Month: April 2021

Application of 76801-93-9, Catalysts allow a reaction to proceed via a pathway that has a lower activation energy than the uncatalyzed reaction. 76801-93-9, Name is 5-Amino-N1,N3-bis(2,3-dihydroxypropyl)-2,4,6-triiodoisophthalamide, SMILES is O=C(NCC(O)CO)C1=C(I)C(N)=C(I)C(C(NCC(O)CO)=O)=C1I, belongs to iodides-buliding-blocks compound. In a article, author is Wu, XG, introduce new discover of the category.

Anodic voltammetric behavior of iodide at a chitosan-modified glassy carbon electrode

A novel anodic stripping voltammetry for the determination of iodide with a chitosan-modified glassy carbon electrode (CMGCE) has been described. The CMGCEs were able tot preconcentrate: iodine due to the oxidation of iodide at + 0.7 V (vs. SCE) in pH = 3.80 sulfuric acid, after equilibration at + 0.1 V for 25 s, an anodic scan was performed from + 0.1 to + 1.2 V at 100 mV/s, and a well-defined peak could be obtained at about + 0.85 V. The peak current also varied linearly with the concentration of iodide over the range 0.1 similar to 0.75 mug/mL, and the detection limit was 0.05 mug/mL. The conditions for determining iodide and the possible electrode reaction processes were discussed. The method has been applied to the detection of iodide in cydiodine tablets with satisfactory results.

Application of 76801-93-9, Each elementary reaction can be described in terms of its molecularity, the number of molecules that collide in that step. The slowest step in a reaction mechanism is the rate-determining step.you can also check out more blogs about 76801-93-9.

Chemistry is the experimental and theoretical study of materials on their properties at both the macroscopic and microscopic levels. 76801-93-9, Name is 5-Amino-N1,N3-bis(2,3-dihydroxypropyl)-2,4,6-triiodoisophthalamide, molecular formula is C14H18I3N3O6. In an article, author is Rillema, JA,once mentioned of 76801-93-9, SDS of cas: 76801-93-9.

Pendrin transporter carries out iodide uptake into MCF-7 human mammary cancer cells

Previous studies have shown that iodide is actively taken up into mammary alveolar epithelial cells and secreted into milk. In the present studies we demonstrate that I-125 also accumulates in MCF-7 cells against a concentration gradient; distribution ratios of greater than 30 were achieved. Iodide uptake into MCF-7 cells is transient, with peak accumulations occurring in about 5 min. The iodide is rapidly metabolized, probably to iodine, and it then exits the cells. The iodide transporter identified in MCF-7 cells is pendrin. DIDS, a nonspecific inhibitor of anion exchange, inhibits iodide uptake. Iodide uptake is impaired at reduced temperature, but is not dependent on sodium. Inhibitors of the sodium-iodide symporter (NIS) as well as ouabain did not affect the extent of iodide uptake. The pendrin transporter but not NIS was identified via western blotting techniques. Pendrin appears to be the primary iodide transporter in the MCF-7 cell line stocks that were employed for these studies.

If you¡¯re interested in learning more about 76801-93-9. The above is the message from the blog manager. SDS of cas: 76801-93-9.

Synthetic Route of 60166-93-0, Enzymes are biological catalysts that produce large increases in reaction rates and tend to be specific for certain reactants and products. 60166-93-0, Name is Iopamidol, SMILES is O=C(C1=C(I)C(NC([C@@H](O)C)=O)=C(I)C(C(NC(CO)CO)=O)=C1I)NC(CO)CO, belongs to iodides-buliding-blocks compound. In a article, author is Ferdani, Dominic W., introduce new discover of the category.

Partial cation substitution reduces iodide ion transport in lead iodide perovskite solar cells

Halide perovskite solar cells containing a mixture of A-site cations are attracting considerable interest due to their improved stability and high power conversion efficiencies. Ionic transport is known to be an important predictor of perovskite behaviour, but the impact of partial A-site substitution on iodide ion diffusion is poorly understood. Here, we combine ab initio modelling, impedance spectroscopy and muon spin relaxation to investigate the effect on iodide ion transport of incorporating a low concentration of each of seven different sized cations (from small rubidium to large guanidinium) into methylammonium lead iodide. Experimental and simulation results are in good agreement, indicating that these cation substitutions increase the activation energy for iodide ion diffusion. We show for the first time that partial guanidinium substitution into methylammonium lead iodide strongly suppresses iodide ion transport. The insights gained from this multi-technique study are important for the future design of mixed-cation perovskite solar cells with enhanced performance.

Synthetic Route of 60166-93-0, Each elementary reaction can be described in terms of its molecularity, the number of molecules that collide in that step. The slowest step in a reaction mechanism is the rate-determining step.you can also check out more blogs about 60166-93-0.

Electric Literature of 144-48-9, Enzymes are biological catalysts that produce large increases in reaction rates and tend to be specific for certain reactants and products. 144-48-9, Name is 2-Iodoacetamide, SMILES is NC(=O)CI, belongs to iodides-buliding-blocks compound. In a article, author is Bucur, Madalina-Petruta, introduce new discover of the category.

Critical Evaluation of Acetylthiocholine Iodide and Acetylthiocholine Chloride as Substrates for Amperometric Biosensors Based on Acetylcholinesterase

Numerous amperometric biosensors have been developed for the fast analysis of neurotoxic insecticides based on inhibition of cholinesterase (AChE). The analytical signal is quantified by the oxidation of the thiocholine that is produced enzymatically by the hydrolysis of the acetylthiocholine pseudosubstrate. The pseudosubstrate is a cation and it is associated with chloride or iodide as corresponding anion to form a salt. The iodide salt is cheaper, but it is electrochemically active and consequently more difficult to use in electrochemical analytical devices. We investigate the possibility of using acetylthiocholine iodide as pseudosubstrate for amperometric detection. Our investigation demonstrates that operational conditions for any amperometric biosensor that use acetylthiocholine iodide must be thoroughly optimized to avoid false analytical signals or a reduced sensitivity. The working overpotential determined for different screen-printed electrodes was: carbon-nanotubes (360 mV), platinum (560 mV), gold (370 mV, based on a catalytic effect of iodide) or cobalt phthalocyanine (110 mV, but with a significant reduced sensitivity in the presence of iodide anions).

Electric Literature of 144-48-9, Each elementary reaction can be described in terms of its molecularity, the number of molecules that collide in that step. The slowest step in a reaction mechanism is the rate-determining step.you can also check out more blogs about 144-48-9.

Children learn through play, and they learn more than adults might expect. Science experiments are a great way to spark their curiosity, SDS of cas: 88-67-588-67-5, Name is 2-Iodobenzoic acid, SMILES is O=C(O)C1=CC=CC=C1I, belongs to iodides-buliding-blocks compound. In a article, author is Drozd, Anatoliy V., introduce new discover of the category.

Spectrophotometric determination of trace amounts of iodide-ions in form of ionic associate with brilliant green using electrochemical oxidation

A combined method involving electrochemical oxidation of iodide to iodate at a platinum electrode followed by extraction in CCl4 of ionic associates of iodine-iodide complexes with brilliant green, formed in excess of iodide, was developed for the spectrophotometric quantification of iodide. The slope of the calibration curve yields a molar extinction coefficient of epsilon = 3.10(5) L mol(-1)cm(-1). This method can be used for the quantification of iodide in the concentration range of 3.10(-7) – 3.10(-6) mol L-1 with a detection limit of 5.10(-8) mol L-1. The interfering effect of other ions on the determination of the iodide concentration was also investigated. The method was successfully applied for the determination of iodide in real samples of NaCl and spring water. Relative standard deviation is 1 – 2%.

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 88-67-5. SDS of cas: 88-67-5.

Chemistry is an experimental science, Formula: C8H4F13I, and the best way to enjoy it and learn about it is performing experiments.Introducing a new discovery about 2043-57-4, Name is 1,1,1,2,2,3,3,4,4,5,5,6,6-Tridecafluoro-8-iodooctane, molecular formula is C8H4F13I, belongs to iodides-buliding-blocks compound. In a document, author is Khan, Khalid Mohammed.

A convenient iodination method for alcohols using cesium iodide/methanesulfonic acid and its comparison using cesium iodide/p-toluenesulfonic acid or cesium iodide/aluminium chloride

In situ generation of hydrogen iodide from cesium iodide/methanesulfonic acid was found to be an attractive reagent combination for the conversion of alkyl, allyl, and benzyl alcohols to their corresponding iodides under mild conditions. The method is compared with that using cesium iodide/p-toluenesulfonic acid or cesium iodide/aluminium chloride.

Balanced chemical reaction does not necessarily reveal either the individual elementary reactions by which a reaction occurs or its rate law. In my other articles, you can also check out more blogs about 2043-57-4. Formula: C8H4F13I.

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 Masuyama, Y, once mentioned the application of 60166-93-0, Name is Iopamidol, molecular formula is C17H22I3N3O8, molecular weight is 777.09, MDL number is MFCD00867931, category is iodides-buliding-blocks. Now introduce a scientific discovery about this category, Quality Control of Iopamidol.

Carbonyl allylations by allylic chlorides utilizing a reduction of tin(IV) iodide to triiodostannate(II) species with iodide sources

Carbonyl allylations by allylic chlorides either with tin(IV) iodide and tetrabutylammonium iodide (TBAI) in dichloromethane or with tin(IV) iodide and sodium iodide in 1,3-dimethylimidazolidin-2-one at room temperature produced the corresponding homoallylic alcohols. The carbonyl allylations probably proceeded via the reduction of tin(IV) iodide to triiodostannate(II) species with iodide sources such as TBAl and Nal, which led to the construction of a tin(IV)-catalytic cycle based on regeneration of tin(IV) iodide via the transmetalation of homoallyloxytriiodotin to homoallyloxytrimethylsilane with iodotrimethylsilane. (c) 2005 Elsevier Ltd. All rights reserved.

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Related Products of 460-37-7, As an important bridge between the micro and macro material world, chemistry is one of the main methods and means for humans to understand and transform the material world. 460-37-7, Name is 1,1,1-Trifluoro-3-iodopropane, SMILES is ICCC(F)(F)F, belongs to iodides-buliding-blocks compound. In a article, author is ZHANG, ML, introduce new discover of the category.

INHIBITION OF THYROCYTE IODIDE UPTAKE BY H(+)K(+)ATPASE INHIBITOR, TIMOPRAZOLE

The inhibitory effect of timoprazole on iodide uptake by cultured thyrocytes was observed using FRTL-5 cells. The inhibition was noticed to be dose dependent and was eliminated completely by rinsing. Timoprazole pretreated with acid had inhibitory effects, but [H-3] leucine incorporation experiments indicated that acidified timoprazole inhibited protein synthesis to some degree. In addition, TSH-induced cAMP production was also inhibited by acidified timoprazole. Timoprazole pretreated in a neutral solution did not have any cytotoxic effects on TSH-induced cAMP production or protein synthesis at concentrations less than 1000 mu M, suggesting that timoprazole by itself has specific effects on iodide uptake. The absence of any direct interaction of the drug with iodide was confirmed by separation of timoprazole and iodide on a C-18 Sep-Pak column. It is concluded that timoprazole by itself could inhibit iodide transport through the thyroid cell membrane. This may provide a useful system in further investigating the mechanism of iodide transport.

Related Products of 460-37-7, Each elementary reaction can be described in terms of its molecularity, the number of molecules that collide in that step. The slowest step in a reaction mechanism is the rate-determining step.you can also check out more blogs about 460-37-7.

Let¡¯s face it, organic chemistry can seem difficult to learn. Especially from a beginner¡¯s point of view. Like 76801-93-9, Name is 5-Amino-N1,N3-bis(2,3-dihydroxypropyl)-2,4,6-triiodoisophthalamide. In a document, author is Hosseinzadeh, R, introducing its new discovery. COA of Formula: C14H18I3N3O6.

Copper-catalyzed etherification of aryl iodides using KF/Al2O3: An improved protocol

A simple and efficient method for the coupling of aryl iodides with aliphatic alcohols and phenols that does not require the use of alkoxide bases is described. This C-O bond forming procedure shows that the combination of air stable CuI and 1,10-phenanthroline in the presence of KF/Al2O3 comprises an extremely efficient and general catalyst system for the etherification of aryl iodides. Different functionalized aryl iodides were coupled with alcohols and phenols using this method.

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 76801-93-9 help many people in the next few years. COA of Formula: C14H18I3N3O6.

Catalysts are substances that increase the reaction rate of a chemical reaction without being consumed in the process. 460-37-7, Name is 1,1,1-Trifluoro-3-iodopropane, SMILES is ICCC(F)(F)F, belongs to iodides-buliding-blocks compound. In a document, author is de la Cuesta, John L., introduce the new discover, COA of Formula: C3H4F3I.

Iodine assimilation by marine diatoms and other phytoplankton in nitrate-replete conditions

Several marine phytoplankton species, primarily diatoms, were examined for the accumulation of iodide (10 species) and iodate (9 species) using radioactive iodine-125 in f/2 artificial seawater, a nitrate-enriched medium. Iodide accumulation ( net uptake) rates were variable, and diatoms exhibited the highest rates. Emiliania huxleyi and Synechococcus sp. did not accumulate iodide. Accumulation rates ranged from 0 to 1.7 fmol cell(-1) d(-1). The diatom Porosira glacialis accumulated the greatest amount of iodide and was used to determine efflux rates of iodide. Iodide efflux was characterized by two distinct phases of iodide release: an initial rapid release rate of 10 amol cell(-1) min(-1) from the free space and a subsequent cellular release rate of 0.13 amol cell(-1) min(-1), which corresponds to a daily cellular release rate of 0.19 fmol cell(-1) d(-1). Accumulation of iodate ranged from 0 to 19 amol cell(-1) d(-1), with P. glacialis displaying the highest rate. Emiliania, Synechococcus, and Chaetoceros did not show significant iodate accumulation. Iodide is the preferred chemical species of iodine for uptake under nitrate-replete conditions: iodide accumulation rates ranged from 3 to 90 times larger than those for iodate for the species studied. If the iodate accumulated is tightly coupled to its reduction to iodide, the accumulation rates suggest that phytoplankton-mediated iodate reduction is not environmentally significant. If diatoms can reduce iodate to iodide, their overall contribution to surface-water iodide, while living, would be further reduced because of their ability to reassimilate released iodide.

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 460-37-7 is helpful to your research. COA of Formula: C3H4F3I.