Month: November 2022

No Annealing Synthesis of Ordered Intermetallic PdCu Nanocatalysts for Boosting Formic Acid Oxidation was written by Li, Xiang;Liu, Yaming;Zhang, Jun-Jun;Yan, Bo;Jin, Changqing;Dou, Jingjing;Li, Mengyang;Feng, Xiaohua;Liu, Ge. And the article was included in Chemistry of Materials in 2022.Quality Control of Sodium tetrachloropalladate(II) The following contents are mentioned in the article:

Owing to their high catalytic efficiency and selectivity, the ordered intermetallic Pd-based nanocatalysts have greater promise than disordered nanocatalysts for formic acid oxidation reactions (FAOR). Traditionally, intermetallic nanoparticles are synthesized via the annealing of disordered alloy in a high temperature and reducing atm. However, this method inevitably adds complexity and increases cost to practical application as well as leads to the destruction of nanostructures and the deactivation of nanocatalysts. Herein, monodisperse ordered intermetallic PdCu nanocatalysts are obtained through liquid phase reduction reaction in one pot without heat treatment. The results indicate that the ethylene glycol and KBr not only affect the solubilities of Pd and Cu precursors, but also facilitate the formation of the ordered intermetallic PdCu nanostructures with well-defined morphol. Compared to disordered PdCu, com. Pd/C, and com. Pd black nanocatalysts, the ordered intermetallic PdCu nanocatalysts display enhanced activity and durability for FAOR. The mass and specific activities are 665 mA mg_Pd^-1 and 1.88 mA cm^-2, which are 1.45, 2.67, and 4.16 and 1.21, 1.53, and 1.74 times disordered PdCu, com. Pd/C, and com. Pd black nanocatalysts, resp. This work comes up with one novel approach for the preparation of ordered intermetallic PdCu nanocrystals without heat treatment. This study involved multiple reactions and reactants, such as Sodium tetrachloropalladate(II) (cas: 13820-53-6Quality Control of Sodium tetrachloropalladate(II)).

Sodium tetrachloropalladate(II) (cas: 13820-53-6) belongs to organic chlorides. An organic chloride is an organic compound containing at least one covalently bonded atom of chlorine. Their wide structural variety and divergent chemical properties lead to a broad range of names and applications. Alkanes and aryl alkanes may be chlorinated under free radical conditions, with UV light. However, the extent of chlorination is difficult to control.Quality Control of Sodium tetrachloropalladate(II)

Referemce:
Chloride – Wikipedia,
Chlorides – an overview | ScienceDirect Topics

Utilization of methyltrioctylammonium chloride as new ionic liquid in pretreatment of sugarcane bagasse for production of cellulase by novel thermophilic bacteria was written by Ejaz, Uroosa;Muhammad, Shoaib;Hashmi, Imran Ali;Ali, Firdous Imran;Sohail, Muhammad. And the article was included in Journal of Biotechnology in 2020.SDS of cas: 5137-55-3 The following contents are mentioned in the article:

Fermentation of carbohydrates present in lignocellulosic (LC) biomass is facilitated by lignin removal, which is usually achieved by adopting various pretreatment methods to provide the enzymes proper access to their resp. substrates. Pretreatment using ionic liquid (IL) is relatively recent advancement and considered as mild and green process. ILs can dissolve extensive quantities of biomass and depolymerize the cellulose. In this context, an abundantly available LC biomass, sugarcane bagasse (SB), was pretreated using alkali or with an IL, methyltrioctylammonium chloride, and was used for cellulase production from thermophilic bacteria. In all, 26 indigenously isolated thermophilic bacterial strains were quant. screened for cellulase production 16S rDNA sequences of the promising isolates UE10 and UE27 revealed relatedness with Brevibacillus borstelensis, while the strain UE1 belonged to Aneurinibacillus thermoaerophilus. Cellulase production was compared by utilizing alkali pretreated and IL pretreated SB and the later was found more appropriate. UE1, UE10 and UE27 yielded 22.2, 22.18 and 33.3 IU mL^-1 of endoglucanase, resp., by fermenting IL pretreated SB. The changes in SB structure after pretreatment were evaluated by SEM. This study demonstrated the potential of novel thermophilic bacterial strains to utilize IL pretreated SB for production of industrially important enzyme, cellulase. This study involved multiple reactions and reactants, such as N-Methyl-N,N-dioctyloctan-1-aminium chloride (cas: 5137-55-3SDS of cas: 5137-55-3).

N-Methyl-N,N-dioctyloctan-1-aminium chloride (cas: 5137-55-3) belongs to organic chlorides. An organic chloride is an organic compound containing at least one covalently bonded atom of chlorine. Their wide structural variety and divergent chemical properties lead to a broad range of names and applications. Organochlorine compounds are lipophylic, meaning they are more soluble in fat than in water. This gives them a high tenancy to accumulate in the food chain (biomagnification).SDS of cas: 5137-55-3

Referemce:
Chloride – Wikipedia,
Chlorides – an overview | ScienceDirect Topics

Mixed micellization behavior of benzyldimethylhexadecylammonium chloride with gemini surfactants and their applications in the synthesis of silver nanoparticles was written by Wagay, Tariq Ahmad;Shergujri, Mohd. Aurif;Askari, Hassan. And the article was included in Journal of Dispersion Science and Technology in 2021.Computed Properties of C25H46ClN The following contents are mentioned in the article:

Aggregation and adsorption properties of benzyldimethylhexadecylammonium chloride (BDHAC) with three cationic alkanediyl-1,s-bis(tetradecyldimethyl-ammonium bromide) gemini surfactants, viz. butanediyl-1,4-bis(tetradecyldimethylammonium bromide), pentanediyl-1,5-bis(tetradecyldimethylammonium bromide) and hexanediyl-1,6-bis(tetradecyldimethylammonium bromide) resp. referred to as 14-4-14, 14-5-14 and 14-6-14 (in general 14-s-14, where s = 4, 5, 6) have been studied by tensiometric, conductometric, fluorimetric and dynamic light scattering exptl. methods at 298.15 K. The studies were conducted at various compositions of the mixed systems ranging between 0 and 1. The parameters determined include different physicochem. and interaction parameters. The neg. values of interaction parameters obtained for mixed micelle formation point out the attractive interaction among the components and lead to non-ideality which has been theor. treated by Clint′s and Rubingh′s models. The BDHAC + 14-s-14 mixtures in different mole fractions were used in the synthesis of very stable silver nanoparticles (Ag NPs) in aqueous media, which were characterized by UV-visible spectroscopy. Dynamic light scattering measurements revealed that the size of micelles as well as Ag NPs increases with the increase in mole fraction of BDHAC in the mixtures and the size of Ag NPs can be very much controlled by using mixtures of surfactants. This study involved multiple reactions and reactants, such as N-Benzyl-N,N-dimethylhexadecan-1-aminium chloride (cas: 122-18-9Computed Properties of C25H46ClN).

N-Benzyl-N,N-dimethylhexadecan-1-aminium chloride (cas: 122-18-9) belongs to organic chlorides. Organic chlorides can cause corrosion in pipelines, valves and condensers, and cause catalyst poisoning. The hydrocarbon processing industry (HPI) and others are affected by damage caused by these substances. Alkyl chlorides readily react with amines to give substituted amines. Alkyl chlorides are substituted by softer halides such as the iodide in the Finkelstein reaction.Computed Properties of C25H46ClN

Referemce:
Chloride – Wikipedia,
Chlorides – an overview | ScienceDirect Topics

One-pot biosynthesis of rGO-supported PdAu bimetallic nanoparticles as an efficient catalyst for Suzuki-Miyaura coupling reactions was written by Liu, Xiang;Guo, Dongxue;Zhao, Xiaohua;Yin, Weifen. And the article was included in Journal of the Iranian Chemical Society in 2022.Application of 13820-53-6 The following contents are mentioned in the article:

PdAu bimetallic nanoparticles synthesized by bacterial cells (Bio-PdAu NPs) are receiving more and more research interest. However, its practical application is extremely limited because of the inefficient PdAu immobilization, which is critical regarding both security and process costs. This work reported one-pot biosynthesis of reduced graphene oxide (rGO)-supported PdAu NPs (Bio-PdAu@rGO) with the Shewanella oneidensis MR-1 at ambient temperature Shewanella oneidensis MR-1 can efficiently reduce GO to rGO and produce face-centered-cubic (fcc) structural PdAu alloy NPs that uniformly embedded on bacterium and rGO. Interestingly, in situ bio-synthesized rGO significantly increased the recovery rate of PdAu NPs from 35.6% to 93.5%. Bio-PdAu@rGO displayed an efficient catalytic activity for Suzuki-Miyaura cross-coupling reactions in contrast to that as-synthesized monometallic bio-Pd NPs, with Bio-PdAu NPs significantly outperforming both. Modest to excellent conversion with 82-100% was obtained when aryl iodide and aryl bromide were used to evaluate the catalytic performance. Moreover, the catalysts had strong universality and tolerate a wide range of substituents. In summary, the small size and uniform size distribution of PdAu NPs, combined with the strong electrostatic attraction and elec. conductivity of rGO, can make Bio-PdAu@rGO an active and stable catalyst in the Suzuki-Miyaura coupling reaction. This study involved multiple reactions and reactants, such as Sodium tetrachloropalladate(II) (cas: 13820-53-6Application of 13820-53-6).

Sodium tetrachloropalladate(II) (cas: 13820-53-6) belongs to organic chlorides. An organic chloride is an organic compound containing at least one covalently bonded atom of chlorine. Their wide structural variety and divergent chemical properties lead to a broad range of names and applications.While alkyl bromides and iodides are more reactive, alkyl chlorides tend to be less expensive and more readily available. Alkyl chlorides readily undergo attack by nucleophiles.Application of 13820-53-6

Referemce:
Chloride – Wikipedia,
Chlorides – an overview | ScienceDirect Topics

Highly dispersed and stabilized Pd species on H₂ pre-treated Al₂O₃ for anthraquinone hydrogenation and H₂O₂ production was written by Liang, Jingyue;Wang, Fuying;Li, Wei;Zhang, Jinli;Guo, Cui-li. And the article was included in Molecular Catalysis in 2022.COA of Formula: Cl4Na2Pd The following contents are mentioned in the article:

Anthraquinone hydrogenation is the core reaction in H₂O₂ production process. In this work, γ-Al₂O₃ samples with different H₂ treatment temperatures (denoted as R-Al-T) were prepared to be the catalytic supports, and a series of Pd/R-Al-T catalysts were obtained by a simple impregnation method. Among the catalysts, Pd/R-Al-500 exhibits the best catalytic performance for anthraquinone hydrogenation of 10.63 g·L^-1 hydrogenation efficiency and 885.83 gH₂O₂·gPd^-1·h^-1 H₂O₂ productivity, which increases by 37.7% compared with Pd/γ-Al. The stability of Pd/R-Al-500 is also significantly higher than that of Pd/γ-Al. Characterization results show the pre-treatment can construct more coordinatively unsaturated pentacoordinate Al³⁺ (denoted as Al³⁺_penta) and forms more Pd-O-Al structures, which improve the Pd dispersion and synergistic effect between Pd⁰ and Pd²⁺, so as to improve the catalytic activity. Al³⁺_penta sites also enhance the anchoring effect on Pd species and lessen the Pd leaching and agglomeration, which lead to the high stability of Pd/R-Al-500 catalyst. This work provides a simple strategy to disperse and stabilize active Pd species on γ-Al₂O₃ for anthraquinone hydrogenation. This study involved multiple reactions and reactants, such as Sodium tetrachloropalladate(II) (cas: 13820-53-6COA of Formula: Cl4Na2Pd).

Sodium tetrachloropalladate(II) (cas: 13820-53-6) belongs to organic chlorides. Organochlorines stimulate the central nervous system and cause convulsions, tremor, nausea, and mental confusion. Examples are dichlorodiphenyltrichloroethane (DDT), chlordane, lindane, endosulfan, and dieldrin. The haloform reaction, using chlorine and sodium hydroxide, is also able to generate alkyl halides from methyl ketones, and related compounds. Chloroform was formerly produced thus.COA of Formula: Cl4Na2Pd

Referemce:
Chloride – Wikipedia,
Chlorides – an overview | ScienceDirect Topics

Simultaneous determination of lobetyolin and atractylenolide III in Codonopsis Radix by dispersive liquid-liquid microextraction based on hydrophobic deep eutectic solvent was written by Bai, Yun-e;Zhang, Xiao-ting;Zhang, Rui-ming;Hou, Jing;Niu, Yuan-jing;Hu, Shuang;Gao, Jian-ping. And the article was included in Microchemical Journal in 2021.Product Details of 5137-55-3 The following contents are mentioned in the article:

In order to achieve the determination and quantification of trace lobetyolin and atractylenolide III in Codonopsis Radix, a procedure of dispersive liquid-liquid microextraction utilizing a hydrophobic deep eutectic solvent as the extractant combined with high performance liquid chromatog. was developed. The primary variables affecting the extraction process, including the type, ratio and volume of extractant, pH and salt concentration in sample phase, type and volume of dispersant, extraction time, centrifugal speed and time were optimized. In this experiment, the deep eutectic solvent prepared by methyltrioctylammonium chloride and n-butanol was the best extractant. The both target analytes showed good linearity (r² > 0.990) in their resp. linear ranges (0.01-2.5μg/mL and 0.009-2.0μg/mL). And the limits of detection and quantification were 6 × 10^-4 and 2 × 10^-3 μg/mL for lobetyolin, 3 × 10^-3 and 9 × 10^-3 μg/mL for atractylenolide III. The enrichment factors were 37 for lobetyolin and 154 for atractylenolide III resp. The relative standard deviations of precision were 1.2-6.4% and the spiked recovery values were in the range of 87.6-114.7% with the relative standard deviations of 1.5-4.7%. It is successful to objectively and clearly distinguish the three origins of Codonopsis Radix by comparing the contents of the both analytes with proposed method. This study involved multiple reactions and reactants, such as N-Methyl-N,N-dioctyloctan-1-aminium chloride (cas: 5137-55-3Product Details of 5137-55-3).

N-Methyl-N,N-dioctyloctan-1-aminium chloride (cas: 5137-55-3) belongs to organic chlorides. Organic chlorides can be used in production of: PVC, pesticides, chloromethane, teflon, insulators. Alkyl chlorides readily react with amines to give substituted amines. Alkyl chlorides are substituted by softer halides such as the iodide in the Finkelstein reaction.Product Details of 5137-55-3

Referemce:
Chloride – Wikipedia,
Chlorides – an overview | ScienceDirect Topics

Alcoholic solvent effect on the anion-dependent luminescence of Eu(III) complex in the presence of tetramethylammonium cation was written by Li, Ziying;Nakamura, Kazuki;Kobayashi, Norihisa. And the article was included in Nippon Gazo Gakkaishi in 2022.Related Products of 75-57-0 The following contents are mentioned in the article:

We have reported drastic enhancement of photoluminescence of chiral Eu(III) complex (Eu(D-facam)₃) in 1-butanol by cooperating effect of tetramethylammonium cation with specific counter anions of chloride and acetate. In this study, based on such unusual luminescence improvement, solvent effect of this luminescence enhancement was further investigated by comparing a series of primary alcs. with straight alkyl chains (carbon number, n : 1~6) including methanol, ethanol, 1-propanol, 1-butanol, 1-pentanol and 1-hexanol. In the case of both anions, notable alc. solvent effect on luminescence properties of Eu(D-facam)₃ were observed upon coexistence with tetramethylammonium citation. Interestingly, in 1-pentanol, Eu(D-facam)₃ achieved a superior luminescence enhancement above 500 times and induced circular polarized luminescence (g_lum = -0.69) by the interaction with tetramethylammonium acetate. On the contrary, the luminescence of Eu(D-facam)₃ decreased by addition of tetramethylammonium acetate the in the methanol. The unusual optical behavior would be attributed to structural change of Eu(D-facam)₃ induced by the interaction of tetramethylammonium and specific anions in alc. solution The strength of their interactions would be affected by polarity of the alc. solvents, leading to huge dependence of the luminescence intensity on the alc. species. This study involved multiple reactions and reactants, such as Tetramethylammonium chloride (cas: 75-57-0Related Products of 75-57-0).

Tetramethylammonium chloride (cas: 75-57-0) belongs to organic chlorides. An organic chloride is an organic compound containing at least one covalently bonded atom of chlorine. Their wide structural variety and divergent chemical properties lead to a broad range of names and applications. Alkanes and aryl alkanes may be chlorinated under free radical conditions, with UV light. However, the extent of chlorination is difficult to control.Related Products of 75-57-0

Referemce:
Chloride – Wikipedia,
Chlorides – an overview | ScienceDirect Topics

Synthesis of ultrasmall single-crystal gold-silver alloy nanotriangles and their application in photothermal therapy was written by Maturi, Mirko;Locatelli, Erica;Sambri, Letizia;Tortorella, Silvia;Sturm, Saso;Kostevsek, Nina;Franchini, Mauro Comes. And the article was included in Nanomaterials in 2021.Recommanded Product: N-Benzyl-N,N-dimethylhexadecan-1-aminium chloride The following contents are mentioned in the article:

Photothermal therapy has always been a very attractive anti-cancer strategy, drawing a lot of attention thanks to its excellent performance as a non-invasive and pretty safe technique. Lately, nanostructures have become the main characters of the play of cancer therapy due to their ability to absorb near-IR radiation and efficient light-to-heat conversion. Here we present the synthesis of polyethylene glycol (PEG)-stabilized hybrid ultrasmall (<20 nm) gold-silver nanotriangles (AuAgNTrs) and their application in photothermal therapy. The obtained AuAgNTrs were deeply investigated using high-resolution transmission electron microscopy (HR-TEM). The cell viability assay was performed on U-87 glioblastoma multiforme cell model. Excellent photothermal performance of AuAgNTrs upon irradiation with NIR laser was demonstrated in suspension and in vitro, with >80% cell viability decrease already after 10 min laser irradiation with a laser power P = 3W/cm² that was proved to be harmless to the control cells. Moreover, a previous cell viability test had shown that the nanoparticles themselves were reasonably biocompatible: without irradiation cell viability remained high. Herein, we show that our hybrid AuAgNTrs exhibit very exciting potential as nanostructures for hyperthermia cancer therapy, mostly due to their easy synthesis protocol, excellent cell compatibility and promising photothermal features. This study involved multiple reactions and reactants, such as N-Benzyl-N,N-dimethylhexadecan-1-aminium chloride (cas: 122-18-9Recommanded Product: N-Benzyl-N,N-dimethylhexadecan-1-aminium chloride).

N-Benzyl-N,N-dimethylhexadecan-1-aminium chloride (cas: 122-18-9) belongs to organic chlorides. An organic chloride is an organic compound containing at least one covalently bonded atom of chlorine. Their wide structural variety and divergent chemical properties lead to a broad range of names and applications.While alkyl bromides and iodides are more reactive, alkyl chlorides tend to be less expensive and more readily available. Alkyl chlorides readily undergo attack by nucleophiles.Recommanded Product: N-Benzyl-N,N-dimethylhexadecan-1-aminium chloride

Referemce:
Chloride – Wikipedia,
Chlorides – an overview | ScienceDirect Topics

Design and synthesis of α-naphthoflavone chimera derivatives able to eliminate cytochrome P450 (CYP)1B1-mediated drug resistance via targeted CYP1B1 degradation was written by Zhou, Li;Chen, Wenming;Cao, Chenyang;Shi, Yonghui;Ye, Wenchong;Hu, Jiliang;Wang, Ling Li;Zhou, Wen. And the article was included in European Journal of Medicinal Chemistry in 2020.Recommanded Product: 6294-17-3 The following contents are mentioned in the article:

Extrahepatic cytochrome P 450 1B1 (CYP1B1), which is highly expressed in various tumors, is an attractive and potential target for cancer prevention, therapy, and reversal of drug resistance. CYP1B1 inhibition is the current predominant therapeutic paradigm to treating CYP1B1-mediated malignancy, but therapeutic effect has little success. Herein, we reported CYP1B1 degradation in place of CYP1B1 inhibition for reversing drug resistance toward docetaxel in CYP1B1-overexpressing prostate cancer cell line DU145 using a PROTAC strategy. Replacing chlorine atom of a CYP1B1 selective inhibitor we found previously with ethynyl, we got the resulting α-naphthoflavone derivative 5 which kept strong inhibition against CYP1B1 (IC₅₀ = 0.4±0.2 nM) and high selectivity. Coupling of 5 with thalidomide derivatives of varying chain lengths afforded conjugates 6A-6D via click reaction. In vitro cell-based assay indicated that 6C was more effective in eliminating drug resistance of CYP1B1-overexpressed DU145 cells compared with other analogs. Western blotting anal. showed CYP1B1 degradation was one main reason for the reversal of drug resistance to docetaxel and the effect was obtained in a concentration-dependent manner. This work is the first attempt to overcome CYP1B1-mediated drug resistance via CYP1B1 degradation instead of CYP1B1 inhibition, which could provide a new direction toward eliminating drug resistance. This study involved multiple reactions and reactants, such as 1-Bromo-6-chlorohexane (cas: 6294-17-3Recommanded Product: 6294-17-3).

1-Bromo-6-chlorohexane (cas: 6294-17-3) belongs to organic chlorides. Chlorination modifies the physical properties of hydrocarbons in several ways. These compounds are typically denser than water due to the higher atomic weight of chlorine versus hydrogen. The haloform reaction, using chlorine and sodium hydroxide, is also able to generate alkyl halides from methyl ketones, and related compounds. Chloroform was formerly produced thus.Recommanded Product: 6294-17-3

Referemce:
Chloride – Wikipedia,
Chlorides – an overview | ScienceDirect Topics

Evaluation of mixed micellar interactions of C_nBCl and SDBS mixtures using dissociated Margules model and influence of different salts was written by Sood, Ashwani Kumar;Sethi, Omish;Aggarwal, Meenu. And the article was included in Journal of Surfactants and Detergents.Electric Literature of C25H46ClN The following contents are mentioned in the article:

The conductivity measurement has been used to determine the first and second CMC′s (CMC₁ and CMC₂) of alkyldimethylbenzylammonium chloride (C_nBCl; n = 12, 14 and 16) as well as gemini surfactant trimethylene-1,2-bis-(dodecyldimethylammonium bromide) (12-2-12) with sodium dodecylbenzenesulfonate (SDBS) in aqueous solutions using Rubing′s the regular theory approximation as well as the dissociated Margules Model. The use of Margules model allows us to calculate activity coefficients of the constituents and hence provides better values of micellar parameters for asym. mixed systems as compared to the regular solution theory. The CMC1 values for C_nBCl/SDBS mixtures were seen to be lower than those predicted from their ideal mixtures suggesting synergistic interactions although the synergism increases with chain length (n) of the cationic surfactant. Both CMC₁ and CMC₂ experience a decrease with rising values of n. The addition of salts including NaCl, KCl, NaBr, Na₃PO₄, and Na₂SO₄ in mixtures of C16BCl and SDBS suggests that salt counterions have a considerable impact on CMC1 when either surfactant is in excess. Zeta potential (ζ) measurements provide more evidence in favor of these observations. The thermodn. features of micellization have also been scrutinized using isothermal titration calorimetry (ITC). This study involved multiple reactions and reactants, such as N-Benzyl-N,N-dimethylhexadecan-1-aminium chloride (cas: 122-18-9Electric Literature of C25H46ClN).

N-Benzyl-N,N-dimethylhexadecan-1-aminium chloride (cas: 122-18-9) belongs to organic chlorides. Organochlorines stimulate the central nervous system and cause convulsions, tremor, nausea, and mental confusion. Examples are dichlorodiphenyltrichloroethane (DDT), chlordane, lindane, endosulfan, and dieldrin. Alkyl chlorides readily react with amines to give substituted amines. Alkyl chlorides are substituted by softer halides such as the iodide in the Finkelstein reaction.Electric Literature of C25H46ClN

Referemce:
Chloride – Wikipedia,
Chlorides – an overview | ScienceDirect Topics