt reaction of the functional groups. Zirconium acetylacetonate could catalytically accelerate this reaction. Correlations of the phenomenol. (optical and mech.) properties with the mol. level and mesoscopic (morphol.) structure were discussed. By the investigated reactive compounding process, transparent PC/PMMA blends with two-phase morphologies were obtained in a continuous twin-screw extruder, which, for the first time, combined the high transmission of visible light with excellent mech. performance (e.g., synergistically improved tensile and flexural strength and high scratch resistance). The transparency strongly depended on (a) the degree of functionalization in both PC and PMMA, (b) the presence of the catalyst, and (c) the residence time of the compounding process. The in-situ-formed PC/PMMA copolymer influenced the observed macroscopic properties by (a) a decrease in the interphase tension, leading to improved and stabilized phase dispersion, (b) the formation of a continuous gradient of the polymer composition and thus of the optical refractive indexes in a diffuse mesoscopic interphase layer separating the PC and PMMA phases, and (c) an increase in the phase adhesion between PC and PMMA due to mech. polymer chain entanglement in this interphase. This study involved multiple reactions and reactants, such as Diphenyl carbonate (cas: 102-09-0Name: Diphenyl carbonate).

Diphenyl carbonate (cas: 102-09-0) belongs to esters. Volatile esters with characteristic odours are used in synthetic flavours, perfumes, and cosmetics. Certain volatile esters are used as solvents for lacquers, paints, and varnishes. Esters contain a carbonyl center, which gives rise to 120° C–C–O and O–C–O angles. Unlike amides, esters are structurally flexible functional groups because rotation about the C–O–C bonds has a low barrier. Their flexibility and low polarity is manifested in their physical properties; they tend to be less rigid (lower melting point) and more volatile (lower boiling point) than the corresponding amides. Name: Diphenyl carbonate

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