Tag: M.W:100-200

Reference of 98-03-3, Career opportunities within science and technology are seeing unprecedented growth across the world, and those who study chemistry or another natural science at university now have increasingly better career prospects.98-03-3, Name is Thiophene-2-aldehyde, SMILES is C1=C(SC=C1)C=O, belongs to thiomorpholine compound. In a article, author is Fanigliulo, Ameriga, introduce new discover of the category.

A stability-indicating method for the determination of S-carboxymethyl-L-cysteine and related degradation impurities in Exputex (R) 250 mg/5 mL syrup was developed in anion-exchange liquid chromatography mode. A forced degradation study supported the method development to ensure stability indicating conditions. Aqueous solutions of the active pharmaceutical ingredient and syrup samples at different pH-values were stress-tested in different thermal, light exposure and headspace conditions. One degradation product was detected in thermal stress studies at 60 degrees C and 80 degrees C in the pH range 5.0-7.0 and was identified by mass spectrometry as 5-oxo-thiomorpholine-3-carboxylic acid (lactam of carbocysteine). A second degradation product was only generated in moderately strong oxidizing conditions (0.5% H2O2 aqueous solution) and was identified as S-carboxymethyl-L-cysteine-(R/S)-sulphoxide (carbocysteine sulphoxide). The method was developed on a Zorbax SAX column, in isocratic mode. The mobile phase consisted of 200 mM phosphate solution at pH 4.0 and acetonitrile (50:50 v/v) and UV detection was performed at a wavelength of 205 nm. The method was linear for carbocysteine (R > 0.9982) over a concentration range of 2.5-50 mu g/mL and 0.4-0.6 mg/mL. Linearity for the impurities was shown from the LOQ to 50 mu g/mL. Specificity was verified and accuracy demonstrated for the active ingredient and its degradation products in syrup samples at 3 levels around their respective specification limits. Repeatability, intermediate precision and inter-laboratory reproducibility were assessed on three commercial batches, analyzed in triplicate by two operators at both the transferring and the receiving site and demonstrated a successful method transfer to the manufacturing quality control laboratory. (C) 2015 Elsevier B.V. All rights reserved.

The result showed that such a combination of chemo- and biocatalysis improved the catalytic yield more than two times compared with that of sole metal catalysis.you can check my other blog about 98-03-3, you can contact me at any time and look forward to more communication. Electric Literature of 98-03-3.

Reference:
Thiomorpholine – Wikipedia,
,Thiomorpholine | C4H9NS – PubChem

Chemical engineers work across a number of sectors, but chemistry and chemical engineering roles are found throughout, creation and manufacturing process of chemical products and materials. In an article, author is Yang, Zhantao, once mentioned the application of 1075-49-6, Name is 4-Vinylbenzoic acid, molecular formula is C9H8O2, molecular weight is 148.16, MDL number is MFCD00002569, category is thiomorpholine. Now introduce a scientific discovery about this category, Reference of 1075-49-6.

A direct and catalyst-free annulative thioboration of unfunctionalized olefins has been developed. In the presence of BCl3 as the sole boron source, the boryl group and thiol group are added to the C-C double bonds simultaneously. The boronic acids obtained can be protected to form synthetically ubiquitous pinacol boronate esters.

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Thiomorpholine – Wikipedia,
,Thiomorpholine | C4H9NS – PubChem

New research progress on 120-07-0 in 2021. Chemical research careers are more diverse than they might first appear, as there are many different reasons to conduct research and many possible environments. 120-07-0, Name is 2,2-(Phenylimino)diethanol, molecular formurla is C10H15NO2. In a document, author is Xu Jian, introducing its new discovery. Related Products of 120-07-0.

A series of artemisone derivatives was prepared from dihydroartemisinin through a seven-step conversion, which included the amination of dihydroartemisinin with thiomorpholine, the oxidation of thiomorpholine (2) with hydrogen peroxide, the alkylation of sulfone (3) with the silyl protected 4-iodobutan-1-ol, the desilylation of artemisone derivative(4), the conversion of alcohol(5) to iodide(6), the amination of iodide (6) with piperazine, and the sulfonylation of compound 7 with a wide arrange of sulfonyl chlorides to the desired artemisone derivatives (8). All the new compounds were identified by NMR spectra, IR and HRMS technology. The anti-tumor activities of artemisone derivatives against human hepatoma SMMC-7721 cell lines were evaluated by 3-(4, 5 -dimethylthiazol-2-yl)-2, 5 -diphenyltetrazolium bromide (MTT) method. It was found that these new artemisone-piperazine-sulfonamide derivatives could inhibit the proliferation of the liver cancer cell by inducing apoptosis, and the lowest IC50 value of the treatment for 72 h was 0. 09 mu mol/mL.

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Reference:
Thiomorpholine – Wikipedia,
,Thiomorpholine | C4H9NS – PubChem

Researchers are common within chemical engineering and are often tasked with creating and developing new chemical techniques, frequently combining other advanced and emerging scientific areas. In an article, author is Starosta, Radoslaw, once mentioned the application of 3886-70-2, Name is (R)-1-(Naphthalen-1-yl)ethanamine, molecular formula is C12H13N, molecular weight is 171.2383, MDL number is MFCD00064114, category is thiomorpholine. Now introduce a scientific discovery about this category, Reference of 3886-70-2.

Herein, a series of CuI or CuNCS complexes with neocuproine (2,9-dimethyl-1,10-phenanthroline: dmp) and two tris(aminomethyl)phosphines derived from morpholine (P(CH2N(CH2CH2)(2)O)(3)) or thiomorpholine (P(CH2N(CH2CH2)(2)S)(3)) were tested as cytotoxic agents in vitro towards mouse colon carcinoma (CT26) and human lung adenocarcinoma (A549). The studies showed that the complexes exhibit potential antitumor properties, displayed by IC50 values below 10m towards the tested cell lines, in the case of 4-h incubation time with the examined compounds. Moreover, a high antimicrobial activity of all the complexes was observed against Staphylococcus aureus and Candida albicans with minimal inhibitory concentrations equal to 1-2g/mL. To gain insight into the molecular mechanism of biological activity of the complexes, we investigated also their interactions with plasmid DNA (pUC18) and the human and bovine serum albumins. Gel electrophoresis experiments demonstrated that all the compounds were comparably efficient in DNA degradation process; however, luminescence quenching showed surprising dependence on the interactions strength of the used compounds with the albumins. Apart from exceptionally effective [CuI(dmp)P(CH2N(CH2CH2)(2)O)(3)], the complexes with P(CH2N(CH2CH2)(2)O)(3) quenched more strongly luminescence of bovine serum albumin, while the complexes with P(CH2N(CH2CH2)(2)S)(3) were more active in the quenching of human serum albumin luminescence.

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Reference:
Thiomorpholine – Wikipedia,
,Thiomorpholine | C4H9NS – PubChem

New research progress on 2996-92-1 in 2021. 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. 2996-92-1, Name is Trimethoxy(phenyl)silane, molecular formurla is C9H14O3Si. In a document, author is Carriedo, Gabino A., introducing its new discovery. Application of 2996-92-1.

The reaction of poly(dichlorophosphazene) [NPCl2](n), with 2,2′-dihydroxybiphenyl, 2,2′-(OH)C6H4-C6H4(OH), and then with p-anisidine, p-NH2C6H4OMe, in the presence of K2CO3 led to the formation of the chlorine containing phosphazene copolymer {[Np(O2C12H8)](0.75)[NP(NHC6H4OMe)(2)](0.15)[NP(NHC6H4OMe)Cl](0.05)[NPCl2](0.05)}(n), (1), which could be isolated and fully characterised. When using cyclic secondary amines instead of aromatic primary amines, namely, HNC5H10 (piperidine), HNC4H8O (morpholine), HNC4H8S (thiomorpholine), the reaction gave the functionalized copolymers {[NP(O2C12H8)(10.6)[NP(NC5-H-10)(2)](0.35), (2) IINP(O2Cl2H8)](0.65)[NP(NC4H8O)(2)](0.35)}(n), (3) and {[NP(O2Cl2H8)](0.75)[NP(NC4H8S)(2)](0.25)}(n), (4), respectively. The broad bands in their P-31 NMR spectra and the bimodal aspect of their GPC chromatograms suggested they could be forming aggregates in solution. (c) 2006 Elsevier Ltd. All rights reserved.

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Reference:
Thiomorpholine – Wikipedia,
,Thiomorpholine | C4H9NS – PubChem

Academic researchers, R&D teams, teachers, students, policy makers and the media all rely on us to share knowledge that is reliable, accurate and cutting-edge. In an article, author is Reddy, Putta Ramachandra, once mentioned the application of 100-21-0, Name is Terephthalic acid, molecular formula is C8H6O4, molecular weight is 166.1308, MDL number is MFCD00002558, category is thiomorpholine. Now introduce a scientific discovery about this category, Synthetic Route of 100-21-0.

A new class of N-azole substituted thiomorpholine derivatives were prepared and their antioxidant and cytotoxic activities were studied. The methyl substituted oxazolyl thiomorpholine dioxide 9b exhibited radical scavenging activity greater than the standard ascorbic acid. On the other hand, the thiazolyl thiomorpholine 10c having a chloro substituent on the aromatic ring was identified as a remarkable lead molecule for cytotoxic activity against A549 and HeLa cells, with IC50 values of 10.1 and 30.0 mu M, respectively.

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Thiomorpholine – Wikipedia,
,Thiomorpholine | C4H9NS – 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., Application In Synthesis of Trimethoxy(phenyl)silane, 2996-92-1, Name is Trimethoxy(phenyl)silane, molecular formula is C9H14O3Si, belongs to thiomorpholine compound. In a document, author is Ibis, C, introduce the new discover.

The substituted 1,2-dibromomethanethio nitrodiene 2 was obtained from the addition of bromine to S-substituted nitrodien 1 in carbon tetrachloride. N,S-substituted compounds 4a-h were synthesized from the reactions of compound 2 with several substituted piperazine derivatives 3a-h in dichloromethane. N,S-substituted compounds 6 and 8 were synthesized from the reaction of 2 with morpholine (5) and thiomorpholine (7) in dichloromethane, respectively. Dibutadienyl piperazines 10, 12, and 14 were synthesized from the reactions of 2 with homopiperazine (9), piperazine (11), and 2,5-dimethylpiperazine (13), respectively.

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Reference:
Thiomorpholine – Wikipedia,
,Thiomorpholine | C4H9NS – PubChem

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 an article, author is Peter, A, once mentioned the application of 99-10-5, Name is 3,5-Dihydroxybenzoic acid, molecular formula is C7H6O4, molecular weight is 154.1201, MDL number is MFCD00002512, category is thiomorpholine. Now introduce a scientific discovery about this category, Category: thiomorpholine.

A new chiral derivatizing, agent, (S)-N-(4-nitrophenoxycarbonyl)phenylalanine methoxyethyl ester, (S)-NIFE, was applied for the high-performance liquid chromatographic separation of enantiomers of 19 unnatural secondary amino acids: proline, pipecolic acid analogues, piperazine-2-carboxylic acid, morpholine-3-carboxylic acid, thiomorpholine-3-carboxylic acid and analogues containing the 1,2,3,4-tetrahydroisoquinoline, 1,2,3,4-tetrahydronorharmane, 1,2,3,4-tetrahydro-2-carboline and 2-benzazepine skeletons. Excellent resolutions were achieved for most of the investigated compounds by using a reversed-phase mobile phase system. The conditions of separation were optimized by variation of the mobile phase composition. (C) 2002 Elsevier Science B.V. All rights reserved.

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Reference:
Thiomorpholine – Wikipedia,
,Thiomorpholine | C4H9NS – PubChem

You could be based in a university, combining chemical research with teaching; or in a public-sector research center, helping to ensure national healthcare provision keeps pace with new discoveries. In an article, author is Kralova, Petra, once mentioned the application of 4760-34-3, Name is N1-Methylbenzene-1,2-diamine, molecular formula is C7H10N2, molecular weight is 122.1677, MDL number is MFCD00192314, category is thiomorpholine. Now introduce a scientific discovery about this category, Reference of 4760-34-3.

Herein, we report the stereoselective synthesis of trisubstituted benzoxazino[4,3-b]{1,2,5}thiadiazepinone 6,6-dioxides from polymer-supported Fmoc-Ser(tBu)-OH and Fmoc-Thr(tBu)-OH. After the solid-phase synthesis of N-alkylated-Nsulfonylated intermediates using various 2-nitrobenzenesulfonyl chlorides and bromoketones, the target compounds were obtained via trifluoroacetic acid (TFA)-mediated cleavage from the resin, followed by cyclization of the diazepinone scaffold. Except for the threonine-based intermediates, the inclusion of triethylsilane (TES) in the cleavage cocktail yielded a specific configuration of the newly formed C-3 chiral center. The final cyclization resulted in minor or no inversion of the C-12a stereocenter configuration.

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Reference:
Thiomorpholine – Wikipedia,
,Thiomorpholine | C4H9NS – PubChem

Academic researchers, R&D teams, teachers, students, policy makers and the media all rely on us to share knowledge that is reliable, accurate and cutting-edge. In an article, author is Szawkalo, Joanna, once mentioned the application of 86-55-5, Name is 1-Naphthoic acid, molecular formula is C11H8O2, molecular weight is 172.18, MDL number is MFCD00004007, category is thiomorpholine. Now introduce a scientific discovery about this category, Quality Control of 1-Naphthoic acid.

A series of new N-aryl-substituted thiomorpholine-3,5-diones were synthesized. Crystal structures of seven compounds were established on the basis of X-ray crystallography. Stable at room temperature diastereomers were detected for (2-phenyl)-substituted derivatives using H-1 NMR. The dynamic stereochemistry of compound 36 was studied with variable-temperature H-1 NMR and the mechanism of diastereomers interconversion was proposed on the basis of quantum chemical calculations. (C) 2014 Elsevier B.V. All rights reserved.

The design and synthesis of related molecules that are more effective, more selective, and less toxic than aspirin are important objectives of biomedical research. You can also check out more blogs about 86-55-5. Quality Control of 1-Naphthoic acid.

Reference:
Thiomorpholine – Wikipedia,
,Thiomorpholine | C4H9NS – PubChem