Tag: M.W=200-300

Chemistry is the experimental and theoretical study of materials on their properties at both the macroscopic and microscopic levels. 143-15-7, Name is 1-Bromododecane, molecular formula is C12H25Br. In an article, author is Yalcin, Can Ozgur,once mentioned of 143-15-7, Application In Synthesis of 1-Bromododecane.

Photodynamic therapy effect of morpholinium containing silicon (IV) phthalocyanine on HCT-116 cells

In this study, we investigated the in vitro potential of axially 1-morpholiniumpropan-2-ol disubstituted silicon (IV) phthalocyanine (SiPc) which was synthesized previously, on HCT-116 cells as a photodynamic therapy (PDT) agent. The singlet oxygen and photodegradation quantum yields of SiPc were calculated using UV-vis spectrophotometer. The cytotoxic and phototoxic effects of SiPc were evaluated by 3-[4,5-dimethylthiazol-2-yl]-2,5 diphenyl tetrazolium bromide (MTT) assay. Annexin V-FITC/PI double staining kit, cell cycle kit, and mitochondria membrane potential (Delta Psi m) assay kit with JC-1 were used to indicate the cell death pathway. Caspase-3 and beta-catenin protein expressions were evaluated by western blotting. The singlet oxygen and photodegradation quantum yields of SiPc were calculated as 0.73 and 3.64 x 10(-4) in DMSO. The cell viability assays showed that IC50 value of SiPc did not reach to 100 mu M without irradiation. However, excellent phototoxicity was observed in the presence of SiPc upon light irradiation. The cells undergoing early/late apoptosis significantly increased in the presence SiPc at 5 mu M upon light irradiation. Besides, the proportion of cells at S and G2/M phase increased. Moreover, mitochondria membrane potentials significantly decreased at 1 and 5 mu M of SiPc with light irradiation. While caspase-3 expression increased, beta-catenin expression significantly decreased on HCT-116 in the presence of SiPc (p < 0.01). The results indicated that the PDT could be related to apoptosis and Wnt/beta-catenin signaling pathway. Based on our findings, SiPc exhibited a significant PDT effect on HCT-116 cells therefore, worthy of more detailed study. Interested yet? Keep reading other articles of 143-15-7, you can contact me at any time and look forward to more communication. Application In Synthesis of 1-Bromododecane.

In an article, author is Abbas, Haider, once mentioned the application of 698-00-0, Product Details of 698-00-0, Name is 2-Bromo-N,N-dimethylaniline, molecular formula is C8H10BrN, molecular weight is 200.0757, MDL number is MFCD00013522, category is bromides-buliding-blocks. Now introduce a scientific discovery about this category.

Density functional study of spectroscopy, electronic structure, linear and nonlinear optical properties of L-proline lithium chloride and L-proline lithium bromide monohydrate: For laser applications

Using density functional theory (DFT), a systematic study of structure, bonding, vibration, excitation energies and non-linear optical properties has been carried out for noncentrosymmetric L-proline lithium chloride monohydrate and L-proline lithium bromide monohydrate for the xrst time. The calculated vibrational frequencies and the S-0 -> S-1 transition energy were compared with the earlier reported experimental results and found in good agreement. HOMO-LUMO energy gap was calculated by CIS, B3LYP and CISD using 6-31G(d,p), 3-21G, 6-31++G respectively and the obtained results are compared. For the calculation of excitation energies we used time dependent DFT (TDDFT). Both the molecules show the considerably lower dipole moment in excited state in comparison with the ground state. Mulliken charge and molecular electrostatic potential were studied. The xrst order hyperpolarizability for LPLCM and LPLBM are 2.15675 x 10(-30) esu and 3.78984 x 10(-30) esu respectively which are 5 and 10 times higher than prototype urea (0.3728 x 10(-30) esu) molecule. The global chemical reactivity descriptors were also calculated. The calculated results of polarizability, xrst and second hyperpolarizability conxrm that these molecules are good non-linear optical materials and can be used for laser device fabrications. (C) 2015 The Authors. Published by Elsevier B.V. on behalf of King Saud University.

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Chemo-enzymatic cascade processes are invaluable due to their ability to rapidly construct high-value products from available feedstock chemicals in a one-pot relay manner. In an article, author is Zhang, Zhiqiang, once mentioned the application of 98475-07-1, Name is Methyl 2-(bromomethyl)-3-nitrobenzoate, molecular formula is C9H8BrNO4, molecular weight is 274.07, MDL number is MFCD04114315, category is bromides-buliding-blocks. Now introduce a scientific discovery about this category, Safety of Methyl 2-(bromomethyl)-3-nitrobenzoate.

Molecular design and experimental study on synergistic catalysts for the synthesis of cyclocarbonate from styrene oxide and CO2

Taking the reaction between styrene oxide and CO2 to yield cyclocarbonate as the target, the activities of synergistic catalysts, which are composed of Br- and alcohol compounds serving as hydrogen bond donors (HBDs), were predicted by DFT calculations and confirmed by subsequent experiments. Intramolecular reactions of the active intermediate as well as intermolecular reactions between the active intermediate and styrene oxide were possible side reactions. DFT calculation results show that the most likely by-product is phenylacetone, which is produced from the intramolecular reaction of the active intermediate. According to the calculation results, the catalytic activity of a synergistic catalyst is related to the pK(a) of the HBD, and the optimal calculated pK(a) is about 3-4 fold higher than the pK(a) of 2-bromo-1-phenylethanol, which is the protonated active intermediate of the target reaction. The combination of water and tetraethylammonium bromide (TEAB) was found to be a promising synergistic catalyst, and it can give a conversion of 50% and a yield of 43% under the conditions of 1% (mol%) catalyst loading, solvent free, 100 degrees C, 1.0 MPa and 1 h. Additionally, the TEAB can be reused. The observed catalytic activity of water is higher than expected but similar to that of styrene glycol, which is the hydration product of styrene oxide. Water is therefore an indirect catalyst and the catalytic activity is mainly contributed by the styrene glycol.

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Chemistry is traditionally divided into organic and inorganic chemistry. The former is the study of compounds containing at least one carbon-hydrogen bonds. 5003-71-4, Name is 3-Bromopropan-1-amine hydrobromide, molecular formula is C3H9Br2N, belongs to bromides-buliding-blocks compound, is a common compound. In a patnet, author is Rashid, Miah Muhammed Muktadir, once mentioned the new application about 5003-71-4, Category: bromides-buliding-blocks.

Aggregation, interaction and thermodynamic characteristics of cationic surfactant plus moxifloxacin hydrochloride mixture in aquatic solutions of mono-/di-hydroxy compounds

Herein, the interaction of the fourth-generation fluoroquinolone antibiotic drug, moxifloxacin hydrochloride (MFH), which is extensively used for the treatment of wider ranges of bacterial infections, like pneumonia, endocarditis, tuberculosis, and other complicated dermal lesions, and cetyltrimethylammonium bromide (CTAB, a cationic surfactant) has been observed by conductivity method in aqueous, alcoholic (C2H5OH, C3H7OH-2), and diol (C2H4(OH)(2), C3H6(OH)(2)) solutions. For all of the MFH + CTAB cases studied, the appearance of a critical micelle concentration (cmc) demonstrated that the micellar system is dependent on the variation of temperature and the concentration of different additives. A change in the value of cmc manifests the existence of strong interaction prevailing amongst MFH and CTAB molecules. In presence of alcohols/diols, the value of cmc for the MFH + CTAB system was found higher compared to those values obtained for the MFH + CTAB system carried out in H2O, which indicates a favourable micellization process. The values of counter-ion dissociation were also found to be dependent on temperature. The Delta G(m)(o) values were observed negative, which, again, manifests a spontaneous micellization process. The free energy of transfer and the enthalpy-entropy compensation were also calculated and discussed. [GRAPHICS]

We¡¯ll also look at important developments in the pharmaceutical industry because understanding organic chemistry is important in understanding health, medicine, 5003-71-4. The above is the message from the blog manager. Category: bromides-buliding-blocks.

A catalyst don’t appear in the overall stoichiometry of the reaction it catalyzes, but it must appear in at least one of the elementary reactions in the mechanism for the catalyzed reaction. 2746-25-0, Name is 1-(Bromomethyl)-4-methoxybenzene, molecular formula is C8H9BrO. In an article, author is Li, Qi,once mentioned of 2746-25-0, Formula: C8H9BrO.

Experimental and process simulation of hydrate-based CO2 capture from biogas

This study experimentally investigated the effects of operation conditions for the CO2 capture from biogas by clathrate hydrate formation. The experiments were tested at 3.0 MPa and 278 K in the present of 5.0 wt % tetran-butylammonium bromide (TBAB). In addition, the dissociation enthalpies of CH4/CO2 hydrates in TBAB solution was calculated for energy consumption. The hydrate process simulation with Aspen Plus was carried out at the same experimental conditions to simulate the actual hydrate-based CO2 capture (HBCC), and the energy consumption of this process was analyzed. Experimental results show that the CH4 fraction in the residual gas phase increased with the decrease of gas liquid volume ratio (R-v). R-v decreased from 35.93 to 3.61 while the concentration of CH4 in residual gas increased from 80.5 mol % to 92.76 mol %. The CH4 concentration in residual gas phase was enriched from 67.00 mol% to 97.00 mol% by two stages of HBCC. Process simulation results showed that the energy cost was 1.17 kWh/kg (CH4). According to the handing capacity of the feed gas, the energy cost was 0.390 kWh/kg (biogas), which was lower than that by chemical absorption method. After adjusting the process parameters and increasing exhaust gas energy recovery, the energy consumption was reduced to 0.357 kWh/kg (biogas). The energy consumption could be decreased to 0.204-0.223 kWh/kg (biogas) by using static hydration enhancement technology.

Interested yet? Keep reading other articles of 2746-25-0, you can contact me at any time and look forward to more communication. Formula: C8H9BrO.

Chemistry is the experimental and theoretical study of materials on their properties at both the macroscopic and microscopic levels. 2635-13-4, Name is 5-Bromobenzo[d][1,3]dioxole, molecular formula is C7H5BrO2. In an article, author is Peng, Kuang,once mentioned of 2635-13-4, Formula: C7H5BrO2.

Oxidized low-density lipoprotein accelerates the injury of endothelial cells via circ-USP36/miR-98-5p/VCAM1 axis

Circular RNAs (circRNAs) are a group of RNAs featured by a covalently closed continuous loop structure. This study aimed to uncover the function and mechanism of circ-ubiquitin specific peptidase 36 (USP36) in endothelial cells treated with oxidized low-density lipoprotein (ox-LDL). The levels of circ-USP36, microRNA-98-5p (miR-98-5p) and vascular cell adhesion molecule 1 (VCAM1) were examined by a quantitative real-time polymerase chain reaction (qRT-PCR). The viability, apoptosis and inflammation were detected by (4,5-Dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide (MTT) assay, flow cytometry and enzyme-linked immunosorbent assay (ELISA), respectively. Western blot assay was performed to detect the expression of apoptosis and proliferation-related markers and VCAM1 protein level. The targets of circ-USP36 and miR-98-5p were searched using starBase website, and dual-luciferase reporter assay and RNA immunoprecipitation (RIP) assay were applied to validate the above predictions. Ox-LDL exposure induced the upregulation of circ-USP36 in HUVEC cells. Circ-USP36 accelerated ox-LDL-induced apoptosis, inflammatory and viability inhibition of HUVEC cells. MiR-98-5p was a direct downstream gene of circ-USP36. Circ-USP36 promoted the injury of ox-LDL-induced HUVEC cells through targeting miR-98-5p. VCAM1 could bind to miR-98-5p, and the protective effects of miR-98-5p accumulation on ox-LDL-induced HUVEC cells were reversed by the transfection of VCAM1. VCAM1 was regulated by circ-USP36/miR-98-5p signaling in HUVEC cells. Ox-LDL promoted the apoptosis and inflammation but suppressed the viability of HUVEC cells through upregulating circ-USP36, thus elevating the expression of VCAM1 via miR-98-5p.

If you are hungry for even more, make sure to check my other article about 2635-13-4, Formula: C7H5BrO2.

Chemistry is traditionally divided into organic and inorganic chemistry. The former is the study of compounds containing at least one carbon-hydrogen bonds. 577-19-5, Name is 1-Bromo-2-nitrobenzene, molecular formula is C6H4BrNO2, belongs to bromides-buliding-blocks compound, is a common compound. In a patnet, author is Abid, Muhammad, once mentioned the new application about 577-19-5, Application In Synthesis of 1-Bromo-2-nitrobenzene.

Thermodynamic Performance Evaluation of a Solar Parabolic Dish Assisted Multigeneration System

The concentration ratio of the parabolic dish solar collector (PDSC) is considered to be one of the highest among the concentrated solar power technologies (CSPs); therefore, such system is capable of generating more heat rate. The present paper focuses on the integration of the PDSC with the combined cycle (gas cycle as the toping cycle and steam cycle as the bottoming cycle) along with the utilization of waste heat from the power cycle to drive the single effect lithium bromide/water absorption cycle. Molten salt is used as a heat transfer fluid in the solar collector. The engineering equation solver (EES) is employed for the mathematical modeling and simulation of the solar integrated system. The various operating parameters (beam radiation, inlet and ambient temperatures of heat transfer fluid, mass flow rate of heat transfer fluid, evaporator temperature, and generator temperature) are varied to analyze their influence on the performance parameters (power output, overall energetic and exergetic efficiencies, outlet temperature of the receiver, and as coefficient of performance (COP) and exergy efficiencies) of the integrated system. The results show that the overall energy and exergy efficiencies are observed to be 39.9% and 42.95% at ambient temperature of 27 degrees C and solar irradiance of 1000 W/m(2). The outlet temperature of the receiver is noticed to decrease from 1008 K to 528 K for an increase in the mass flow rate from 0.01 to 0.05 kg/s. The efficiency rate of the power plant is 38%, whereas COP of single effect absorption system is 0.84, and it will decrease from 0.87 to 0.79. However, the evaporator load is decreased to approximately 9.7% by increasing the generator temperature from 47 degrees C to 107 degrees C.

We¡¯ll also look at important developments in the pharmaceutical industry because understanding organic chemistry is important in understanding health, medicine, 577-19-5. The above is the message from the blog manager. Application In Synthesis of 1-Bromo-2-nitrobenzene.

Chemistry, like all the natural sciences, Safety of 3-Bromo-2-methylbenzoic acid, begins with the direct observation of nature¡ª in this case, of matter.76006-33-2, Name is 3-Bromo-2-methylbenzoic acid, SMILES is O=C(O)C1=CC=CC(Br)=C1C, belongs to bromides-buliding-blocks compound. In a document, author is Sreekantan, Srimala, introduce the new discover.

Biocompatibility and Cytotoxicity Study of Polydimethylsiloxane (PDMS) and Palm Oil Fuel Ash (POFA) Sustainable Super-Hydrophobic Coating for Biomedical Applications

A sustainable super-hydrophobic coating composed of silica from palm oil fuel ash (POFA) and polydimethylsiloxane (PDMS) was synthesised using isopropanol as a solvent and coated on a glass substrate. FESEM and AFM analyses were conducted to study the surface morphology of the coating. The super-hydrophobicity of the material was validated through goniometry, which showed a water contact angle of 151 degrees. Cytotoxicity studies were conducted by assessing the cell viability and cell morphology of mouse fibroblast cell line (L929) and hamster lung fibroblast cell line (V79) via tetrazolium salt 3-(4-dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide (MTT) assay and microscopic methods, respectively. The clonogenic assay was performed on cell line V79 and the cell proliferation assay was performed on cell line L929. Both results validate that the toxicity of PDMS: SS coatings is dependent on the concentration of the super-hydrophobic coating. The results also indicate that concentrations above 12.5 mg/mL invariably leads to cell toxicity. These results conclusively support the possible utilisation of the synthesised super-hydrophobic coating for biomedical applications.

Note that a catalyst decreases the activation energy for both the forward and the reverse reactions and hence accelerates both the forward and the reverse reactions. you can also check out more blogs about 76006-33-2. Safety of 3-Bromo-2-methylbenzoic acid.

Chemistry, like all the natural sciences, begins with the direct observation of nature¡ª in this case, of matter.393-36-2, Name is 4-Bromo-3-(trifluoromethyl)aniline, SMILES is C1=C(N)C=CC(=C1C(F)(F)F)Br, belongs to bromides-buliding-blocks compound. In a document, author is Qi, Shihan, introduce the new discover, COA of Formula: C7H5BrF3N.

Phosphonium Bromides Regulating Solid Electrolyte Interphase Components and Optimizing Solvation Sheath Structure for Suppressing Lithium Dendrite Growth

Electrolyte additives play important roles in suppressing lithium dendrite growth and improving the electrochemical performance of long-life lithium metal batteries (LMBs), however, it is still challenging to design individual additive for adjusting the solid electrolyte interphase (SEI) components and changing lithium ion solvation sheath in the electrolyte at the same time for optimizing electrochemical performance. Herein, alkyl-triphenyl-phosphonium bromides (alkyl-TPPB) are designed as the electrolyte additive to enhance the stability of metallic Li anode under the guidance of multi-factor principle for electrolyte additive molecule design (EDMD). Both alkyl-TPP cations and Br- anions produce positive influences on suppressing Li dendrite growth and stabilizing the unstable interphase between metallic Li anode/electrolyte. As expected, the optimized solvation sheath structure, and the stable SEI suppress Li dendrite growth. As a result, the Li||Li4Ti5O12 cell reveals a long stable life over 1000 cycles with high Coulombic efficiency (99.9%). This work provides an insight on stabilizing SEI and optimizing solvation sheath structure with novel approach to develop long-term stability and safety LMBs.

The proportionality constant is the rate constant for the particular unimolecular reaction. the reaction rate is directly proportional to the concentration of the reactant. I hope my blog about 393-36-2 is helpful to your research. COA of Formula: C7H5BrF3N.

One of the major reasons for studying chemical kinetics is to use measurements of the macroscopic properties of a system, such as the rate of change in the concentration of reactants or products with time. 3296-90-0, Name is Dibromoneopentyl Glycol, formurla is C5H10Br2O2. In a document, author is Ye, Liwei, introducing its new discovery. COA of Formula: C5H10Br2O2.

Synthesis of conjugated polymers using aryl-bromides via Cu-catalyzed direct arylation polymerization (Cu-DArP)

Initial reports on the novel Cu-catalyzed direct arylation polymerization (Cu-DArP) stated that it required the use of aryl iodides. Herein, we report the first Cu-DArP methodology using more accessible and practical aryl-bromides with catalytic Cu, leading to a range of conjugated polymers with good molecular weights (up to 17.3 kDa) and an undetectable level of defects.

I hope this article can help some friends in scientific research. I am very proud of our efforts over the past few months and hope to 3296-90-0 help many people in the next few years. COA of Formula: C5H10Br2O2.