Category: 6192-52-5

Modeling chemical reactions helps engineers virtually understand the chemistry, optimal size and design of the system, and how it interacts with other physics that may come into play. In a pantent, An efficient ultrasonic-assisted synthesis of ethyl-5-(aryl)-2-(2-alkokxy-2-oxoethylidene)-7-methyl-3-oxo-3, 5-dihydro-2H-thiazolo [3, 2-a] pyrimidine-6-carboxylate derivatives. .

An efficient ultrasonic-assisted synthesis of ethyl-5-(aryl)-2-(2-alkokxy-2-oxoethylidene)-7-methyl-3-oxo-3, 5-dihydro-2H-thiazolo [3, 2-a] pyrimidine-6-carboxylate derivatives

Dihydropyrimidinone derivatives were prepared by tri-component reaction of ethyl aceto acetate, aldehydes and thiourea in the presence of modified montmorillonite nanostructure as a catalyst and used as key intermediates for the synthesis of ethyl-5-(aryl)-2-(2-alkokxy-2-oxoethylidene)-7-methyl-3-oxo-3,5-dihydro-2H-thiazolo[3,2-a]pyri midine-6-carboxylate derivatives with use of diethyl and dimethyl acetylene dicarboxylate by two methods: (a) in methanol as a solvent under ultrasonic irradiation at ambient temperature (b) in methanol as a solvent at ambient temperature (conventional magnetic stirring). Ultrasound-assisted synthesis provides excellent yields in short reaction times (15-25 min) at room temperature. (C) 2015 The Authors. Published by Elsevier B.V. on behalf of King Saud University.

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Reference:
Thiazine – an overview | ScienceDirect Topics,
,Thiazine | C4H5NS – PubChem

 

In chemical reaction engineering, simulations are useful for investigating and optimizing a particular reaction process or system. In a pantent,In Vitro Antiproliferative Evaluation of Synthetic Meroterpenes Inspired by Marine Natural Products, once mentioned the new application about 6192-52-5, Application of 6192-52-5.

In Vitro Antiproliferative Evaluation of Synthetic Meroterpenes Inspired by Marine Natural Products

Several marine natural linear prenylquinones/hydroquinones have been identified as anticancer and antimutagenic agents. Structure-activity relationship studies on natural compounds and their synthetic analogs demonstrated that these effects depend on the length of the prenyl side chain and on the type and position of the substituent groups in the quinone moiety. Aiming to broaden the knowledge of the underlying mechanism of the antiproliferative effect of these prenylated compounds, herein we report the synthesis of two quinones 4 and 5 and of their corresponding dioxothiazine fused quinones 6 and 7 inspired to the marine natural product aplidinone A (1), a geranylquinone featuring the 1,1-dioxo-1,4-thiazine ring isolated from the ascidian Aplidium conicum. The potential effects on viability and proliferation in three different human cancer cell lines, breast adenocarcinoma (MCF-7), pancreas adenocarcinoma (Bx-PC3) and bone osteosarcoma (MG-63), were investigated. The methoxylated geranylquinone 5 exerted the highest antiproliferative effect exhibiting a comparable toxicity in all three cell lines analyzed. Interestingly, a deeper investigation has highlighted a cytostatic effect of quinone 5 referable to a G0/G1 cell-cycle arrest in BxPC-3 cells after 24 h treatment.

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Reference:
Thiazine – an overview | ScienceDirect Topics,
,Thiazine | C4H5NS – PubChem

 

Chemistry graduates have much scope to use their knowledge in a range of research sectors, including roles within chemical engineering, chemical and related industries, healthcare and more. In a pantent, Synthesis, biological activity, distribution and membrane permeability of novel spiro-thiazines as potent neuroprotectors. Formula: https://www.ambeed.com/products/6192-52-5.html.

Synthesis, biological activity, distribution and membrane permeability of novel spiro-thiazines as potent neuroprotectors

New spiro-derivatives of 1,3-thiazine-potential neuroprotectors have been synthesized. It has been determined that the obtained compounds are biologically active and capable of blocking the glutamate-induced calcium ion uptake into synaptosomes of rat brain cortex. The inhibitory activity of the test substances was shown to depend on the chemical nature and structure of the substituents bound with an exocyclic nitrogen atom. Non-polar alkyl and polar radicals with halogen, oxygen and nitrogen atoms were used as substituents. It is typical of the active spiro-thiazines to have alkyl substituents in ortho-and para-position of the benzene ring. Among the investigated spiro-thiazines it is the derivatives with ethyl- and isopropyl-groups in the aril part of the molecules that are the lead-compounds with a high inhibitory ability. We measured the distribution coefficients of the substances in octanol/buffer and hexane/buffer systems and made conclusions about the ability of the investigated drug-like compounds to penetrate the biological membranes. By using the parabolic model we derived a quadratic equation that allowed us to evaluate quantitatively the inhibitory activity of spiro-thiazines with hydrophobic substituents based on lipophilicity data. We also studied the permeability through the phospholipidic membrane and introduced a correlation equation describing the dependence of the investigated spiro-thiazines activity on the descriptors characterizing the donor acceptor properties. (C) 2014 Elsevier Masson SAS. All rights reserved.

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Reference:
Thiazine – an overview | ScienceDirect Topics,
,Thiazine | C4H5NS – PubChem

 

Healthcare careers for chemists are once again largely based in laboratories, although increasingly there is opportunity to work at the point of care, helping with patient investigation. , Recommanded Product: 4-Methylbenzenesulfonic acid hydrate, 6192-52-5, Name is 4-Methylbenzenesulfonic acid hydrate, molecular formula is C7H10O4S, belongs to thiazines compound. In a document, author is Perlovich, G. L., introduce the new discover.

Poorly soluble drugs: disbalance of thermodynamic characteristics of crystal lattice and solvation

The dissolution processes in aqueous media of poorly soluble drugs belonging to the classes of spiro derivatives, benzoic acid and its derivatives, sulfonamides, fenamates, and thiadiazoles were analyzed based on the data recently published by the author. The main criterion for the solubility analysis was the comparison of the thermodynamic characteristics of sublimation processes (state of the molecules in solids) and solvation (state of the molecules in solutions) under structural modification of the reference molecule. The characteristics of the processes under investigation were compared by the superposed diagram approach which allows complete information to be obtained about the thermodynamic state of the molecules in crystal and solution. A variety of thermodynamic paths of the molecules undergoing structural modification (design) was shown. The extreme solubility values were obtained for the considered classes of compounds which can be derived by structural modification of the substances. A classification of the drugs was suggested based on the analysis of the determinative steps of the dissolution processes: crystal or solvation controlled. Based on the investigation of 59 drugs belonging to five different classes of compounds, it was estimated that for 50.7% of the compounds the solubility processes were crystal controlled, whereas for the rest 49.3% – solvation controlled. Among all the considered compounds, a structural modification of the reference one led to a solubility enhancement only in 22.1% of the substances. And in 85% of the compounds, the dissolution processes were solvation controlled and in the remaining 15% – crystal controlled.

Future efforts will undeniably focus on the diversification of the new catalytic transformations. These may comprise an expansion of the substrate scope from aromatic and heteroaromatic compounds to other hydrocarbons. Keep reading other articles of 6192-52-5. Recommanded Product: 4-Methylbenzenesulfonic acid hydrate.

Reference:
Thiazine – an overview | ScienceDirect Topics,
,Thiazine | C4H5NS – PubChem

 

Research speed reading in 2021. Healthcare careers for chemists are once again largely based in laboratories, although increasingly there is opportunity to work at the point of care, helping with patient investigation. , Name: 4-Methylbenzenesulfonic acid hydrate, 6192-52-5, Name is 4-Methylbenzenesulfonic acid hydrate, molecular formula is C7H10O4S, belongs to thiazines compound. In a document, author is Koprdova, Anna, introduce the new discover.

Chemometric Characterization of Synthetic Dye Sorption onto Slovakian River Sediments: A Laboratory Batch Experiment

The aim of the work was to characterize the sorption of cationic dyes thioflavine T (ThT) and methylene blue (MB) onto selected Slovakian river sediments using chemometric approaches including principal component analysis (PCA) and cluster analysis (CA). Also, the potential of mentioned multivariate analyses for comparison of studied objects (river sediments or river and model waters) as well as in finding relationships between the variables describing the physico-chemical characteristics of studied matrices or waters and sorption/desorption characteristics of matrices for dyes binding under laboratory conditions was evaluated. Parameters describing the physico-chemical characteristics of sediments include: pH, pH(zpc), or cation-exchange capacity; and in the case of waters: pH, conductivity, water hardness, content of dissolved solids or presence of organic compounds. From the comparison of dye sorption onto sediments, it was found that sorption of thiazine dye MB was minimally 1.5-times higher than sorption of benzothiazole dye ThT. Sorption capacities Q(s) reached the maximum values in the case of sediments originated from Dudvah River (MB-Q(s) = 8.70 +/- 0.42 mg g(-1); ThT-Q(s) = 5.03 +/- 0.28 mg g(-1); +/- SD). Obtained results showed that applied methods of multivariate analyses represent a suitable tool for evaluation of sorption/desorption processes of organic xenobiotics binding in sediments.

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Reference:
Thiazine – an overview | ScienceDirect Topics,
,Thiazine | C4H5NS – PubChem

 

Chemistry involves the study of all things chemical – chemical processes, chemical compositions and chemical manipulation – in order to better understand the way in which materials are structured, how they change and how they react in certain situations. , Recommanded Product: 6192-52-5, 6192-52-5, Name is 4-Methylbenzenesulfonic acid hydrate, molecular formula is C7H10O4S, belongs to thiazines compound. In a document, author is Ghanbari, Mohammad Mehdi, introduce the new discover.

Reaction of alkyl isocyanides and dialkyl acetylenedicarboxylates in the presence of 5,5-diaryl thiohydantoins. Synthesis of functionalized imidazo[2,1-b][1,3]thiazines

The reaction of stoichiometric amounts of dialkyl acetylenedicarboxylates with alkyl isocyanides in the presence of 5,5-diaryl thiohydantoins afforded imidazo[2,1-b][1,3]thiazines in good overall yields.

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Reference:
Thiazine – an overview | ScienceDirect Topics,
,Thiazine | C4H5NS – PubChem

 

While the job of a research scientist varies, most chemistry careers in research are based in laboratories, where research is conducted by teams following scientific methods and standards. 6192-52-5, Name is 4-Methylbenzenesulfonic acid hydrate, belongs to thiazines compound, is a common compound. In a pantent, author is Shanmugam, Ranganathan, once mentioned the new application about 6192-52-5, Application In Synthesis of 4-Methylbenzenesulfonic acid hydrate.

An unusual electrochemical oxidation of phenothiazine dye to phenothiazine-bi-1,4-quinone derivative (a donor-acceptor type molecular hybrid) on MWCNT surface and its cysteine electrocatalytic oxidation function

Phenothiazine (PTZ), a thiazine class heterocyclic compound, is a well-known electron donating system and has been widely used as a starting compound to prepare various phenothiazine dyes and pharmaceutically important compounds. Quinones and its derivatives are constituents of biologically active molecules serve as excellent electron-acceptor systems. Oxidation of PTZ by chemical and electrochemical methods often resulted into monohydroxylation of benzene ring moiety, S-oxidized and polymerized compounds as end products. Electrochemical oxidation of PTZ on a multiwalled carbon nanotube (MWCNT) modified glassy carbon electrode in pH 7 phosphate buffers solution (PBS) has been investigated in this work. A highly redox active surface confined PTZ-bi-1,4-quinone derivative (PTZ-biQ) on MWCNT modified glassy carbon electrode, designated as GCE/MWCNT@PTZ-biQ, as a product was unusually observed. The GCE/MWCNT@PTZ-biQ showed well-defined redox peaks at E-1/2 = -0.07 and +0.29 V vs Ag/AgCl corresponding to surface confined electron-transfer behavior of the bi-quinone (acceptor) and PTZ-cationic radical species (donor) respectively. No such electrochemical characteristics were noticed when unmodified GCE was subjected to the electrochemical oxidation of PTZ. Existence of PTZ-biQ was confirmed by XRD, Raman spectroscopy, FT-IR and GC-MS (methanolic extract of the active layer) analyses. Position of biQ in PTZ-biQ as 1,4-quinone isomer was confirmed by observation of absence of copper-complexation with 1,4-quinone and H2O2 electrochemical reduction reactions at -0.1 V vs Ag/AgCl unlike to the specific copper-complexation and H2O2 reduction with 1,2-quinone isomer in pH 7. Cysteine (CySH) oxidation was studied as a model system to understand the electron-transfer function of the MWCNT@PTZ-biQ. A highly selective electrocatalytic oxidation and sensing by amperometric i-t and flow injection analysis of CySH at low oxidation potential, 0.3 V vs Ag/AgCl in pH 7 PBS with detection limit values (signal-to-noise ratio = 3) of 11.10 mM and 110 nM respectively, without any interference from other biochemicals like uric acid, dopamine, nitrite, citric acid and H2O2, unlike the conventional chemically modified electrodes with serious interference’s, have been demonstrated. (C) 2015 Elsevier Ltd. All rights reserved.

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Reference:
Thiazine – an overview | ScienceDirect Topics,
,Thiazine | C4H5NS – PubChem

 

Having gained chemical understanding at molecular level, chemistry graduates may choose to apply this knowledge in almost unlimited ways, as it can be used to analyze all matter and therefore our entire environment., Electric Literature of 6192-52-5, 6192-52-5, Name is 4-Methylbenzenesulfonic acid hydrate, molecular formula is C7H10O4S, belongs to thiazines compound. In a document, author is Czerwonka, Arkadiusz, introduce the new discover.

Evaluation of the effect of 2-(2,4-dihydroxyphenyl)-4H-benzofuro[3,2-d][1,3]thiazin-4-one on colon cells and its anticancer potential

In this paper, we present the biological effect of the newly synthesized 2-(2,4-dihydroxyphenyl)-4H-benzofuro[3,2-d][1,3]thiazin-4-one (DPBT) on human colon adenocarcinoma cell lines (HT-29 and LS180). Additionally, DPBT cytotoxicity was examined in human colon epithelial cells (CCD 841 CoTr) and human skin fibroblasts (HSF). The studies revealed a significant decrease in the proliferation of cancer cells after exposure to DPBT at concentrations in the range of 10-100 mu M. Additionally, DPBT was not toxic to normal CCD 841 CoTr and HSF cells at concentrations that induced inhibition of cancer cell proliferation. The nature of the anti-proliferative action of DPBT in the cell cycle progression in colon cancer cells and the expression of proteins involved in this process were examined by flow cytometry and western blotting, respectively. The investigations demonstrated higher sensitivity of LS180 than HT-29 to the DPBT treatment. The anti-proliferative action of DPBT in LS180 was attributed to cell cycle arrest in the G(1) phase via up-regulation of p27(KIP1) and down-regulation of cyclin D1 and CDK4 proteins.

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Reference:
Thiazine – an overview | ScienceDirect Topics,
,Thiazine | C4H5NS – PubChem

 

Healthcare careers for chemists are once again largely based in laboratories, although increasingly there is opportunity to work at the point of care, helping with patient investigation. 6192-52-5, Name is 4-Methylbenzenesulfonic acid hydrate, belongs to thiazines compound, is a common compound. In a pantent, author is Kim, Seungdu, once mentioned the new application about 6192-52-5, Product Details of 6192-52-5.

Zero-Power, Low-Cost Ultraviolet-C Colorimetric Sensor Using a Gallium Oxide and Reduced Graphene Oxide Hybrid via Photoelectrochemical Reactions

A zero-power, low-cost ultraviolet (UV)-C colorimetric sensor is demonstrated using a gallium oxide and reduced graphene oxide (rGO) hybrid via photoelectrochemical reactions. A wide bandgap semiconductor (WBS) such as gallium oxide with an energy bandgap of 4.9 eV generates electron-hole pairs (EHPs) when exposed under a mercury lamp emitting 254 nm. While the conventional UVC sensors employing WBS convert the generated EHPs into an electrical signal via a solid-state junction device (SSD), our newly proposed UVC sensory system works by converting EHPs into an electrochemical reaction. The electrochemical reaction causes the degradation of a cationic thiazine redox dye, methylene blue (MB) and thereby spontaneously changes its color. As more rGO was hybridized with the gallium oxide, MB degradation was effectively expedited. Thus, the level of MB degradation under UVC can be evaluated as a UVC indicator. Unlike conventional SSD-based UVC sensors, our responsive colorimetric sensor can be applied where needed inexpensively and zero power.

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Reference:
Thiazine – an overview | ScienceDirect Topics,
,Thiazine | C4H5NS – PubChem

 

Chemical research careers are more diverse than they might first appear, as there are many different reasons to conduct research and many possible environments. 6192-52-5, Name is 4-Methylbenzenesulfonic acid hydrate, belongs to thiazines compound, is a common compound. In a pantent, author is Li Ming, once mentioned the new application about 6192-52-5, COA of Formula: https://www.ambeed.com/products/6192-52-5.html.

Cu-Catalyzed Synthesis of Novel Benzo[e]pyrazolo[1,5-c][1,3]thiazine Derivatives

Based on substrate-design concept, a high chemoselectivitive synthetic strategy of novel benzo[e]pyrazolo[1,5-c][1,3]thiazine compounds through the Cu-catalyzed reactions of 5-(2-bromoaryl)-1H-pyrazol-3-amines and isothiocyanates was developed by using 1-(2-fromoaryl)-3-ethoxy-3-amino-prop-2-en-1-ones as raw material, which has advantages of simple operation, mild reaction conditions and high yields.

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Reference:
Thiazine – an overview | ScienceDirect Topics,
,Thiazine | C4H5NS – PubChem