Tag: M.W:200-300

In general, if the atoms that make up the ring contain heteroatoms, such rings become heterocycles, and organic compounds containing heterocycles are called heterocyclic compounds. An article called Multiresponse Shape-Memory Nanocomposite with a Reversible Cycle for Powerful Artificial Muscles, published in 2021-02-09, which mentions a compound: 693-67-4, Name is 1-Bromoundecane, Molecular C11H23Br, Name: 1-Bromoundecane.

In the field of bionic soft robots and microrobots, artificial muscle materials have exhibited unique potential for cutting-edge applications. However, current mainstream thermal-responsive artificial muscles based on semicrystalline polymers (SCPs), despite their excellent phys. properties, suffer from the limitation of environmental stimuli in practice, while their photodriven counterparts adopting liquid crystal elastomers (LCEs) lack ductility. Herein, a novel multifunctional programmable artificial muscle with a unique patch-sewing structure formed by π-π stacking between azobenzene groups was designed, which combined the advantages of SCPs and LCEs. The nanocomposite demonstrated a unique combination between artificial muscle performance (46.5 times the energy d. and 26.6 times the power d. of human skeletal muscles) and programmability (274.84% strain and 100% shape-memory recovery rate within 1 s). Meanwhile, coupling the photoisomerization of azobenzene and the photothermal conversion of gold nanorods, the cycle of deformation triggered by UV light and restoring by IR light could be accomplished rapidly within 30 s. A COMSOL Multiphysics model was established and the corresponding finite element anal. verified the photoactuation and captured the general principle of light initiation in elastomers. These demonstrate that the multifunctional programmable elastomer is promising for artificial muscle applications, especially for photoinduced actuation.

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Tetrahydroisoquinoline – Wikipedia,
1,2,3,4-Tetrahydroisoquinoline | C9H11N – PubChem

The chemical properties of alicyclic heterocycles are similar to those of the corresponding chain compounds. Compound: 1-Bromoundecane, is researched, Molecular C11H23Br, CAS is 693-67-4, about Incorporation of alkylthio side chains on benzothiadiazole-based non-fullerene acceptors enables high-performance organic solar cells with over 16% efficiency, the main research direction is alkylthio benzothiadiazole electron acceptor organic solar cell.Related Products of 693-67-4.

Y6-type non-fullerene acceptors (NFAs) with an acceptor-donor-acceptor′-donor-acceptor (A-D-A′-D-A) structure have been very popular in the field of organic solar cells (OSCs) due to their excellent performances. In this study, two novel NFAs, BTPS-4F and BTPS-4Cl were designed by incorporating undecylthio side chains into a thienothiophene moiety and connecting it to two different halogenated 2-(3-oxo-2,3-dihydroinden-1-ylidene)malononitrile end groups (2F-IC and 2Cl-IC) resp. When blended with a donor polymer, PM6, BTPS-4F-based devices achieved a high power conversion efficiency (PCE) of up to 16.2% with an open-circuit voltage (VOC) of 0.82 V, a short-circuit c.d. (JSC) of 25.2 mA cm-2 and a fill factor (FF) of 0.78, while BTPS-4Cl-based devices achieved an inferior PCE of 13.5%. This is the first time alkylthio chains are employed on Y6-like NFAs to achieve high-performance OSCs. Subsequent characterization showed that the upshifted energy level of BTPS-4F and the better intermol. packing in PM6:BTPS-4F blends are the major reasons for the enhanced performance of BTPS-4F-based devices over BTPS-4Cl-based ones. This work provides high-performance non-fullerene acceptors for OSCs and demonstrates a promising mol. design strategy that can effectively regulate their energy levels and morphol.

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Tetrahydroisoquinoline – Wikipedia,
1,2,3,4-Tetrahydroisoquinoline | C9H11N – PubChem

Epoxy compounds usually have stronger nucleophilic ability, because the alkyl group on the oxygen atom makes the bond angle smaller, which makes the lone pair of electrons react more dissimilarly with the electron-deficient system. Compound: 1-Bromoundecane, is researched, Molecular C11H23Br, CAS is 693-67-4, about Anisotropic, Organic Ionic Plastic Crystal Mesophases from Persubstituted Imidazolium Pentacyanocyclopentadienide Salts.Formula: C11H23Br.

We describe the synthesis, supramol. organization, and thermal characteristics of an unprecedented family of sym. 1,2,3,4,5-pentaalkylimidazolium ([(Cn)5i.m.]+) salts equipped with halide, nitrate, or pentacyanocyclopentadienide ([Cp(CN)5]-) counterions. Salts containing relatively small anions were obtained as low-melting solids, whereas those with [Cp(CN)5]- anions were found to be ionic liquids even below room temperature A permethylated derivative, [(C1)5i.m.][Cp(CN)5], proved to be exceptional. Upon heating, the salt self-organized into a new type of organic ionic plastic crystal (OIPC) mesophase, which was termed Mhex and whose anisotropic structure featured hexagonally ordered, rotating anionic stacks positioned within a continuum composed of disordered cations. The structure of the mesophase resembles that of classical columnar liquid-crystalline phases, despite the absence of long, flexible chains. In the Mhex phase, the cations surrounding the anionic columns effectively fulfill the role of “”softening”” structural constituents, much in the same way as flexible chains. The discovery of the novel mesophase, which displays a two-dimensional, and thus intrinsically anisotropic, lattice resulting from the rotation of entire ionic assemblies around a columnar axis, represents a new paradigm in the field of OIPCs. Relatively high ionic conductivities were measured in the Mhex phase, particularly after doping with the corresponding sodium salt, Na[Cp(CN)5], demonstrating the materials’ potential for use in electrochem. applications such as sodium-ion batteries.

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Tetrahydroisoquinoline – Wikipedia,
1,2,3,4-Tetrahydroisoquinoline | C9H11N – PubChem

Most of the natural products isolated at present are heterocyclic compounds, so heterocyclic compounds occupy an important position in the research of organic chemistry. A compound: 693-67-4, is researched, SMILESS is CCCCCCCCCCCBr, Molecular C11H23BrJournal, Article, Research Support, N.I.H., Extramural, Research Support, Non-U.S. Gov’t, Research Support, U.S. Gov’t, Non-P.H.S., Biomacromolecules called Screening Libraries of Amphiphilic Janus Dendrimers Based on Natural Phenolic Acids to Discover Monodisperse Unilamellar Dendrimersomes, Author is Buzzacchera, Irene; Xiao, Qi; Han, Hong; Rahimi, Khosrow; Li, Shangda; Kostina, Nina Yu.; Toebes, B. Jelle; Wilner, Samantha E.; Moller, Martin; Rodriguez-Emmenegger, Cesar; Baumgart, Tobias; Wilson, Daniela A.; Wilson, Christopher J.; Klein, Michael L.; Percec, Virgil, the main research direction is dendrimer dendrimersome.Quality Control of 1-Bromoundecane.

Natural, including plant, and synthetic phenolic acids are employed as building blocks for the synthesis of constitutional isomeric libraries of self-assembling dendrons and dendrimers that are the simplest examples of programmed synthetic macromols. Amphiphilic Janus dendrimers are synthesized from a diversity of building blocks including natural phenolic acids. They self-assemble in water or buffer into vesicular dendrimersomes employed as biol. membrane mimics, hybrid and synthetic cells. These dendrimersomes are predominantly uni- or multilamellar vesicles with size and polydispersity that is predicted by their primary structure. However, in numerous cases, unilamellar dendrimersomes completely free of multilamellar assemblies are desirable. Here, we report the synthesis and structural anal. of a library containing 13 amphiphilic Janus dendrimers containing linear and branched alkyl chains on their hydrophobic part. They were prepared by an optimized iterative modular synthesis starting from natural phenolic acids. Monodisperse dendrimersomes were prepared by injection and giant polydisperse by hydration. Both were structurally characterized to select the mol. design principles that provide unilamellar dendrimersomes in higher yields and shorter reaction times than under previously used reaction conditions. These dendrimersomes are expected to provide important tools for synthetic cell biol., encapsulation, and delivery.

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Tetrahydroisoquinoline – Wikipedia,
1,2,3,4-Tetrahydroisoquinoline | C9H11N – PubChem

COA of Formula: C11H23Br. So far, in addition to halogen atoms, other non-metallic atoms can become part of the aromatic heterocycle, and the target ring system is still aromatic. Compound: 1-Bromoundecane, is researched, Molecular C11H23Br, CAS is 693-67-4, about Polar functional group-containing glycolipid CD1d ligands modulate cytokine-biasing responses and prevent experimental colitis.

The MHC class I-like mol. CD1d is a nonpolymorphic antigen-presenting glycoprotein, and its ligands include glycolipids, such as α-GalCer. The complexes between CD1d and ligands activate natural killer T cells by T cell receptor recognition, leading to the secretion of various cytokines (IFN-γ, IL-4, IL-17A, etc.). Herein, we report structure-activity relationship studies of α-GalCer derivatives containing various functional groups in their lipid acyl chains. Several derivatives have been identified as potent CD1d ligands displaying higher cytokine induction levels and/or unique cytokine polarization. The studies also indicated that flexibility of the lipid moiety can affect the binding affinity, the total cytokine production level and/or cytokine biasing. Based on our immunol. evaluation and investigation of physicochem. properties, we chose bisamide- and Bz amide-containing derivatives 2 and 3, and evaluated their in vivo efficacy in a DSS-induced model of ulcerative colitis. The derivative 3 that exhibits Th2- and Th17-biasing responses, demonstrated significant protective effects against intestinal inflammation in the DSS-induced model, after a single i.p. injection.

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Reference:
Tetrahydroisoquinoline – Wikipedia,
1,2,3,4-Tetrahydroisoquinoline | C9H11N – PubChem

In general, if the atoms that make up the ring contain heteroatoms, such rings become heterocycles, and organic compounds containing heterocycles are called heterocyclic compounds. An article called Even-Odd Alkyl Chain-Length Alternation Regulates Oligothiophene Crystal Structure, published in 2019-09-10, which mentions a compound: 693-67-4, Name is 1-Bromoundecane, Molecular C11H23Br, Safety of 1-Bromoundecane.

Alkyl chains of varied length and steric bulk are generally appended to π-conjugated chromophores to increase solubility These alkyl chains also regulate many aspects of the solid-state packing and, in turn, resultant electronic and optical properties of organic semiconductors, yet there remains little understanding as to how these moieties govern such characteristics. Here, we report on a series of (2,5-bis(3-alkylthiophen-2-yl) thieno[3,2-b]thiophenes) (BTTT) monomers where the single-crystal packing configurations and m.ps. alternate as a function of whether the alkyl side chains have an even or odd number of carbon atoms. When the alkyl chains contain an even number of carbon atoms, the mols. predominantly crystallize with the BTTT units of the stacked lamellae aligned in the same direction. In contrast, when the number of carbon atoms is odd, alternating lamellae are twisted with respect to their neighbors, i.e. the BTTT moieties in one layer are aligned in an orthogonal-like fashion to those in its neighboring lamellae, and the crystal m.ps. tend to be higher than those with the even-numbered alkyl chains. With d. functional theory calculations and geometric analyses, the variations in crystal structure and thus the differences in phys. properties are rationalized by an oscillating interlayer interaction that is a function of alkyl side chain atom count and length. This study characterizes an extreme case of an organic semiconductor crystal packing alternation to highlight the effect of even-odd assembly as an underutilized and under-reported handle for tuning the mol. packing of organic semiconductor materials.

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Tetrahydroisoquinoline – Wikipedia,
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The preparation of ester heterocycles mostly uses heteroatoms as nucleophilic sites, which are achieved by intramolecular substitution or addition reactions. Compound: 1-Bromoundecane( cas:693-67-4 ) is researched.Computed Properties of C11H23Br.Wang, Senlin; Wu, Hongshuai; Chen, Fanghui; Zhang, Yu; Zhang, Yuchen; Sun, Baiwang published the article 《The antitumor activity of 4,4′-bipyridinium amphiphiles》 about this compound( cas:693-67-4 ) in RSC Advances. Keywords: alveolar basal carcinoma cell bipyridinium amphiphile antitumor SAR. Let’s learn more about this compound (cas:693-67-4).

A series of 4,4′-bipyridinium amphiphiles, compounds I [n = 8-16] were synthesized and their anticancer activities were further evaluated. MTT assay showed that the cytotoxicity first increased and then decreased with the growth of carbon chains (8-16 C) at both ends of bipyridyl. Specifically, compounds with saturated carbon chains consisting of 13 carbons at both ends of bipyridyl displayed the best cell inhibitory activity with IC50 values in the low-micromolar range, which were even superior to that of cisplatin, against all the tested human cancer cells and cisplatin-resistant A549 cancer cells in vitro. In addition, compound I [n = 13] could evidently arrest the G2/M phase of the cell cycle in a dose-dependent manner. Moreover, this study demonstrates the potent performance of compound I [n = 13] in cell growth inhibition and apoptosis induction via a conceivable approach of membrane damage.

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Tetrahydroisoquinoline – Wikipedia,
1,2,3,4-Tetrahydroisoquinoline | C9H11N – PubChem

So far, in addition to halogen atoms, other non-metallic atoms can become part of the aromatic heterocycle, and the target ring system is still aromatic.Inuki, Shinsuke; Hirata, Natsumi; Kashiwabara, Emi; Kishi, Junichiro; Aiba, Toshihiko; Teratani, Toshiaki; Nakamura, Wataru; Kojima, Yoshimi; Maruyama, Toru; Kanai, Takanori; Fujimoto, Yukari researched the compound: 1-Bromoundecane( cas:693-67-4 ).Recommanded Product: 1-Bromoundecane.They published the article 《Polar functional group-containing glycolipid CD1d ligands modulate cytokine-biasing responses and prevent experimental colitis》 about this compound( cas:693-67-4 ) in Scientific Reports. Keywords: SAR glycolipid ligand polar functional group cytokine biasing colitis. We’ll tell you more about this compound (cas:693-67-4).

The MHC class I-like mol. CD1d is a nonpolymorphic antigen-presenting glycoprotein, and its ligands include glycolipids, such as α-GalCer. The complexes between CD1d and ligands activate natural killer T cells by T cell receptor recognition, leading to the secretion of various cytokines (IFN-γ, IL-4, IL-17A, etc.). Herein, we report structure-activity relationship studies of α-GalCer derivatives containing various functional groups in their lipid acyl chains. Several derivatives have been identified as potent CD1d ligands displaying higher cytokine induction levels and/or unique cytokine polarization. The studies also indicated that flexibility of the lipid moiety can affect the binding affinity, the total cytokine production level and/or cytokine biasing. Based on our immunol. evaluation and investigation of physicochem. properties, we chose bisamide- and Bz amide-containing derivatives 2 and 3, and evaluated their in vivo efficacy in a DSS-induced model of ulcerative colitis. The derivative 3 that exhibits Th2- and Th17-biasing responses, demonstrated significant protective effects against intestinal inflammation in the DSS-induced model, after a single i.p. injection.

If you want to learn more about this compound(1-Bromoundecane)Recommanded Product: 1-Bromoundecane, you may wish to communicate with the author of the article,or consult the relevant literature related to this compound(693-67-4).

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Tetrahydroisoquinoline – Wikipedia,
1,2,3,4-Tetrahydroisoquinoline | C9H11N – PubChem

Name: 1-Bromoundecane. The fused heterocycle is formed by combining a benzene ring with a single heterocycle, or two or more single heterocycles. Compound: 1-Bromoundecane, is researched, Molecular C11H23Br, CAS is 693-67-4, about Synthesis and microbiological properties of novel bis-quaternary ammonium compounds based on 4,4′-oxydiphenol spacer. Author is Vereshchagin, Anatoly N.; Frolov, Nikita A.; Konyuhova, Valeria Yu.; Hansford, Karl A.; Egorov, Mikhail P..

Novel gemini (tail-head-spacer-head-tail) bis-quaternary ammonium compounds I [n = 7, 8, 9, etc.] with a 4,4′-oxydiphenol spacer between two pyridinium heads were synthesized and compared with commonly used antiseptics such as benzalkonium chloride and chlorhexidine gluconate. Analogs bearing C8H17, C9H19 and C10H21 aliphatic groups displayed potent broad spectrum in-vitro activity against five bacterial strains and two fungi, with min. inhibitory concentrations relatively independent of the counter ion.

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Reference:
Tetrahydroisoquinoline – Wikipedia,
1,2,3,4-Tetrahydroisoquinoline | C9H11N – PubChem

The chemical properties of alicyclic heterocycles are similar to those of the corresponding chain compounds. Compound: 1-Bromoundecane, is researched, Molecular C11H23Br, CAS is 693-67-4, about Effects of Broussonetia papyrifera-fermented feed on the growth performfermentedance and muscle quality of Hu sheep, the main research direction is Broussonetia papyrifera fermentation feed muscle quality Hu sheep.COA of Formula: C11H23Br.

This study aims to determine the effect of adding different proportions of Broussonetia papyrifera (BP)-fermented feed on Hu sheep. A total of 40 male Hu sheep (weighting 20.6 ± 2.20 kg) were collected and then divided into group I, II, III, and IV, with 0%, 5%, 10%, and 15% of BP-fermented feed to based diet, resp. After the trial period of 10 and 50 d, the sheep were slaughtered by conventional methods for the chem. analyses. It showed that adding 10% fermented feed could significantly increase the growth performance of the Hu sheep. Adding the fermented feed can improve the protein level, main flavor amino acid content, and fatty acid in the muscle. Based on the headspace solid-phase microextraction and gas chromatog. – mass spectrometry methods, a total of 125, 120, 119, and 117 kinds of volatile compounds were identified in group I, II, III, and IV, among which the relative content of the acid compound, ester compound, ketone compound, and aldehydes in group II, III, and IV were higher than that in control group, resp. Addition of BP-fermented feed could significantly improve growth performance and meat quality of Hu sheep.

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Reference:
Tetrahydroisoquinoline – Wikipedia,
1,2,3,4-Tetrahydroisoquinoline | C9H11N – PubChem