Tag: M.W=300-400

An article In Silico Modeling Method for Computational Aquatic Toxicology of Endocrine Disruptors: A Software-Based Approach Using QSAR Toolbox WOS:000486589800121 published article about (Q)SAR APPLICATION TOOLBOX; ACUTE TOXICITY; STRUCTURAL ALERTS; CLASSIFICATION; MUTAGENICITY; TOXTREE; PREDICTION; CHEMICALS; PRODUCTS in [Bohlen, Marie-Leonie; Jeon, Hyun Pyo; Kim, Young Jun; Sung, Baeckkyoung] KIST Europe Forschungsgesell MbH, Saarbrucken, Germany in 2019, Cited 39. Name: 4,4′-Dibromobiphenyl. The Name is 4,4′-Dibromobiphenyl. Through research, I have a further understanding and discovery of 92-86-4

Computational analyses of toxicological processes enables high-throughput screening of chemical substances and prediction of their endpoints in biological systems. In particular, quantitative structure-activity relationship (QSAR) models have been increasingly applied to assess the environmental effects of a plethora of toxic materials. In recent years, some more highlighted types of toxicants are endocrine disruptors (EDs, which are chemicals that can interfere with any hormone-related metabolism). Because EDs may significantly affect animal development and reproduction, rapidly predicting the adverse effects of EDs using in silico techniques is required. This study presents an in silico method to generate prediction data on the effects of representative EDs in aquatic vertebrates, particularly fish species. The protocol describes an example utilizing the automated workflow of the QSAR Toolbox software developed by the Organization for Economic Co-operation and Development (OECD) to enable acute ecotoxicity predictions of EDs. As a result, the following are determined: (1) calculation of the numerical correlations between the concentration for 50% of lethality (LC50) and octanol-water partition coefficient (K-ow), (2) output performances in which the LC50 values determined in experiments are compared to those generated by computations, and (3) the dependence of estrogen receptor binding affinity on the relationship between K-ow and LC50.

Bye, fridends, I hope you can learn more about C12H8Br2, If you have any questions, you can browse other blog as well. See you lster.. Name: 4,4′-Dibromobiphenyl

Reference:
Benzoxazole – Wikipedia,
,Benzoxazole | C7H5NO – PubChem

Category: benzoxazole. Recently I am researching about CHEMICALS, Saw an article supported by the Dutch Ministry of Infrastructure and Water Management. Published in PERGAMON-ELSEVIER SCIENCE LTD in OXFORD ,Authors: Wassenaar, PNH; Verbruggen, EMJ; Cieraad, E; Peijnenburg, WJGM; Vijver, MG. The CAS is 92-86-4. Through research, I have a further understanding and discovery of 4,4′-Dibromobiphenyl

The fish bioconcentration factor (BCF) is an important aspect within bioaccumulation assessments. Several factors have been suggested to influence BCF values – including species, developmental stage, mixture exposure, and calculation method. However, their exact contribution to variance in BCF values is unknown. Within this study we assessed the relative impact of these test characteristics on BCF values and analyzed the reproducibility of aquatic exposure bioconcentration tests. Linear mixed effects analyses were performed on a newly develop database to investigate the relationship between the response variable (i.e. lipid normalized log BCF values) and several test characteristics as fixed effects. Lower BCF values were observed for substances that were simultaneously applied with high molecular weight polycyclic aromatic hydrocarbons compared to single substance exposure (with an average difference of -0.81 log BCF). Also, lower BCFs upon kinetic determination were observed compared to steady-state BCFs (log BCF -0.27), and lower BCFs for species from the Ostariophysi subcohort level (log BCF -0.17 to -0.15). In addition, data analysis showed high variation within BCF values for single substances (average SD = log BCF 0.21), which questions the robustness of the current bioaccumulation assessments. For example, the 95% confidence range of a BCF value of 2500 ranges from 953 (‘not-bioaccumulative’) to 6561 (‘very bioaccumulative’). Our results show that the use of one single BCF leads to a high uncertainty in bioaccumulation assessments. We strongly recommend that within future bioconcentration studies, the used experimental design and test conditions are described in detail and justified to support solid interpretation. (C) 2019 The Authors. Published by Elsevier Ltd.

Category: benzoxazole. Welcome to talk about 92-86-4, If you have any questions, you can contact Wassenaar, PNH; Verbruggen, EMJ; Cieraad, E; Peijnenburg, WJGM; Vijver, MG or send Email.

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Benzoxazole – Wikipedia,
,Benzoxazole | C7H5NO – PubChem

Authors Xiong, BJ; Wang, T; Sun, HT; Li, Y; Kramer, S; Cheng, GJ; Lian, Z in AMER CHEMICAL SOC published article about DIFLUOROMETHYL 2-PYRIDYL SULFONE; LIGHT-EMITTING-DIODES; C-O ACTIVATION; AROMATIC-ALDEHYDES; DIFLUOROALKENES; ALKENES; DIFLUOROOLEFINATION; CONSTRUCTION; AMIDATION; HALIDES in [Xiong, Baojian; Sun, Haotian; Li, Yue; Lian, Zhong] Sichuan Univ, West China Hosp, State Key Lab Biotherapy, Dept Dermatol, Chengdu 610041, Peoples R China; [Xiong, Baojian; Sun, Haotian; Li, Yue; Lian, Zhong] Sichuan Univ, West China Hosp, Canc Ctr, Chengdu 610041, Peoples R China; [Xiong, Baojian; Sun, Haotian; Li, Yue; Lian, Zhong] Sichuan Univ, West China Sch Pharm, Chengdu 610041, Peoples R China; [Wang, Ting; Cheng, Gui-Juan] Chinese Univ Hong Kong Shenzhen, Sch Life & Hlth Sci, Shenzhen Key Lab Steroid Drug Dev, Warshel Inst Computat Biol, Shenzhen 518172, Peoples R China; [Kramer, Soren] Tech Univ Denmark, Dept Chem, DK-2800 Lyngby, Denmark in 2020, Cited 82. Category: benzoxazole. The Name is 4,4′-Dibromobiphenyl. Through research, I have a further understanding and discovery of 92-86-4

A nickel-catalyzed cross-electrophile coupling reaction between (hetero)aryl bromides and 2,2-difluorovinyl tosylate is presented. This protocol provides facile incorporation of the gem-difluorovinyl moiety in organic molecules. The method features mild reaction conditions, good functional group tolerance, and excellent yields. Furthermore, mechanistic experiments and DFT studies indicate a Ni(0)/Ni(II) catalytic cycle, thus differing from the currently accepted catalytic cycle for nickel-catalyzed C(sp(2))-C(sp(2)) cross-electrophile coupling reactions.

Welcome to talk about 92-86-4, If you have any questions, you can contact Xiong, BJ; Wang, T; Sun, HT; Li, Y; Kramer, S; Cheng, GJ; Lian, Z or send Email.. Category: benzoxazole

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Benzoxazole – Wikipedia,
,Benzoxazole | C7H5NO – PubChem

I found the field of Chemistry very interesting. Saw the article Synthesis and Microbiological Properties of Novel Bis-Quaternary Ammonium Compounds Based on Biphenyl Spacer published in 2019. Category: benzoxazole, Reprint Addresses Vereshchagin, AN (corresponding author), Russian Acad Sci, ND Zelinsky Inst Organ Chem, 47 Leninsky Procpekt, Moscow 119991, Russia.. The CAS is 92-86-4. Through research, I have a further understanding and discovery of 4,4′-Dibromobiphenyl

Novel gemini (tail-head-spacer-head-tail) bis-quaternary ammonium compounds (bis-QACs) with a biphenyl spacer between two pyridinium heads were synthesized and compared with commonly used antiseptics such as benzalkonium chloride (BAC) and chlorhexidine digluconate (CHG). The series of compounds showed high inhibitory activity against five bacterial strains and two fungi. The compounds, which contain C8H17-C10H21 aliphatic tails best within the series. A counterion change does not affect MIC in general. Cytotoxicity on human embryonic kidney cells and haemolysis were also investigated. For bis-QACs cytotoxic effect was lower than for 3,3 ‘-[1,4-phenylenebis(oxy)]bis(1-dodecylpyridinium) dibromide (3PHBO-12), that is their closest structural analogue, and for BAC.

Category: benzoxazole. Welcome to talk about 92-86-4, If you have any questions, you can contact Vereshchagin, AN; Gordeeva, AM; Frolov, NA; Proshin, PI; Hansford, KA; Egorov, MP or send Email.

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Benzoxazole – Wikipedia,
,Benzoxazole | C7H5NO – PubChem

HPLC of Formula: C12H8Br2. In 2021 J POLYM SCI published article about THIENOTHIOPHENE; POLYMERS; THIOPHENE; MOIETIES; UNITS in [Isci, Recep; Gunturkun, Dilara; Yalin, Ahsen Sare; Ozturk, Turan] Istanbul Tech Univ, Dept Chem, Maslak, Turkey; [Ozturk, Turan] TUBITAK UME, Chem Grp Labs, Gebze, Turkey in 2021, Cited 35. The Name is 4,4′-Dibromobiphenyl. Through research, I have a further understanding and discovery of 92-86-4.

Two novel copolymers of 4-thieno[3,2-b]thiophen-3-ylbenzonitrile (TT-CN), possessing electron withdrawing cyano moiety, with anthracene (P1) and biphenyl (P2) were prepared via Suzuki coupling. Optic, electronic, and thermal properties of the copolymers were investigated through UV-Vis spectroscopy, cyclic voltammetry, gel permeation chromatography, and thermal gravimetric analysis. The polymers with anthracene and biphenyl had electronic band gaps of 2.01 and 1.90 eV, respectively. Both polymers demonstrated excellent large Stokes shifts of 101 (anthracene) and 105 nm (biphenyl) as well as very good thermal properties. As they had good optical, electronic, and thermal properties, they are promising candidates for electronic applications.

Welcome to talk about 92-86-4, If you have any questions, you can contact Isci, R; Gunturkun, D; Yalin, AS; Ozturk, T or send Email.. HPLC of Formula: C12H8Br2

Reference:
Benzoxazole – Wikipedia,
,Benzoxazole | C7H5NO – PubChem

Formula: C12H8Br2. Recently I am researching about COUPLING REACTION; ARYNES; INSERTION; BOND; METALATION, Saw an article supported by the National Natural Science Foundation of ChinaNational Natural Science Foundation of China (NSFC) [NSFC-21502171]; Natural Science Foundation of Zhejiang Province, ChinaNatural Science Foundation of Zhejiang Province [LY17B060001]. Published in AMER CHEMICAL SOC in WASHINGTON ,Authors: Chen, DL; Sun, Y; Chen, MY; Li, XJ; Zhang, L; Huang, X; Bai, YH; Luo, F; Peng, B. The CAS is 92-86-4. Through research, I have a further understanding and discovery of 4,4′-Dibromobiphenyl

Two benzyne-enabled desulfurization reactions have been demonstrated which convert diaryl sulfoxides and heteroaryl sulfoxides to biaryls and desulfurized heteroarenes, respectively. The reaction accessing biaryls tolerates a variety of functional groups, such as halides, pseudohalides, and carbonyls. Mechanistic studies reveal that both reactions proceed via a common assembly process but divergent disassemblies of the generated tetraaryl(heteroaryl) sulfuranes.

Welcome to talk about 92-86-4, If you have any questions, you can contact Chen, DL; Sun, Y; Chen, MY; Li, XJ; Zhang, L; Huang, X; Bai, YH; Luo, F; Peng, B or send Email.. Formula: C12H8Br2

Reference:
Benzoxazole – Wikipedia,
,Benzoxazole | C7H5NO – PubChem

Authors Mollart, C; Trewin, A in ROYAL SOC CHEMISTRY published article about DESIGN in [Mollart, Catherine; Trewin, Abbie] Univ Lancaster, Dept Chem, Lancaster LA1 4YB, England in 2020, Cited 14. Recommanded Product: 92-86-4. The Name is 4,4′-Dibromobiphenyl. Through research, I have a further understanding and discovery of 92-86-4

Conjugated microporous polymers (CMPs) synthesised in different solvents give different surface areas dependent on the solvent choice. No one solvent results in a high surface area across a range of different CMP materials. Here, we present an investigation into how the porosity of CMPs is affected by solvent polarity. It is seen that the trends differ depending on the respective monomer dipole moments and whether hydrogen bonding groups are present in the monomers and are able to interact with the respective solventviahydrogen bonding. It is believed that this methodology could be used to influence future materials design of both structure and synthesis strategy.

Recommanded Product: 92-86-4. Bye, fridends, I hope you can learn more about C12H8Br2, If you have any questions, you can browse other blog as well. See you lster.

Reference:
Benzoxazole – Wikipedia,
,Benzoxazole | C7H5NO – PubChem

Yamakawa, S; Wada, K; Hidaka, M; Hanasaki, T; Akagi, K in [Yamakawa, Shohei; Wada, Kohei; Hidaka, Masatomo; Akagi, Kazuo] Kyoto Univ, Dept Polymer Chem, Kyoto 6158510, Japan; [Hanasaki, Tomonori] Ritsumeikan Univ, Dept Appl Chem, Shiga 5258577, Japan; [Akagi, Kazuo] Ritsumeikan Univ, Res Org Sci & Technol, Shiga 5258577, Japan published Chiral Liquid-Crystalline Ionic Liquid Systems Useful for Electrochemical Polymerization that Affords Helical Conjugated Polymers in 2019, Cited 67. Application In Synthesis of 4,4′-Dibromobiphenyl. The Name is 4,4′-Dibromobiphenyl. Through research, I have a further understanding and discovery of 92-86-4.

Ionic liquids bearing both liquid crystallinity and chirality are potentially applicable for chiral electrochemical syntheses and polymerizations. In this study, two types of chiral nematic liquid-crystalline ionic liquids (N*-LCILs) are developed to achieve asymmetric electrochemical polymerization without a supporting electrolyte and even a chiral dopant. N*-LCILs are prepared i) by adding an axially chiral binaphthyl derivative as an external chiral dopant to imidazolium cation-based LCILs or ii) by incorporating a chiral binaphthyl phosphate as a counter anion in LCILs. Helical poly(3,4-ethylenedioxythiophene) (H-PEDOT) films are successfully synthesized through electrochemical polymerization of a dimer- or trimer-type 3,4-ethylenedioxythiophene (EDOT) monomer in an N*-LCIL, where N*-LCIL plays the role of both an asymmetric solvent and a supporting electrolyte. H-PEDOT films have helically pi-stacked structures of conjugated chains and spiral morphologies consisting of one-handed screwed fibril bundles. The plausible mechanism of the asymmetric electrochemical polymerization of EDOT in N*-LCIL is proposed to elucidate the correlation of helical sense between the helically pi-stacked chains, screwed fibril bundles, and N*-LCIL. The two present types of N*-LCILs are the first to enable supporting electrolyte-free asymmetric electrochemical polymerization, and they have potential applications in various types of chiral electrochemical syntheses, expanding the potential utility of ionic liquids.

Application In Synthesis of 4,4′-Dibromobiphenyl. Welcome to talk about 92-86-4, If you have any questions, you can contact Yamakawa, S; Wada, K; Hidaka, M; Hanasaki, T; Akagi, K or send Email.

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Benzoxazole – Wikipedia,
,Benzoxazole | C7H5NO – PubChem

Guan, J; Arias, JJR; Tomobe, K; Ansari, R; Marques, MDV; Rebane, A; Mahbub, S; Furgal, JC; Yodsin, N; Jungsuttiwong, S; Hashemi, D; Kieffer, J; Laine, RM in [Guan, J.; Arias, J. J. R.; Hashemi, D.; Kieffer, J.; Laine, R. M.] Univ Michigan, Dept Mat Sci & Engn, Ann Arbor, MI 48109 USA; [Arias, J. J. R.; Marques, M. de F., V] Univ Fed Rio de Janeiro, Inst Macromol Prof Eloisa Mano, BR-21941598 Rio De Janeiro, Brazil; [Tomobe, K.] Univ Michigan, Dept Chem, Ann Arbor, MI 48109 USA; [Ansari, R.] Univ Michigan, Dept Chem Engn, Ann Arbor, MI 48109 USA; [Rebane, A.] Montana State Univ, Dept Phys, Bozeman, MT 59717 USA; [Rebane, A.] NICPB, EE-12618 Tallinn, Estonia; [Mahbub, S.; Furgal, J. C.] Bowling Green State Univ, Dept Chem, Bowling Green, OH 43403 USA; [Mahbub, S.; Furgal, J. C.] Bowling Green State Univ, Ctr Photochem Sci, Bowling Green, OH 43403 USA; [Yodsin, N.; Jungsuttiwong, S.] Ubon Ratchathani Univ, Dept Chem, Mueang Si Khai 34190, Thailand; [Yodsin, N.; Jungsuttiwong, S.] Ubon Ratchathani Univ, Ctr Excellence Innovat Chem, Mueang Si Khai 34190, Thailand; [Laine, R. M.] Univ Michigan, Macromol Sci & Engn, Ann Arbor, MI 48109 USA published Unconventional Conjugation via vinylMeSi(O-)(2) Siloxane Bridges May Imbue Semiconducting Properties in [vinyl(Me)SiO(PhSiO1.5)(8)OSi(Me)vinyl-Ar] Double-Decker Copolymers in 2020, Cited 70. SDS of cas: 92-86-4. The Name is 4,4′-Dibromobiphenyl. Through research, I have a further understanding and discovery of 92-86-4.

A number of groups have invested considerable time synthesizing double-decker silsesquioxane (DD SQ) copolymers; however, to our knowledge, no one has sought to explore through-chain electronic communication between DD SQs via conjugated co-monomers. We recently demonstrated that stilbene derivatives of simple DD cages exhibit properties commensurate with formation of cage centered lowest unoccupied molecular orbitals (LUMOs), equivalent to LUMOs found in complete/incomplete SQ cages, [RStilbeneSiO(1.5)](8,10,12), [RStilbeneSiO(1.5)](7)[O1.5SiMe/nPr], [RStilbeneSiO(1.5)](7)[O0.5SiMe3](3), [RStilbeneSiO(1.5)](8)[O-0.5-SiMe3](4), and [RStilbeneSiO(1.5)](8)[OSiMe2](2). Such LUMOs support the existence of 3D excited-state conjugation in these cages. We describe here Heck catalyzed copolymerization of vinyl(Me)SiO(PhSiO1.5)(8)OSi(Me)vinyl (vinylDDvinyl) with X-Ar-X, where X = Br or I and X-Ar-X = 1,4-dihalobenzene, 4,4’dibromo-1,1′-biphenyl, 4,4 ”-dibromo-p-terphenyl, 4,4′-dibromo-trans-stilbene, 2,5-dibromothiophene, 5,5′-dibromo-2,2′-bithiophene, 2,5-dibromothieno[3,2-b]thiophene, and 2,7-dibromo-9,9-dimethylfluorene. Coincidentally model analogs were synthesized from vinylMeSi(OMe)(2). All compounds were characterized in detail by gel permeation chromatography (GPC), matrix-assisted laser desorption/ionization-time-of-flight, thermogravimetric analysis, nuclear magnetic resonance, Fourier transfer infrared spectroscopy, ultraviolet-visible spectroscopy, photoluminescence spectrometry, and two-photon absorption (2PA) spectroscopy. Modeling of HOMO-LUMO energy levels of related compounds with R = Me rather than Ph was also explored. In the current systems, we again see apparent conjugation in excited states, as previously observed, as indicated by 50-120 nm red shifts in emission from the corresponding model silane compounds. These results suggest unexpected semiconducting behavior via vinylMeSi(O-)(2) (siloxane) bridges between DD cages in polymers. The thiophene, bithiophene, and thienothiophene copolymers display integer charge transfer behavior on doping with 10 mol % F(4)TCNQ supporting excited-state conjugation; suggesting potential as p-type, doped organic/inorganic semiconductors.

Welcome to talk about 92-86-4, If you have any questions, you can contact Guan, J; Arias, JJR; Tomobe, K; Ansari, R; Marques, MDV; Rebane, A; Mahbub, S; Furgal, JC; Yodsin, N; Jungsuttiwong, S; Hashemi, D; Kieffer, J; Laine, RM or send Email.. SDS of cas: 92-86-4

Reference:
Benzoxazole – Wikipedia,
,Benzoxazole | C7H5NO – PubChem

Recently I am researching about CONSTITUTIONAL DYNAMIC CHEMISTRY; MOLECULAR BORROMEAN RINGS; ASSEMBLED PD-II; SUPRAMOLECULAR CHEMISTRY; INCLUSION COMPLEXES; SELECTIVE SYNTHESIS; COORDINATION; MACROCYCLES; GUEST; TRANSFORMATIONS, Saw an article supported by the Ministerio de Economia y Competitividad [CTQ2016-75629-P] Funding Source: Medline. Published in WILEY-V C H VERLAG GMBH in WEINHEIM ,Authors: Neira, I; Alvarino, C; Domarco, O; Blanco, V; Peinador, C; Garcia, MD; Quintela, JM. The CAS is 92-86-4. Through research, I have a further understanding and discovery of 4,4′-Dibromobiphenyl. Formula: C12H8Br2

A series of aryl-extended N-monoalkyl-4,4 ‘-bipyridinium salts L (aryl=1,4-phenyl, 4,4 ‘-biphenyl, 2,6-naphthyl and 9,10-anthracenyl) have been implemented by Pd-II/Pt-II-directed self-assembly into constitutionally dynamic systems (CDSs). As a result, the intended processes produced not only (en)M2L2 (en=ethylenediamine) metallacyclic species but also (en)M4L4 ring-in-ring aggregates, in equilibrium with the former, as a consequence of the hydrophobic nature of the aryl rings within the 4,4 ‘-bipyridinium scaffold. The key feature of the obtained dynamic systems is the possibility of modulating their response against external stimuli by modifying the hydrophobic character of the ligand. While the different dynamic libraries follow the same trends upon changes in concentration, temperature, polarity of the medium, or addition of an aromatic chemical effector, subtle changes in the ligand hydrophobic core results in a fine-tuning of the speciation when applying a certain degree of the different stimulus. The exception is the anthracene-containing derivative, which does not form inclusion complexes or self-threaded structures.

Formula: C12H8Br2. Welcome to talk about 92-86-4, If you have any questions, you can contact Neira, I; Alvarino, C; Domarco, O; Blanco, V; Peinador, C; Garcia, MD; Quintela, JM or send Email.

Reference:
Benzoxazole – Wikipedia,
,Benzoxazole | C7H5NO – PubChem