Month: March 2021

Chemistry is the science of change. But why do chemical reactions take place? Why do chemicals react with each other? The answer is in thermodynamics and kinetics, COA of Formula: C3H4F3I, 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 Josefsson, M, introduce the new discover.

Sodium-iodide symporter mediates iodide secretion in rat gastric mucosa in vitro

In vivo studies on rats have demonstrated that considerable amounts of iodide are transported from the bloodstream into the gastric lumen. The mechanisms for and functional significance of this transport are poorly understood. Active (driven by Na+/K+-ATPase) iodide transport into thyroid follicular cells is mediated by the sodium-iodide symporter (NIS), which is also abundantly expressed in gastric mucosa. We aimed to further investigate the iodide transport in gastric mucosa and the possible role of NIS in this transport process. Iodide transport in rat gastric mucosa was studied in vitro in an Ussing chamber system using I-125 as a marker. The system allows measurements in both directions over a mucosal specimen. A considerable transport of iodide (from the serosal to the mucosal side) was established across the gastric mucosa, whereas in the opposite direction (mucosa to serosa), iodide transport was negligible. Sodium perchlorate (NaClO4), a competitive inhibitor of NIS, and ouabain, an inhibitor of the Na+/K+-ATPase, both attenuated gastric iodide transport from the serosal to the mucosal side. To investigate a possible neuroendocrine regulation of the iodide transport identified to occur from the serosal to the mucosal side of the stomach, thyroid-stimulating hormone (TSH), thyrotropin-releasing hormone (TRH), vasoactive intestinal peptide (VIP), histamine, or nitric oxide donor S-nitroso-N-acetyl-D,L-penicillamine (SNAP) was added. None of these substances influenced the iodide transport. We conclude that iodide is actively transported into the gastric lumen and that this transport is at least partly mediated by NIS. Additional investigations are needed to understand the regulation and significance of this transport.

A reaction mechanism is the microscopic path by which reactants are transformed into products. Each step is an elementary reaction. In my other articles, you can also check out more blogs about 460-37-7. COA of Formula: C3H4F3I.

Reference of 60166-93-0, 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. 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 Fornaro, L., introduce new discover of the category.

Synthesis of mercuric iodide and bismuth tri-iodide nanoparticles for heavy metal iodide films nucleation

We synthesized mercuric iodide and bismuth tri-iodide nanoparticles by suspension in octadecene, from Hg(NO3)2.H2O and I2, and from Bi(NO3)3.5H2O and I2, respectively. The best synthesis conditions were 2 h at 70-80 degrees C, followed by 10 min at 110 degrees C for mercuric iodide nanoparticles, and 4 h at 80-110 degrees C, followed by 10 min at 180-210 degrees C for bismuth tri-iodide ones. Nanoparticles were then washed and centrifuged with ether repeatedly. Compounds identity was confirmed by X-ray diffraction (XRD) and energy dispersive spectrometry (EDS). We found shifts of the X-ray diffraction maxima for nanoparticles of both compounds. We characterized the nanoparticles by transmission (TEM) and scanning (SEM) electron microscopy. We obtained disk-like and squared mercuric iodide nanostructures, 80-140 nm and 100-125 nm in size respectively. We also obtained rounded and rod-like bismuth tri-iodide nanoparticles, 30-500 nm in size. Acetonitrile and isopropanol suspensions of mercuric iodide nanoparticles, and acetonitrile suspension of bismuth tri-iodide nanoparticles exhibited peak maxima shifts in their UV-Vis spectra. We synthesized for the first time mercuric iodide and bismuth tri-iodide nanoparticles by the suspension method, although we have not yet obtained uniform shape and size distributions. They offer interesting perspectives for crystalline film nucleation and for improving current applications of these materials, as well as for opening new ones. (C) 2011 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim)

Reference 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.

A catalyst don’t appear in the overall stoichiometry of the reaction it catalyzes, Application In Synthesis of 1-Bromo-3-fluoro-2-iodobenzene, but it must appear in at least one of the elementary reactions in the mechanism for the catalyzed reaction. 450412-29-0, Name is 1-Bromo-3-fluoro-2-iodobenzene, molecular formula is C6H3BrFI. In an article, author is Voronkov, M. G.,once mentioned of 450412-29-0.

Acyl iodides in organic synthesis: IX. Cleavage of the Si-O-C and Si-O-Si moieties

Reactions of acyl iodides RCOI (R = Me, Ph) with organosilicon compounds involve cleavage of the Si-O-C and Si-O-Si fragments. Acetyl iodide reacts with alkyl(alkoxy)silanes with evolution of heat, and cleavage of the Si-O bond results in the formation of oligo-or polysiloxanes, alkyl iodides, and alkyl acetates. 1,3-Diacetoxytetramethyldisiloxane is formed in the reaction of acetyl iodide with dimethoxy(dimethyl)silane. Acyl iodides readily react with 1-ethoxysilatrane to give 1-acyloxysilatranes as a result of cleavage of the C-O bond. The reaction of acetyl iodide with hexaethyldisiloxane yields triethylsilyl acetate and triethyliodosilane, while in the reaction with octamethyltrisiloxane iodo(trimethyl)silane and dimethyl(trimethylsiloxy)silyl acetate are obtained.

If you¡¯re interested in learning more about 450412-29-0. The above is the message from the blog manager. Application In Synthesis of 1-Bromo-3-fluoro-2-iodobenzene.

The reaction rate of a catalyzed reaction is faster than the reaction rate of the uncatalyzed reaction at the same temperature. 3058-39-7, Name is 4-Iodobenzonitrile, SMILES is N#CC1=CC=C(I)C=C1, in an article , author is Voronkov, MG, once mentioned of 3058-39-7, Category: iodides-buliding-blocks.

Acyl iodides in organic synthesis: V. Reactions with carboxylic acid esters

Acyl iodides react with alkyl, alkenyl, and aralkyl esters derived from saturated, unsaturated, and aromatic mono- and dicarboxylic acids in the absence of a catalyst. The reaction involves cleavage of the OR bond and formation of organic iodide RI (including CH2=CHI) and one or two symmetric carboxylic acid anhydrides. Phenyl acetate reacts with benzoyl iodide to give acetyl iodide and phenyl benzoate as a result of cleavage of the (O=)C-O bond. The reaction of diethyl fumarate with acetyl iodide is accompanied by cis-trans isomerization to afford maleic anhydride. In the reactions of acetyl iodide with diethyl oxalate and diethyl malonate, CO and CO2 and CO2 and polyketene are formed, respectively, in addition to ethyl iodide and acetic anhydride. Ethyl esters of strong organic acids, e.g., ethyl trihaloacetates, failed to react with acyl iodides under analogous conditions.

Interested yet? Read on for other articles about 3058-39-7, you can contact me at any time and look forward to more communication. Category: iodides-buliding-blocks.

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 MOORE, JS, once mentioned the application of 610-97-9, Name is Methyl 2-iodobenzoate, molecular formula is C8H7IO2, molecular weight is 262.0445, MDL number is MFCD00016351, category is iodides-buliding-blocks. Now introduce a scientific discovery about this category, SDS of cas: 610-97-9.

A CONVENIENT MASKING GROUP FOR ARYL IODIDES

1-Aryl-3,3-dialkyltriazenes give excellent yields of easily isolated aryl iodides upon treatment with methyl iodide.

Do you like my blog? If you like, you can also browse other articles about this kind. Thanks for taking the time to read the blog about 610-97-9, SDS of cas: 610-97-9.

76801-93-9, Name is 5-Amino-N1,N3-bis(2,3-dihydroxypropyl)-2,4,6-triiodoisophthalamide, molecular formula is C14H18I3N3O6, belongs to iodides-buliding-blocks compound, is a common compound. In a patnet, author is Li, Huika, once mentioned the new application about 76801-93-9, Category: iodides-buliding-blocks.

Effect of iodide on human choriogonadotropin, sodium-iodide symporter expression, and iodide uptake in BeWo choriocarcinoma cells

Context: Active placental transport of maternal iodide by the thyroidal sodium iodide symporter ( NIS) provides an essential substrate for fetal thyroid hormone synthesis. NIS is expressed in trophoblast and is regulated by human choriogonadotropin ( hCG). In thyroid, iodide down- regulates expression of several genes including NIS. Placentas of iodine- deficient rats demonstrate up- regulation of NIS mRNA, suggesting a role for iodide in regulating placental NIS. Objectives and Methods: The objectives were to examine effects of iodide on expression of NIS and hCG in BeWo choriocarcinoma cells. Gene expression was studied by quantitative real- time PCR. Effects on NIS protein expression were assessed by Western blotting. Functional activity of NIS was measured by I-125 uptake. Expression of hCG protein was assessed by immunoassay of secreted hormone. Results: Iodide inhibited NIS mRNA and membrane protein expression as well as I-125 uptake, which were paralleled by decreased beta hCG mRNA expression and protein secretion. Iodide had no effects on pendrin expression. Addition of hCG increased NIS mRNA expression. This effect was partially inhibited by addition of iodide. The inhibitory effects of iodide on NIS mRNA expression were abolished by propylthiouracil and dithiothreitol. Conclusions: We conclude that expression of placental NIS is modulated by maternal iodide. This may occur through modulation of hCG effects on NIS and hCG gene expression.

We¡¯ll also look at important developments in the pharmaceutical industry because understanding organic chemistry is important in understanding health, medicine, 76801-93-9. The above is the message from the blog manager. Category: iodides-buliding-blocks.

The reaction rate of a catalyzed reaction is faster than the reaction rate of the uncatalyzed reaction at the same temperature. HPLC of Formula: C8F17I, 507-63-1, Name is Heptadecafluoro-1-iodooctane, SMILES is IC(F)(F)C(F)(F)C(F)(F)C(F)(F)C(F)(F)C(F)(F)C(F)(F)C(F)(F)F, in an article , author is Zhou, Gefei, once mentioned of 507-63-1.

Highly sensitive and selective colorimetric detection of iodide based on anti-aggregation of gold nanoparticles

A simple and reliable colorimetric detection method for iodide has been well established based on the antiaggregation effect of AuNPs in this paper. This assay is highly sensitive and selective toward iodide over other interferent anions due to the high stability of the inorganic complex formed between Hg2+ and iodide. In the absence of iodide, T-rich single-stranded DNA (ssDNA) can specifically bind with Hg2+ to form a stable T-Hg2+-T complex, inducing the solution color change from wine-red to finally violet blue with increasing concentration of Hg2+. However, when Hg2+ is first treated with iodide, the T-Hg2+-T interaction will be interrupted, which results in the anti-aggregation of AuNPs. A linear response from 4 x 10(-8) to 4 x 10(-6) M was obtained for iodide, and a detection limit of 13 nM was achieved.

But sometimes, even after several years of basic chemistry education, it is not easy to form a clear picture on how they govern reactivity! 507-63-1, you can contact me at any time and look forward to more communication. HPLC of Formula: C8F17I.

Chemistry is an experimental science, COA of Formula: C8F17I, and the best way to enjoy it and learn about it is performing experiments.Introducing a new discovery about 507-63-1, Name is Heptadecafluoro-1-iodooctane, molecular formula is C8F17I, belongs to iodides-buliding-blocks compound. In a document, author is Cao, Xue-Ling.

Selective Detection of Iodine/Iodide Using BSA-stabilized Gold Nanoclusters-based Fluorescence Probe

In the present study BSA (bovine serum albumin)-stabilized Au nanoclusters (AuNCs@BSA) were demonstrated as a novel fluorescence probe for sensitive and selective detection of iodine/iodide. Beyond that, the proposed method was successfully applied to the determination of iodine in kelp, meanwhile, after iodide was changed to iodine with redox reactions, the detection of iodide could be successfully achieved using the AuNCs@BSA. This method could be used as a reliable, rapid, and cost-effective technique for the determination of iodine/iodide in real samples.

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 507-63-1, in my other articles. COA of Formula: C8F17I.

Synthetic Route of 507-63-1, The transformation of simple hydrocarbons into more complex and valuable products via catalytic C¨CH bond functionalisation has revolutionised modern synthetic chemistry. 507-63-1, Name is Heptadecafluoro-1-iodooctane, SMILES is IC(F)(F)C(F)(F)C(F)(F)C(F)(F)C(F)(F)C(F)(F)C(F)(F)C(F)(F)F, belongs to iodides-buliding-blocks compound. In a article, author is Kabalka, GW, introduce new discover of the category.

Iodination of organotrifluoroborates: synthesis of vinyl and alkynyl iodides

Vinyl- and alkynyltrifluoroborates are rapidly converted to vinyl and alkynyl iodides under mild conditions using sodium iodide in the presence of chloramine-T. The reaction is stereospecific and proceeds in excellent yield. (C) 2003 Elsevier Ltd. All rights reserved.

Synthetic Route of 507-63-1, 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 507-63-1.

The reaction rate of a catalyzed reaction is faster than the reaction rate of the uncatalyzed reaction at the same temperature. Recommanded Product: 4-Iodobenzonitrile, 3058-39-7, Name is 4-Iodobenzonitrile, SMILES is N#CC1=CC=C(I)C=C1, in an article , author is Choi, Jung-Hwa, once mentioned of 3058-39-7.

Colorimetric iodide detection in water: a new photo-activated indicator system

The photo-induced conversion of iodide to triiodide is an iodide-specific reaction that has now been optimised to produce a reaction-based indicator system for the iodide anion that functions in water. The observed signal (based on the triiodide anions produced upon photo-irradiation) was further amplified with starch (amylase) to produce a signal that can be detected easily by the naked eye. This approach not only allows for the yes/no discrimination of I- over other anions, it also permits detection of the iodide anion at concentrations of epsilon 30M by simple visual means, as well as in iodised table salt.

But sometimes, even after several years of basic chemistry education, it is not easy to form a clear picture on how they govern reactivity! 3058-39-7, you can contact me at any time and look forward to more communication. Recommanded Product: 4-Iodobenzonitrile.