Category: iodides-buliding-blocks

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.

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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 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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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.

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. 144-48-9, Name is 2-Iodoacetamide, formurla is C2H4INO. In a document, author is SATOH, T, introducing its new discovery. Formula: C2H4INO.

DESULFONYLATIVE IODINATION OF NAPHTHALENESULFONYL CHLORIDES WITH ZINC IODIDE OR POTASSIUM-IODIDE CATALYZED BY DICHLOROBIS(BENZONITRILE)PALLADIUM(II) IN THE PRESENCE OF LITHIUM-CHLORIDE AND TITANIUM(IV) ISOPROPOXIDE

Iodination of naphthalenesulfonyl chlorides accompanied by desulfonylation efficiently proceeded on treatment with either zinc iodide or potassium iodide using a catalyst system of [PdCl2(PhCN)2]/LiCl/Ti(OPr(i))4.

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Chemistry can be defined as the study of matter and the changes it undergoes. You¡¯ll sometimes hear it called the central science because it is the connection between physics and all the other sciences, starting with biology. 60166-93-0, Name is Iopamidol, molecular formula is , belongs to iodides-buliding-blocks compound. In a document, author is Goto, H, Product Details of 60166-93-0.

Interference of carbohydrates in the determination of the methoxyl content of lignin in woody samples

To evaluate the effect of the presence of carbohydrates on the determination of the methoxyl content of lignin, the mechanism of acid-catalyzed reaction of lignin methoxyl groups with iodide ion to form methyl iodide was evaluated using carbohydrate and lignin model compounds. Not only the iodide concentration but also the acid concentration was found to significantly affect the rate of formation of methyl iodide. This fact and Hammett plots of the relative reaction rates observed for several model compounds suggest an S(N)2cA reaction mechanism for methyl iodide formation. Carbohydrates interfered with the rate of formation of methyl iodide, probably by acting as Lewis bases. Interestingly, the study also revealed that a certain amount of methyl iodide could arise from carbohydrates even when the carbohydrates did not contain methoxyl groups as potential precursors to methyl iodide. These sources of error were significant when methoxyl content was determined for samples with low lignin content.

Sometimes chemists are able to propose two or more mechanisms that are consistent with the available data. If a proposed mechanism predicts the wrong experimental rate law, however, the mechanism must be incorrect.Welcome to check out more blogs about 60166-93-0, in my other articles. Product Details of 60166-93-0.

Chemistry is the experimental and theoretical study of materials on their properties at both the macroscopic and microscopic levels. 619-58-9, Name is 4-Iodobenzoic acid, molecular formula is C7H5IO2. In an article, author is Feng, Xiujuan,once mentioned of 619-58-9, Recommanded Product: 4-Iodobenzoic acid.

Stereoselective Synthesis of Vinyl Iodides through Copper(I)-Catalyzed Finkelstein-Type Halide-Exchange Reaction

An efficient method for the stereoselective synthesis of vinyl iodides is described. The reactions of vinyl bromides with potassium iodide proceed smoothly in the presence of a copper catalyst under mild reaction conditions to produce the corresponding vinyl iodides stereospecifically and in satisfactory to excellent yields.

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Related Products of 144-48-9, 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. 144-48-9, Name is 2-Iodoacetamide, SMILES is NC(=O)CI, belongs to iodides-buliding-blocks compound. In a article, author is ESMADI, FT, introduce new discover of the category.

SEQUENTIAL ATOMIC-ABSORPTION SPECTROMETRIC DETERMINATION OF CHLORIDE AND IODIDE IN A FLOW SYSTEM USING AN ONLINE PRECONCENTRATION TECHNIQUE

A flow injection method is described for the sequential determination of chloride and iodide in a mixture of the two. The chloride-iodide mixture is precipitated from solution by silver nitrate and the precipitated silver chloride is dissolved by ammonia solution to determine chloride after which the precipitated silver iodide is dissolved by potassium cyanide solution to determine iodide. The method allows the analysis of about 15 samples h-1 and mixtures with different chloride: iodide ratios can be analysed at the mu-mol dm-3 level.

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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 YAQOOB, M, once mentioned the application of 76801-93-9, Name is 5-Amino-N1,N3-bis(2,3-dihydroxypropyl)-2,4,6-triiodoisophthalamide, molecular formula is C14H18I3N3O6, molecular weight is 705.02, MDL number is MFCD08063355, category is iodides-buliding-blocks. Now introduce a scientific discovery about this category, COA of Formula: C14H18I3N3O6.

FLOW-INJECTION PROCEDURES FOR DETERMINATION OF IODIDE AND IODATE IODIDE WITH SPECTROFLUORIMETRIC AND SPECTROPHOTOMETRIC DETECTION, RESPECTIVELY

Iodide was determined using a flow-injection system based on the catalytic reduction of cerium(IV) to fluorescent cerium(III) [lambda(ex) = 260 nm, lambda(em) = 350 nm]. Iodate and iodide were determined spectrophotometrically by a sensitive colour reaction with p-aminophenol. Iodide was oxidized by hydrogen peroxide to iodate in the presence of p-aminophenol. Iodate in turn oxidized p-aminophenol to an indamine dye which has an absorbance maximum at 540 nm.

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Reference of 619-58-9, The transformation of simple hydrocarbons into more complex and valuable products via catalytic C¨CH bond functionalisation has revolutionised modern synthetic chemistry. 619-58-9, Name is 4-Iodobenzoic acid, SMILES is O=C(O)C1=CC=C(I)C=C1, belongs to iodides-buliding-blocks compound. In a article, author is Rowe, E., introduce new discover of the category.

Double Salts Iodide Scintillators: Cesium Barium Iodide, Cesium Calcium Iodide, and Barium Bromine Iodide

In this study we review the state-of-the-art for double salt iodide scintillators, in particular cesium barium iodide (CBI), cesium calcium iodide (CCI) and barium bromine iodide (BBI), as well as report on their scintillation and optical properties. Double salt iodides inherently have high density and atomic number which translates to good stopping power for energetic particles, in particular gamma rays. Light yields of 54,000 ph/MeV for CBI, 51,000 ph/MeV for CCI, and 46,000 ph/MeV for BBI were measured. A FWHM energy resolution for the 662 keV full absorption peak was observed at 5.7% for CBI, 16.3% for CCI and 3.56% for BBI. The principal scintillation decay timing for CBI was 840 ns, 462 ns for BBI, and two distinct time components of 9 ns and 1900 ns were observed for CCI.

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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. 3058-39-7, Name is 4-Iodobenzonitrile, molecular formula is C7H4IN. In an article, author is McLanahan, Eva D.,once mentioned of 3058-39-7, Name: 4-Iodobenzonitrile.

A biologically based dose-response model for dietary iodide and the hypothalamic-pituitary-thyroid axis in the adult rat: Evaluation of iodide deficiency

A biologically based dose-response (BBDR) model was developed for dietary iodide and the hypothalamic-pituitary-thyroid (HPT) axis in adult rats. This BBDR-HPT axis model includes submodels for dietary iodide, thyroid-stimulating hormone (TSH), and the thyroid hormones, T(4) and T(3). The submodels are linked together via key biological processes, including (1) the influence of T(4) on TSH production ( the HPT axis negative feedback loop), (2) stimulation of thyroidal T(4) and T(3) production by TSH, (3) TSH upregulation of the thyroid sodium (Na(+))/iodide symporter, and (4) recycling of iodide from metabolism of thyroid hormones. The BBDR-HPT axis model was calibrated to predict steady-state concentrations of iodide, T4, T3, and TSH for the euthyroid rat whose dietary intake of iodide was 20 mu g/day. Then the BBDR-HPT axis model was used to predict perturbations in the HPT axis caused by insufficient dietary iodide intake, and simulation results were compared to experimental findings. The BBDR-HPT axis model was successful in simulating perturbations in serum T4, TSH, and thyroid iodide stores for low-iodide diets of 0.33-1.14 mu g/day. Model predictions of serum T(3) concentrations were inconsistent with observations in some cases. BBDR-HPT axis model simulations show a steep dose-response relationship between dietary intake of iodide and serum T(4) and TSH when dietary iodide intake becomes insufficient (less than 2 mu g/day) to sustain the HPT axis. This BBDR-HPT axis model can be linked with physiologically based pharmacokinetic models for thyroid-active chemicals to evaluate and predict dose-dependent HPT axis alterations based on hypothesized modes of action. To support continued development of this model, future studies should include time course data after perturbation of the HPT axis to capture changes in endogenous iodide, serum TSH, T(4), and T(3).

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