Author: Jessica.F

Palinko, Istvan;Szabo, Pal Tamas;Torok, Bela;Kele, Zoltan;Kapocsi, Iren published 《Fragmentation of cyclobutane derivatives upon electron impact: transformation pathways elucidated by mass spectrometric methods and semiempirical quantum chemical calculations》 in 1998. The article was appeared in 《Rapid Communications in Mass Spectrometry》. They have made some progress in their research.Related Products of 3779-29-1 The article mentions the following:

The fragmentation behavior of cyclobutane derivatives (carboxylic acids, esters, cyclobutanediols, silyl ethers of the hydroxy compounds) was first studied by the GC/MS method under electron-impact (EI) ionization. Then, in order to establish the sequence of transformations, MS/MS, and in situ deuteration as well as accurate mass measurements, were performed. Anal. of these measurements revealed characteristic transformation pathways: (1) the substituents were easily cleaved; (2) in most cases the cyclobutane ring was opened with the rupture of C-C bonds opposite to each other; (3) upon ring opening, the most substituted ring C-C bond was cleaved 1st and preferentially; and (4) primary fragmentation was followed by secondary reactions including further cleavage of the ions as well as rearrangements. Sym. ring scission was observed for cyclobutanediols and their silyl ethers, providing only 1 primary fragment with m/z half that of the mol. weight This type of fragmentation was consistent with semiempirical AM1 calculations And Diethyl cyclobutane-1,1-dicarboxylate (cas: 3779-29-1) was used in the research process.

Diethyl cyclobutane-1,1-dicarboxylate (cas:3779-29-1
) is a solid catalyst that can be used in the synthesis of alkylating agents. It is used in the manufacture of cyclopropyl ketones and has been shown to exhibit anticancer properties.

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Cincotta, Fabrizio;Verzera, Antonella;Prestia, Ottavia;Tripodi, Gianluca;Lechhab, Wafae;Sparacio, Antonio;Condurso, Concetta published 《Influence of leaf removal on grape, wine and aroma compounds of Vitis vinifera L. cv. Merlot under Mediterranean climate》. The research results were published in《European Food Research and Technology》 in 2022.Recommanded Product: 124-06-1 The article conveys some information:

Merlot is one of the most cultivated cultivars in the world since it easily adapts to different climatic conditions. Leaf removal (LR) is commonly used for red berry varieties but in cold wine-growing areas and nothing has been reported on the effects of LR on Merlot cultivated under Mediterranean climate. The aim of the research is to evaluate the influence of this technique on grape and wine quality as well as wine aroma potential of Merlot cultivated in Sicily. Vines were subjected to LR for two consecutive years, and productivity and chem. parameters were monitored in grapes, whereas chem. composition and volatile aroma compounds, analyzed by gas chromatog. mass spectrometry, were monitored in wines. LR pos. influenced the plant yield, increased the sugar content and decreased the acidity in grapes at harvest. The wines of the defoliated treatment showed a higher content of total polyphenols and anthocyanins, higher color intensity, and lower color hue. Merlot wines obtained under Mediterranean climate were characterized by a high amount of esters and varietal aromas and the content of most of volatiles were even increased by the LR with pos. effects on the aroma potential of Merlot wines. The vintage affected almost all the studied parameters with the warmer and dryer vintage enhancing the LR effects on grapes and wines. This is of great interest in the light of the climate changes towards the global warming and the increasing aridity of the Mediterranean area.Ethyl tetradecanoate (cas: 124-06-1) were involved in the experimental procedure.

Ethyl tetradecanoate(cas: 124-06-1) is a natural product found in Psidium guajava, Litchi chinensis, and other organisms.Recommanded Product: 124-06-1Ethyl myristate is a long-chain fatty acid ethyl ester resulting from the formal condensation of the carboxy group of myristic acid with the hydroxy group of ethanol.

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Ye, Feng-mei;Xie, Yang-guo;Zhu, Yan;Ren, Jie;Wang, Xing;Yan, Shi-kai;Jin, Hui-zi published 《Chemical constituents of branches and leaves of Illicium wardii A. C. Smith》 in 2015. The article was appeared in 《Tianran Chanwu Yanjiu Yu Kaifa》. They have made some progress in their research.Related Products of 4707-47-5 The article mentions the following:

The aim is to investigate chem. constituents of the branches and leaves of Illicium wardii A. C. Smith. Chem. constituents were isolated by using column chromatog. from 95% ethanol extracts of the branches and leaves of I. wardii. Their structures were elucidated by NMR, IR and MS techniques. Fifteen compounds were obtained and identified as β-sitosterol(1), hexacosane(2), dunnianol(3), tetratriacontanol(4), isorhamnetin-3-O-β-D-rutinoside(5), acernikol(6), subamone(7), methyl-β-orsellinate(8), hinokinin(9), magnolol(10), protocatechuic acid(11), isodunnianol(12), vitrifol A(13), (+)-dihydrodehydrodiconiferyl alc.(14) and (-)-massoniresinol(15). Compounds 2-15 were obtained from this plant firstly, and compound 7 and 15 were found from illiciaceae family firstly. And Methyl 2,4-dihydroxy-3,6-dimethylbenzoate (cas: 4707-47-5) was used in the research process.

Methyl 2,4-dihydroxy-3,6-dimethylbenzoate(4707-47-5) is used in biological study as role of androgens in inducing distinct response of epithelial-mesenchymal transition factors in human prostate cancer cells.Related Products of 4707-47-5

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Computed Properties of C10H16O4《The preparation of ethyl 1,1-cyclobutanedicarboxylate》 was published in 1953. The authors were Raik, S. E.;Kazanskii, B. A., and the article was included in《Vestnik Moskovskogo Universiteta》. The author mentioned the following in the article:

During the condensation of CHNa(CO₂Et)₂ (I) with Br(CH₂)₃Cl a reversible side reaction between I and Cl(CH₂)₃CNa(CO₂Et)₂ (II) is known to take place. II was prevented from separating out and the yield of di-Et 1,1-cyclobutanedicarboxylate was increased to 60% (from 35 to 40%, cf. C.A. 37, 4705.6) by employing a mixture of C₆H₆ and EtOH as solvent. I is only slightly soluble in cold C₆H₆ but its solubility increases with higher temperature, and particularly in the presence of CH₂(CO₂Et)₂, thus controlling the rate of reaction. Cf. Sidgwick and Brewer, C.A. 20, 740. PrOH and iso-PrOH were unsuccessful in replacing EtOH. To complete the study, the researchers used Diethyl cyclobutane-1,1-dicarboxylate (cas: 3779-29-1) .

Diethyl 1,1-cyclobutanedicarboxylate(cas:3779-29-1 Computed Properties of C10H16O4) reacts with silicon to form diethyl esters and magnesium to form magnesium salts. The reaction time for this compound is short, which may be due to its ability to undergo debromination.

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Abood, Amira;Al-Fahad, Ahmed;Scott, Alan;Hosny, Alaa El-Dein M. S.;Hashem, Amal M.;Fattah, Azza M. A.;Race, Paul R.;Simpson, Thomas J.;Cox, Russell J. published 《Kinetic characterisation of the FAD dependent monooxygenase TropB and investigation of its biotransformation potential》 in 2015. The article was appeared in 《RSC Advances》. They have made some progress in their research.Computed Properties of C10H12O4 The article mentions the following:

Achieving regio-specific hydroxylation of aromatic compounds remains a major challenge in synthetic chem. By contrast, this transformation is readily accomplished in nature through the action of FAD-dependent monooxygenase enzymes. Here, the authors report the kinetic characterization of one such enzyme, TropB, from the stipitatic acid biosynthetic pathway. Analogs of the TropB natural substrate, 3-methyl-orcinaldehyde, were synthesized and used to examine the substrate selectivity of this enzyme. TropB displays broad substrate tolerance, for instance accepting single-ring aromatic substrates containing a range of C-1 substituents with varying electronic and steric properties. These include nitro, nitrosyl, alkyl, and aryl keto groups. Bicyclic substrates, however, were rejected by TropB. Addnl., C-5 substituents on single-ring aromatic substrates were not tolerated whereas the presence of a 6-Me group is important for substrate binding. Docking studies were employed to study and understand the broad substrate selectivity of TropB and identifies the key structural elements of its substrates. The authors′ work showed that TropB is an attractive target for biocatalyst engineering and industrial aromatic hydroxylation. To complete the study, the researchers used Methyl 2,4-dihydroxy-3,6-dimethylbenzoate (cas: 4707-47-5) .

Methyl 2,4-dihydroxy-3,6-dimethylbenzoate(4707-47-5) is used in biological study as role of androgens in inducing distinct response of epithelial-mesenchymal transition factors in human prostate cancer cells.Computed Properties of C10H12O4

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Reference of Methyl oleate《Cassia auriculata Linn. extracts induce apoptosis and cell cycle arrest of A549 lung cancer cell lines: An in vitro approach》 was published in 2022. The authors were Rajagopal, Anitha;Rajakannu, Subashini, and the article was included in《South African Journal of Botany》. The author mentioned the following in the article:

Cassia auriculata is an ethnobotanically important traditional medicinal plant of tropical Asia and recently, phytochems. and their derivatives have gained scientific attention for their use as agents in cancer treatment and prevention. The aerial parts of Cassia auriculata plant were subjected to successive cold maceration to yield four fractions viz., n-hexane, dichloromethane, Et acetate, and ethanol extract The extracts were fractionated by GC-MS (Gas Chromatog.-Mass Spectrometry) and HPLC (High-Performance Liquid Chromatog.) anal. for their phytochem. content. The chromatog. techniques revealed the presence of mainly the flavonoid compounds like flavone, chrysin, and quercetin. The anti-proliferative properties of ethanolic extract of C. auriculata on A549 human lung cancer cells have been reported. The cancer cell survival rate (MTT 3- [4, 5- dimethythiazol-2-yl] 2, 5-diphenyl tetrazolium bromide) was found to be reduced with lung cancer cells (IC₅₀ 26.24 mug/mL) when treated with C. auriculata ethanol extract (CAEE) when compared to the non-cancerous cells L132. The toxicity of the extract on L132 cells was low (IC₅₀ 55.78 mug/mL). The mode of cell death induced by CAEE on A549 cells was examined by various fluorescent staining techniques and characteristic nuclear and morphol. changes for apoptosis were evaluated. The expression of caspase 9 activity was documented, which might have triggered cell death through apoptosis by the activation of caspase 9 in the ethanolic fraction treated A549 cells. Cell cycle anal. of treated A549 cells revealed a promising S phase cell cycle arrest. The flavonoid compounds identified in the present study might be responsible for the remarkable anticancer and other activities of the plant. From these findings, the plant C. auriculata can be further exploited to develop promising candidate mols., particularly for lung cancer chemotherapy. And Methyl oleate (cas: 112-62-9) was used in the research process.

Methyl oleate(cas: 112-62-9) is an intermediate for detergents, emulsifiers, wetting agents, stabilizers, textile treatments, plasticizers for duplicating inks, rubbers, waxes etc.Reference of Methyl oleate It is also used in biochemical research as a chromatographic reference standard.

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Application of 93-92-5《The characterization of flavored hookahs aroma profile and in response to heating as analyzed via headspace solid-phase microextraction (SPME) and chemometrics》 was published in 2018. The authors were Farag, Mohamed A.;Elmassry, Moamen M.;El-Ahmady, Sherweit H., and the article was included in《Scientific Reports》. The author mentioned the following in the article:

Flavors profiling in flavored hookah tobacco is an issue of increasing scrutiny for the health sector owing to its adverse effects on humans, especially being heated to produce smoke. This study aims at tackling the components involved in the flavored hookah tobacco from a chem. and biol. point of view. Detecting individual flavor compounds, within a complex hookah tobacco matrix was accomplished using headspace solid phase microextraction (SPME). A total of 114 volatiles were identified in 13 flavored hookah tobacco products, with esters amounting for the major component up to 40%. Whereas oxygenated monoterpenes presented another major volatile class, contributing up to 23%, including (E)-anethole. Superheating flavored hookah tobacco at 190°C resulted in the release of a mixture of phenol derivatives and polycyclic aromatic compounds that are indicative of coal tar, a major component produced during hookah tobacco usage with potential health hazards. This study provides the first comprehensive volatile profile of hookah tobacco products from different origins identifying chem. components involved in flavors. It is expected to serve as informative grounds for the better understanding of hookah tobacco production and usage. The information presented is also expected to raise awareness on the health risks of hookah tobacco smoking. The experimental procedure involved many compounds, such as 1-Phenylethyl acetate (cas: 93-92-5) .

1-Phenylethyl acetate(cas:93-92-5) is a carboxylic ester. Application of 93-92-5 It may be prepared by acetylation of methyl phenyl carbinol; from benzaldehyde by reacting with magnesium methyl bromide and subsequent acetylation; from 1-bromoethylbenzene and silver acetate in acetic acid.

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Related Products of 106-02-5In 2022, Kazemi Targhi, Negar;Tavakoli, Omid;Nazemi, Ali Hekmat published 《Co-pyrolysis of lentil husk wastes and Chlorella vulgaris: Bio-oil and biochar yields optimization》. 《Journal of Analytical and Applied Pyrolysis》published the findings. The article contains the following contents:

The ever-increasing demand for fossil fuels has led to environmental issues and depletion of energy resources, as a consequence, a growing interest in biomass as a promising renewable and sustainable feedstock for biofuels production is developing. In this work, lentil husks (agricultural wastes) and Chlorella vulgaris (microalgae) were selected to investigate their interaction during co-pyrolysis process. Using a response surface methodol. (RSM), a series of experiments were designed and carried out in a fixed bed reactor varying the temperature of 400-600°;C, heating rate of 5-25°;C/min and algae to husk blend ratios of 0, 25, 50, 75, 100 wt% at constant flow rate of argon carrier gas, 0.4 L min-1. The yield of Bio-oil and biochar as co-pyrolysis products were studied both quant. and qual. The results unraveled a significant improvement on bio-oil yield by addition of C. vulgaris to lentil husk. Bio-oil yield increased from 13.8% to 20.8% by increasing algae content from 0% to 100% (T = 500°;C, HR = 15°;C min-1). While at T = 600°;C, the gas yield increased to 40.15%. and lower temperature (400°;C), favored biochar formation (39.5%), finally optimization results could lead to bio-oil yield of 18% (T = 479°;C, HR = of 16°;C min-1, R = 54%). The quality of the product at optimized level was featured by a rise in the carbon and a decrease in the oxygen content of bio-oil, and a bio-oil with improved higher heating value was obtained. The results of volatile products analyzed by Gas chromatog.-mass spectrometry (GC-MS) showing that, the co-pyrolytic oil was rich in alkanes and aromatics compounds Synergistical interactions between C. vulgaris and lentil husk, showed that alcs., ketones and esters went through a remarkable reduction and phenols formation as valuable chem. compounds was improved. To complete the study, the researchers used Oxacyclohexadecan-2-one (cas: 106-02-5) .

Oxacyclohexadecan-2-one(cas:106-02-5) is a monomer used to make PGA-co-pentadecalactone polymers to be used in the development of directly compressed prolonged release tablets of slightly soluble drugs such as ketoprofen.Related Products of 106-02-5It may be used for the synthesis of poly(pentadecanolide) (PPDL) by Novozyme 435 catalyzed ring-opening polymerization.

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Rakkan, Thanaphorn;Chana, Netnapa;Chirapongsatonkul, Nion;U-taynapun, Kittichon;Sangkharak, Kanokphorn published 《Screening and Identification of Newly Isolated Basic Red 9-Degrading Bacteria from Textile Wastewater and Their Ability to Produce Medium-Co-Long-Chain-Length Polyhydroxyalkanoates》 in 2022. The article was appeared in 《Journal of Polymers and the Environment》. They have made some progress in their research.SDS of cas: 112-62-9 The article mentions the following:

Newly isolated Basic Red 9-degrading bacteria were isolated from textile wastewater using a pretreatment method. Nine strains were isolated; however, only five strains accumulated polyhydroxyalkanoates (PHAs). Thereafter, PHA-producing strains were identified through 16S rDNA sequencing anal. and phylogenetic evaluation and were found to belong to Enterobacter with 100% identification. The five isolated strains were incubated with a PHAs-producing medium containing 100 mg/l Basic Red 9 (BR9) to study decolorization efficiency, and PHAs production Enterobacter sp. strains TS3 and TS1L effectively decolorized the BR9 dye with degradation rates of 63.43% and 79.15%, resp. PHAs production from TS3 and TS1L was also observed to be 75.34% and 72.32% of dry cell weight (DCW), resp. Furthermore, Enterobacter sp. strains TS3 and TS1L accumulated medium-co-long-chain-length PHAs (mcl-co-lcl PHAs). This is the first report using Enterobacter strains to degrade BR9 dyes from textile wastewater and to assess their ability to produce mcl-co-lcl PHAs. The experimental procedure involved many compounds, such as Methyl oleate (cas: 112-62-9) .

Methyl oleate(cas: 112-62-9) is a fatty acid methyl ester resulting from the formal condensation of the carboxy group of oleic acid with methanol.SDS of cas: 112-62-9 Methyl oleate(cas: 112-62-9) is an intermediate for detergents, emulsifiers, wetting agents, stabilizers, textile treatments, plasticizers for duplicating inks, rubbers, waxes etc.

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Deng, Yifan;Zou, Yike;Yang, Chia-Ping H.;Houk, K. N.;Smith, Amos B. III published 《Total Syntheses of (+)-Peniciketals A-B and (-)-Diocollettines A Exploiting a Photoisomerization/Cyclization Union Protocol》 in 2021. The article was appeared in 《Journal of Organic Chemistry》. They have made some progress in their research.Product Details of 4707-47-5 The article mentions the following:

A late-stage photoisomerization/cyclization union tactic, in conjunction with Type I Anion Relay Chem. (ARC), permits enantioselective total syntheses and then biol. evaluation of (+)-peniciketals A (I) and B (II). The photochem. protocol was further showcased by an efficient three-step construction of the architecturally complex polycyclic skeleton found in (-)-diocollettine A (III). The mechanism and diastereoselectivity of the photochem. protocol have also been explored by both experiment and d. functional theory calculations To complete the study, the researchers used Methyl 2,4-dihydroxy-3,6-dimethylbenzoate (cas: 4707-47-5) .

Methyl 2,4-dihydroxy-3,6-dimethylbenzoate(4707-47-5) is used in biological study as role of androgens in inducing distinct response of epithelial-mesenchymal transition factors in human prostate cancer cells.Product Details of 4707-47-5

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