Month: October 2022

Reference of 2-Hexyl-1-decanol《Characterization of the physicochemical changes and volatile compound fingerprinting during the chicken sugar-smoking process》 was published in 2021. The authors were Chang, Hong;Wang, Ying;Xia, Qiang;Pan, Daodong;He, Jun;Zhang, Haimeng;Cao, Jinxuan, and the article was included in《Poultry Science》. The author mentioned the following in the article:

Sugar-smoking contributes to improving flavor attributes of meat products. However, there is rather limited information concerning the relationship between sugar-smoking process parameters and volatile compound (VC) fingerprinting as well as related quality attributes of sugar-smoked chicken. In this work, the changes in VC across the whole sugar-smoking process were determined and analyzed and physicochem. properties, free fatty acid, thiobarbituric acid reactive substances values, and E-nose were also performed to characterize the quality properties of sugar-smoked chicken breast (CB) and chicken skin (CS). Results suggested that a higher amount (P < 0.05) of total VC was observed in CS compared with CB during the whole processing, which may be correlated with higher thiobarbituric acid reactive substances values, and higher polyunsaturated fatty acid/saturated fatty acid ratio. According to E-nose anal., the volatile flavor is clearly separated in the sugar-smoking stage. Volatile fingerprinting results revealed that heterocycles were the characteristic flavor formed during sugar-smoking process and hexanal, nonanal, furfural, 5-methyl-2-furancarboxaldehyde, and 2-acetyl-5-methylfuran were the major volatiles of the CS, which was closely related to lipid oxidation and caramelization reaction. Above all, the flavor of sugar-smoked chicken was mainly derived from CS and sugar-smoked process improved the flavor of CS. This study could provide theor. guidance for regulation of the color and flavor of sugar-smoked chicken and further promote the development of the industry. And 2-Hexyl-1-decanol (cas: 2425-77-6) was used in the research process.

2-Hexyl-1-decanol(cas: 2425-77-6) is a branched alcohol. It is one of the constituent of the essential oil, extracted from the roots of Adiantum flabellulatum. Reference of 2-Hexyl-1-decanol

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Meldrum, B. S. published 《Convulsive effects of 4-deoxypyridoxine in photosensitive baboons》 in 1971. The article was appeared in 《British Journal of Pharmacology》. They have made some progress in their research.Synthetic Route of C8H12ClNO2 The article mentions the following:

In baboons (Papio papio) which when exposed to intermittent light stimulation (ILS) showed myoclonus and electroencephalographic signs of epilepsy, deoxypyridoxine-HCl (I) (10-20 mg/kg, i.v.) did not modify the responses, while 15 min-2 hr after 40-60 mg I/kg, the myoclonic responses to ILS were enhanced. Animals normally giving transient myoclonic responses showed rhythmic myoclonus of the eyelids and face continuing for several sec after the end of ILS. In 4 out of 6 baboons after 80-100 mg I/kg this self-sustaining myoclonus developed into a full tonic-clonic seizure at least once 45-180 min after the drug injection. The injection of 105-150 mg I/kg not only enhanced myoclonic responses to ILS but also led to the appearance after 46-67 min of spontaneous seizures. These recurred every 10-15 min, were often only partial, and commonly originated in, and were sometimes confined to, the occipital cortex. An excess of pyridoxine, given i.v. a few minutes before and after the I, blocked both the enhancement of photosensitivity produced by 100 mg I/kg and spontaneous seizures produced by 150 mg/kg. I may produce these convulsive effects by interfering with the formation or action of pyridoxal phosphate. And 5-(hydroxymethyl)-2,4-dimethylpyridin-3-ol hydrochloride (cas: 148-51-6) was used in the research process.

5-(hydroxymethyl)-2,4-dimethylpyridin-3-ol hydrochloride(cas:148-51-6 Synthetic Route of C8H12ClNO2) is a vitamin B6 antimetabolite with diverse biological activities. It inhibits transport of pyridoxine , pyridoxal, and pyridoxamine in and reduces growth of S. carlsbergensis cells. DOP inhibits sphingosine-1-phosphate (S1P) lyase and reduces cyclic stretch-induced apoptosis in alveolar epithelial MLE-12 cells.

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Name: 2,2-Methylenebis(6-tert-butyl-p-cresol)《Effects of Lactobacillus plantarum and Saccharomyces cerevisiae co-fermentation on the structure and flavor of wheat noodles》 was published in 2022. The authors were Ge, Zhenzhen;Wang, Weijing;Xu, Mingyue;Gao, Shanshan;Zhao, Yuxiang;Wei, Xiaopeng;Zhao, Guangyuan;Zong, Wei, and the article was included in《Journal of the Science of Food and Agriculture》. The author mentioned the following in the article:

Although traditional fermented noodles possess high eating quality, it is difficult to realize large-scale industrialization as a result of the complexity of spontaneous fermentation In present study, com. Lactobacillus plantarum and Saccharomyces cerevisiae were applied in the preparation of fermented noodles. The changes in the structural characteristics and aroma components of noodles after fermentation were investigated via SEM (SEM), Fourier transform IR spectroscopy (FTIR), low-field magenetic resonance imaging, electronic nose, and simultaneous distillation and extraction/gas chromatog.-mass spectrometry (GC-MS) anal. SEM images revealed that co-fermentation of the L. plantarum and S. cerevisiae for 10-40 min enhanced the continuity of the gluten network and promoted the formation of pores. FTIR spectra anal. showed that the co-fermentation increased significantly (P < 0.05) the proportion of α-helixes of noodles gluten protein, enhancing the orderliness of the mol. structure of protein. After fermentation for 10-40 min, the signal d. of hydrogen protons increased from the surface to the core, indicating that the water in the noodles migrated inward during a short fermentation process. The results of multivariate statistical anal. demonstrated that the main aroma differences between unfermented and fermented noodles were mainly in hydrocarbons, aromatic compounds and inorganic sulfides. GC-MS anal. indicated that the main volatile compounds detected were 2, 4-di-tert-butylphenol, bis (2-ethylhexyl) adipate, Bu acetate, di-Bu phthalate, dioctyl terephthalate, bis (2-ethylhexyl) phthalate, pentanol and 2-pentylfuran, etc. Co-fermentation with L. plantarum and S. cerevisiae improved the structure of gluten network and imparted more desirable volatile components to wheat noodles. 2022 Society of Chem. Industry. The experimental procedure involved many compounds, such as 2,2-Methylenebis(6-tert-butyl-p-cresol) (cas: 119-47-1) .

Name: 2,2-Methylenebis(6-tert-butyl-p-cresol)2,2′-Methylenebis(4-methyl-6-tert-butylphenol)(CAS: 119-47-1) is a natural product found in Streptomyces and Aspergillus fumigatus .

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Name: 2,5-Dimethyl-2,5-hexanediol《The synthesis of lactone-bridged 1,3,5-triphenylbenzene derivatives as pi-expanded coumarin triskelions》 was published in 2017. The authors were Hintz, Heather A.;Sortedahl, Nicholas J.;Meyer, Samantha M.;Decato, Daniel A.;Dahl, Bart J., and the article was included in《Tetrahedron Letters》. The author mentioned the following in the article:

Two triply lactone-bridged 1,3,5-triphenylbenzene derivatives I and II with solubilizing moieties were synthesized in five and six steps from com. available starting materials. Compounds containing the 1,3,5-triphenylbenzene core with two atom bridges are relatively unknown. This new class of pi-expanded coumarins contain triskelion architectures and X-ray crystallog. studies of one of the triskelions indicated that the 1,3,5-triphenylbenzene core adopted a near-planar geometry. This is the only known example of a two atom-bridged 1,3,5-triphenylbenzene derivative to adopted a planar structure.2,5-Dimethyl-2,5-hexanediol (cas: 110-03-2) were involved in the experimental procedure.

2,5-Dimethyl-2,5-hexanediol(cas:110-03-2) is used as an intermediate in the preparation of 2.5-Dimethyl-2.5-bis(tertbutyl-peroxy)hexane. It is also used in the synthesis of six- and seven-membered heterocyclic boron compounds.Name: 2,5-Dimethyl-2,5-hexanediol

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Yang, Hyeri;Kim, Da-eun;Jang, Won-Hee;An, Susun;Cho, Sun-A.;Jung, Mi-Sook;Lee, Ji Eun;Yeo, Kyung-Wook;Koh, Sang Bum;Jeong, Tae-Cheon;Kang, Mi-Jeong;Chun, Young-Jin;Lee, Su-Hyon;Lim, Kyung-Min;Bae, SeungJin published 《Prevalidation trial for a novel in vitro eye irritation test using the reconstructed human cornea-like epithelial model, MCTT HCE》 in 2017. The article was appeared in 《Toxicology In Vitro》. They have made some progress in their research.SDS of cas: 110-03-2 The article mentions the following:

Here, the authors report the results of a prevalidation trial for an in vitro eye irritation test (EIT) using the reconstructed human cornea-like epithelium, MCTT HCE. The optimal cutoff to determine irritation in the prediction model was established at 35% with the receiver operation characteristics(ROC) curve for 126 substances. Within-lab(WL) and between-lab(BL) reproducibility was tested for 20 reference substances by 3 participating laboratories Viability data described by mean or ± 1/2 difference between duplicate wells, and scatter plots, demonstrated the WL/BL consistency. WL/BL concordance with the binary decision, whether non-irritant or irritant was estimated to be 85-95% and 95%, resp. WL/BL reproducibility of viability data was further supported by a strong correlation(ICC, r >0.9). WL/BL agreement of binary decisions was also examined by Fleiss’ Kappa statistics, which showed a strong level of agreement (>0.78), nevertheless weaker than the reproducibility of the viability. The EIT with MCTT HCE exhibited a sensitivity of 82.2% (60/73), a specificity of 81.1% (43/53), and an accuracy of 81.8% (103/126) for 126 reference substances (for liquids; a sensitivity of 100% (47/47), a specificity of 70.6% (24/34), and an accuracy of 87.7% (71/81), and for solids, a sensitivity of 50% (13/26), a specificity of 100% (19/19), and an accuracy of 71.1% (32/45)), suggesting that the accuracy is satisfactory but the sensitivity needs improvement, which shall be addressed through correcting the poor sensitivity for solid substances in future full validation trials. And 2,5-Dimethyl-2,5-hexanediol (cas: 110-03-2) was used in the research process.

2,5-Dimethyl-2,5-hexanediol(cas:110-03-2) was used in the synthesis of six- and seven-membered heterocyclic boron compounds containing intramolecular N-B bond.SDS of cas: 110-03-2

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Name: 4-(2-Phenylpropan-2-yl)phenolIn 2021, Yue, Wenlong;Yin, Chao-Fan;Sun, Limin;Zhang, Jie;Xu, Ying;Zhou, Ning-Yi published 《Biodegradation of bisphenol-A polycarbonate plastic by Pseudoxanthomonas sp. strain NyZ600》. 《Journal of Hazardous Materials》published the findings. The article contains the following contents:

Bisphenol-A polycarbonate (PC) is a widely used engineering thermoplastic and its release has caused damage to the ecosystem. Microbial degradation of plastic represents a sustainable approach for PC reduction In this study, a bacterial strain designated Pseudoxanthomonas sp. strain NyZ600 capable of degrading PC was isolated from activated sludge by using di-Ph carbonate as a surrogate substrate. Within a 30-day period of incubating with strain NyZ600, PC films were analyzed with at. force microscopy, scanning electron microscope, water contact angle, XPS, fourier transform IR spectroscopy, differential scan calorimeter and thermogravimetric anal. technique. The analyses results indicated that the treated PC films were bio-deteriorated and formed some “corrosion pits” on the PC film surface. In addition, strain NyZ600 performed broad depolymerization of PC indicated by the reduction of Mn from 23.55 to 16.75 kDa and Mw from 45.67 to 31.97 kDa and two degradation products bisphenol A and 4-cumylphenol (the two monomers of PC) were also found, which established that PC were biodegraded by strain NyZ600. Combing all above results, it is clear that the strain NyZ600 can degrade PC which provides a unique example for bacterial degradation of PC and a feasibility for the removal of PC waste.4-(2-Phenylpropan-2-yl)phenol (cas: 599-64-4) were involved in the experimental procedure.

4-(2-Phenylpropan-2-yl)phenol(cas:599-64-4) is a natural product found in Panax ginseng.Name: 4-(2-Phenylpropan-2-yl)phenol 4-(2-Phenylpropan-2-yl)phenol is a useful reagent for preparing and characterizing aromatic polyphosphonates as high refractive index polymers.

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Rotstein, Benjamin H.;Hooker, Jacob M.;Woo, Jiyeon;Collier, Thomas Lee;Brady, Thomas J.;Liang, Steven H.;Vasdev, Neil published 《Synthesis of [¹¹C]Bexarotene by Cu-Mediated [¹¹C]Carbon Dioxide Fixation and Preliminary PET Imaging》 in 2014. The article was appeared in 《ACS Medicinal Chemistry Letters》. They have made some progress in their research.Related Products of 110-03-2 The article mentions the following:

Bexarotene (Targretin) is a retinoid X receptor (RXR) agonist that has applications for treatment of T cell lymphoma and proposed mechanisms of action in Alzheimer’s disease that have been the subject of recent controversy. Carbon-11 labeled bexarotene ([¹¹C-carbonyl]4-[1-(3,5,5,8,8-pentamethyltetralin-2-yl)ethenyl]benzoic acid) was synthesized using a Cu-mediated cross-coupling reaction employing an arylboronate precursor and [¹¹C]carbon dioxide under atm. pressure in 15 ± 2% uncorrected radiochem. yield (n = 3), based on [¹¹C]CO₂. Judicious choice of solvents, catalysts, and additives, as well as precursor concentration and purity of [¹¹C]CO₂, enabled the preparation of this ¹¹C-labeled carboxylic acid. Formulated [¹¹C]bexarotene was isolated (>37 mCi) with >99% radiochem. purity in 32 min. Preliminary positron emission tomog.-magnetic resonance imaging revealed rapid brain uptake in nonhuman primate in the first 75 s following i.v. administration of the radiotracer (specific activity >0.3 Ci/μmol at time of injection), followed by slow clearance (Δ = -43%) over 60 min. Modest uptake (SUV_max = 0.8) was observed in whole brain and regions with high RXR expression. To complete the study, the researchers used 2,5-Dimethyl-2,5-hexanediol (cas: 110-03-2) .

2,5-Dimethyl-2,5-hexanediol(cas:110-03-2) on heteropoly acid catalyzed dehydration yields cyclic ethers via stereospecific intramolecular SN2 mechanism. It reacts with nitriles in concentrated sulfuric acid to yield Δ1-pyrrolines.Related Products of 110-03-2

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Thouennon, Erwan;Delfosse, Vanessa;Bailly, Remy;Blanc, Pauline;Boulahtouf, Abdelhay;Grimaldi, Marina;Barducci, Alessandro;Bourguet, William;Balaguer, Patrick published 《Insights into the activation mechanism of human estrogen-related receptor γ by environmental endocrine disruptors》 in 2019. The article was appeared in 《Cellular and Molecular Life Sciences》. They have made some progress in their research.Computed Properties of C15H16O The article mentions the following:

The estrogen-related receptor γ (ERRγ, NR3B3) is a constitutively active nuclear receptor which has been proposed to act as a mediator of the low-dose effects of a number of environmental endocrine-disrupting chems. (EDCs) such as the xenoestrogen bisphenol-A (BPA). To better characterize the ability of exogenous compounds to bind and activate ERRγ, we used a combination of cell-based, biochem., structural and computational approaches. A purposely created stable cell line allowed for the determination of the EC50s for over 30 environmental ERRγ ligands, including previously unknown ones. Interestingly, affinity constants (Kds) of the most potent compounds measured by isothermal titrationcalorimetry were in the 50-500 nM range, in agreement with their receptor activation potencies. Crystallog. anal. of the interaction between the ERRγ ligand-binding domain (LBD) and compounds of the bisphenol, alkylphenol and naphthol families revealed a partially shared binding mode and minimal alterations of the receptor conformation upon ligand binding. Further biophys. characterizations coupled to mol. dynamics simulations suggested a mechanism through which ERRγ ligands would exhibit their agonistic properties by preserving the transcriptionally active form of the receptor while rigidifying some loop regions with associated functions. This unique mechanism contrasts with the classical one involving a ligand-induced repositioning and stabilization of the C-terminal activation helix H12. The experimental procedure involved many compounds, such as 4-(2-Phenylpropan-2-yl)phenol (cas: 599-64-4) .

4-(2-Phenylpropan-2-yl)phenol(cas:599-64-4) is a natural product found in Panax ginseng.Computed Properties of C15H16O 4-(2-Phenylpropan-2-yl)phenol is a useful reagent for preparing and characterizing aromatic polyphosphonates as high refractive index polymers.

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Scharinger, Fabian;Palvolgyi, Adam Mark;Weisz, Melanie;Weil, Matthias;Stanetty, Christian;Schnuerch, Michael;Bica-Schroder, Katharina published 《Sterically Demanding Flexible Phosphoric Acids for Constructing Efficient and Multi-Purpose Asymmetric Organocatalysts》. The research results were published in《Angewandte Chemie, International Edition》 in 2022.SDS of cas: 119-47-1 The article conveys some information:

A novel approach for various asym. transformations of cyclic enones, e.g., 2-cyclohepten-1-one has been described. The combination of readily accessible chiral diamines and sterically demanding flexible phosphoric acids resulted in a simple and highly tunable catalyst framework. The careful optimization of the catalyst components led to the identification of a particularly powerful and multi-purpose organocatalyst, which was successfully applied for asym. epoxidations, aziridinations, aza-Michael-initiated cyclizations, as well as for a novel Robinson-like Michael-initiated ring closure/aldol cyclization. High catalytic activities and excellent stereocontrol were observed for all four reaction types, indicating the excellent versatility of the catalytic system. Furthermore, a simple change in the diamine’s configuration provided easy access to both product antipodes in all cases. The experimental procedure involved many compounds, such as 2,2-Methylenebis(6-tert-butyl-p-cresol) (cas: 119-47-1) .

SDS of cas: 119-47-12,2′-Methylenebis(4-methyl-6-tert-butylphenol)(CAS: 119-47-1) is a natural product found in Streptomyces and Aspergillus fumigatus .

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HPLC of Formula: 599-64-4《A tiered high-throughput screening approach for evaluation of estrogen and androgen receptor modulation by environmentally relevant bisphenol A substitutes》 was published in 2020. The authors were Keminer, Oliver;Teigeler, Matthias;Kohler, Manfred;Wenzel, Andrea;Arning, Juergen;Kassner, Franziska;Windshuegel, Bjoern;Eilebrecht, Elke, and the article was included in《Science of the Total Environment》. The author mentioned the following in the article:

Bisphenol A (BPA) is a high production volume chem. with a broad application spectrum. As an endocrine disrupting chem., mainly by modulation of nuclear receptors (NRs), BPA has an adverse impact on organisms and is identified as a substance of very high concern under the European REACH regulation. Various BPA substitution candidates have been developed in recent years, however, information concerning the endocrine disrupting potential of these substances is still incomplete or missing. In this study, we intended to investigate the endocrine potential of BPA substitution candidates used in environmentally relevant applications such as thermal paper or epoxy resins. Based on an extensive literature and patent search, 33 environmentally relevant BPA substitution candidates were identified. In order to evaluate the endocrine potential of the BPA replacements, a screening cascade consisting of biochem. and cell-based assays was employed to investigate substance binding to the NRs estrogen receptor α and β, as well as androgen receptor, co-activator recruitment and NR-mediated reporter gene activation. In addition, a computational docking approach for retrospective prediction of receptor binding was carried out. Our results show that some BPA substitution candidates, for which so far no or only very few data were available, possess a substantial endocrine disrupting potential (TDP, BPZ), while several substances (BPS, D-8, DD70, DMP-OH, TBSA, D4, CBDO, ISO, VITC, DPA, and DOPO) did not reveal any NR binding. To complete the study, the researchers used 4-(2-Phenylpropan-2-yl)phenol (cas: 599-64-4) .

4-(2-Phenylpropan-2-yl)phenol(cas:599-64-4) is a natural product found in Panax ginseng.HPLC of Formula: 599-64-4 4-(2-Phenylpropan-2-yl)phenol is a useful reagent for preparing and characterizing aromatic polyphosphonates as high refractive index polymers.

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