Category: 619-58-9

619-58-9, Name is 4-Iodobenzoic acid, molecular formula is C7H5IO2, belongs to iodides-buliding-blocks compound, is a common compound. In a patnet, author is YEUNG, SCJ, once mentioned the new application about 619-58-9, Computed Properties of C7H5IO2.

RECTAL ADMINISTRATION OF IODIDE AND PROPYLTHIOURACIL IN THE TREATMENT OF THYROID STORM

We administered potassium iodide and propylthiouracil per rectum, in conjunction with intravenous dexamethasone and propranolol, for emergent treatment of a patient in thyroid storm with small bowel obstruction, Shortly after initiation of this treatment, the patient successfully underwent two emergent surgical procedures for resection of an intestinal volvulus with advanced peritonitis, Serum levels of iodide and propylthiouracil showed substantial absorption of these drugs via the rectal route, Measurement of 24-h urinary-free iodide indicated that the bioavailability of potassium iodide delivered by retention enema was at least 40%, Parenteral iodide preparations have been unavailable in the past, and continue to be difficult to obtain emergently. Rectal administration of inorganic iodide is an effective, readily available and less expensive alternative to parenteral sodium iodide for patients in thyroid storm with upper gastrointestinal tract dysfunction.

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The reaction rate of a catalyzed reaction is faster than the reaction rate of the uncatalyzed reaction at the same temperature. 619-58-9, Name is 4-Iodobenzoic acid, SMILES is O=C(O)C1=CC=C(I)C=C1, in an article , author is Marival-Hodebar, L, once mentioned of 619-58-9, SDS of cas: 619-58-9.

A convenient access to 1,1-difluoroethyl triflate and iodide

1,1-Difluoroethyl triflate obtained from 1,1-difluoroethylene and trifluoromethanesulfonic acid is converted into its corresponding iodide by the action of iodide anion in diethyl ketone.

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Chemistry is an experimental science, and the best way to enjoy it and learn about it is performing experiments.Introducing a new discovery about 619-58-9, Name is 4-Iodobenzoic acid, molecular formula is , belongs to iodides-buliding-blocks compound. In a document, author is TROJANEK, A, Safety of 4-Iodobenzoic acid.

PNEUMATOAMPEROMETRIC FLOW-INJECTION DETERMINATION OF IODIDE

A simple flow-through analytical system with pneumatoamperometric detection for the determination of iodide is presented. Iodide is detected after oxidation to iodine by iodate in tartaric acid medium. Iodide at concentrations below 100-mu-g 1(-1) can be detected even in the presence of a large excess of chlorides (more than 10(4)-fold). The effect of other interfering anions was studied and minimized by introducing an auxiliary oxidant into the flow system.

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Electric Literature of 619-58-9, Catalysts allow a reaction to proceed via a pathway that has a lower activation energy than the uncatalyzed reaction. 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 Hepach, Helmke, introduce new discover of the category.

Senescence as the main driver of iodide release from a diverse range of marine phytoplankton

The reaction between ozone and iodide at the sea surface is now known to be an important part of atmospheric ozone cycling, causing ozone deposition and the release of ozone-depleting reactive iodine to the atmosphere. The importance of this reaction is reflected by its inclusion in chemical transport models (CTMs). Such models depend on accurate sea surface iodide fields, but measurements are spatially and temporally limited. Hence, the ability to predict current and future sea surface iodide fields, i.e. sea surface iodide concentration on a narrow global grid, requires the development of process-based models. These models require a thorough understanding of the key processes that control sea surface iodide. The aim of this study was to explore if there are common features of iodate-to-iodide reduction amongst diverse marine phytoplankton in order to develop models that focus on sea surface iodine and iodine release to the troposphere. In order to achieve this, rates and patterns of changes in inorganic iodine speciation were determined in 10 phytoplankton cultures grown at ambient iodate concentrations. Where possible these data were analysed alongside results from previous studies. Iodate loss and some iodide production were observed in all cultures studied, confirming that this is a widespread feature amongst marine phytoplankton. We found no significant difference in log-phase, cell-normalised iodide production rates between key phyto-plankton groups (diatoms, prymnesiophytes including coccolithophores and phaeocystales), suggesting that a phytoplankton functional type (PFT) approach would not be appropriate for building an ocean iodine cycling model. Io-date loss was greater than iodide formation in the majority of the cultures studied, indicating the presence of an as-yet-unidentified missing iodine fraction. Iodide yield at the end of the experiment was significantly greater in cultures that had reached a later senescence stage. This suggests that models should incorporate a lag between peak phytoplankton biomass and maximum iodide production and that cell mortality terms in biogeochemical models could be used to parameterise iodide production. ` date loss was greater than iodide formation in the majority of the cultures studied, indicating the presence of an as-yet-unidentified missing iodine fraction. Iodide yield at the end of the experiment was significantly greater in cultures that had reached a later senescence stage. This suggests that models should incorporate a lag between peak phytoplankton biomass and maximum iodide production and that cell mortality terms in biogeochemical models could be used to parameterise iodide production.

Electric Literature of 619-58-9, Because enzymes can increase reaction rates by enormous factors and tend to be very specific, typically producing only a single product in quantitative yield, they are the focus of active research.you can also check out more blogs about 619-58-9.

The reaction rate of a catalyzed reaction is faster than the reaction rate of the uncatalyzed reaction at the same temperature. 619-58-9, Name is 4-Iodobenzoic acid, SMILES is O=C(O)C1=CC=C(I)C=C1, in an article , author is YUE, J, once mentioned of 619-58-9, SDS of cas: 619-58-9.

STUDY OF IODIDE DISTRIBUTION IN T-GRAINS AND ITS INFLUENCE ON THE LIGHT-ABSORPTION AND ELECTRICAL-PROPERTIES OF T-GRAINS

T-grain AgBr(I) emulsions with different iodide contents and distribution were prepared successfully. X-ray diffraction and STEM-EDS measurements confirmed that the iodide distribution in T-grains is non-homogeneous. Further study showed that the light absorption, ionic conductivity and photoconductivity of T-grains are affected by the iodide distribution in the T-grains. The variation of sensitometric properties of AgBr(I) T-grains with iodide distribution is closely correlated to changes in their light absorption and electrical properties.

Interested yet? Read on for other articles about 619-58-9, you can contact me at any time and look forward to more communication. SDS of cas: 619-58-9.

Chemistry is the experimental science by definition. We want to make observations to prove hypothesis. For this purpose, we perform experiments in the lab. , Application In Synthesis of 4-Iodobenzoic acid, 619-58-9, Name is 4-Iodobenzoic acid, molecular formula is C7H5IO2, belongs to iodides-buliding-blocks compound. In a document, author is Adak, S, introduce the new discover.

An essential role of active site arginine residue in iodide binding and histidine residue in electron transfer for iodide oxidation by horseradish peroxidase

The objective of the present study is to delineate the role of active site arginine and histidine residues of horseradish peroxidase (HRP) in controlling iodide oxidation using chemical modification technique. The arginine specific reagent, phenylglyoxal (PGO) irreversibly blocks iodide oxidation following pseudofirst order kinetics with second order rate constant of 25.12 min(-1) M-1. Radiolabelled PGO incorporation studies indicate an essential role of a single arginine residue in enzyme inactivation. The enzyme can be protected both by iodide and an aromatic donor such as guaiacol. Moreover, guaiacol-protected enzyme can oxidise iodide and iodide-protected enzyme can oxidise guaiacol suggesting the regulatory role of the same active site arginine residue in both iodide and guaiacol binding. The protection constant (K-p) for iodide and guaiacol are 500 and 10 muM respectively indicating higher affinity of guaiacol than iodide at this site. Donor binding studies indicate that guaiacol competitively inhibits iodide binding suggesting their interaction at the same binding site. Arginine-modified enzyme shows significant loss of iodide binding as shown by increased K-d value to 571 mM from the native enzyme (K-d = 150 mM). Although arginine-modified enzyme reacts with H2O2 to form compound II presumably at a slow rate, the latter is not reduced by iodide presumably due to low affinity binding. The role of the active site histidine residue in iodide oxidation was also studied after disubstitution reaction of the histidine imidazole nitrogens with diethylpyrocarbonate (DEPC), a histidine specific reagent. DEPC blocks iodide oxidation following pseudofirst order kinetics with second order rate constant of 0.66 min(-1) M-1. Both the nitrogens (delta, epsilon) of histidine imidazole were modified as evidenced by the characteristic peak at 222 nm. The enzyme is not protected by iodide suggesting that imidazolium ion is not involved in iodide binding. Moreover, DEPC-modified enzyme binds iodide similar to the native enzyme. However, the modified enzyme does not form compound II but forms compound I only with higher concentration of H2O2 suggesting the catalytic role of this histidine in the formation and autoreduction of compound I. Interestingly, compound I thus formed is not reduced by iodide indicating block of electron transport from the donor to the compound I. We suggest that an active site arginine residue regulates iodide binding while the histidine residue controls the electron transfer to the heme ferryl group during oxidation.

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 619-58-9. Application In Synthesis of 4-Iodobenzoic acid.

619-58-9, Name is 4-Iodobenzoic acid, molecular formula is C7H5IO2, belongs to iodides-buliding-blocks compound, is a common compound. In a patnet, author is Schroder-van der Elst, JP, once mentioned the new application about 619-58-9, Product Details of 619-58-9.

Dietary flavonoids and iodine metabolism

Flavonoids have inhibiting effects on the proliferation of cancer cells, including thyroidal ones. In the treatment of thyroid cancer the uptake of iodide is essential. Flavonoids are known to interfere with iodide organification ill vitro, and to cause goiter. The influence of flavonoids on iodine metabolism was studied in a human thyroid cancer cell line (FTC-133) transfected with the human sodium/iodide transporter (NIS). All flavonoids inhibited growth, and iodide uptake was decreased in most cells. NIS mRNA expression was affected during the early hours after treatment, indicating that these flavonoids can act on NIS. Pendrin mRNA expression did not change after treatment. Only myricetin increased iodide uptake. Apeginin, luteolin, kaempferol and F21388 increased the efflux of iodide, leading to a decreased retention of iodide. Instead myricetin increased the retention of iodide; this could be of use in the radioiodide treatment of thyroid cancer.

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Application of 619-58-9, Enzymes are biological catalysts that produce large increases in reaction rates and tend to be specific for certain reactants and products. 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 IWATA, K, introduce new discover of the category.

SPONTANEOUS RAMAN-SPECTRA OF THE CYANINE DYE DODCI AND ITS 6 ANALOGS USING TITANIUM-SAPPHIRE LASER EXCITATION

The infrared and spontaneous Raman spectra of the cyanine dye 3,3-diethyloxadicarbocyanine iodide (DODCI) and its six analogues, 3,3′-diethylthiacarbocyanine iodide (DTCI), 3,3′-diethyl-9-methylthiacarbocyanine iodide (MDTCI), 3,3′-diethylthiadicarbocyanine iodide (DTDCI), 3,3′-diethylselenacarbocyanine iodide (DSCI), 3,3′-diethyloxacarbocyanine iodide (DOCI), and 3,3′-diethyloxatricarbocyanine iodide (DOTCI), have been measured. A Raman spectrometer consisting of a Ti:sapphire laser and a CCD detector was found to be advantageous in avoiding the strong fluorescence of these cyanine dyes. The spectra have been compared, and several of the vibrational bands have been assigned. The locations of the CC and CN stretching vibrations suggest considerably weakened bond alternations for these molecules in solution.

Application of 619-58-9, The reactant in an enzyme-catalyzed reaction is called a substrate. Enzyme inhibitors cause a decrease in the reaction rate of an enzyme-catalyzed reaction.I hope my blog about 619-58-9 is helpful to your research.

In an article, author is SLAVIK, J, once mentioned the application of 619-58-9, Name is 4-Iodobenzoic acid, molecular formula is C7H5IO2, molecular weight is 248.02, MDL number is MFCD00002533, category is iodides-buliding-blocks. Now introduce a scientific discovery about this category, SDS of cas: 619-58-9.

QUATERNARY ALKALOIDS FROM THALICTRUM-MINUS SUBSP ELATUM (JACQ) STOY ET STEFANOV

Quaternary alkaloids berberine (chloride, 0.18%), and, after transformation into the iodides, magnoflorine (iodide, 1.06%), jatrorrhizine (iodide, 0.066%), thalphenine (iodide, 0.040%) and thalifendine (iodide, 0.021%) were isolated, after separation of the tertiary bases (0.38%), from the root of Thalicrum minus subsp. elatum (JACQ.) STOJ. et STEFANOV of Czechoslovak origin (1.8% alkaloid content). The aerial parts (0.013% alkaloids) in their quaternary fraction contain only negligible amounts of magnoflorine, berberine, and coptisine (which is the first time coptisine was found in the Thalictrum genus).

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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, SDS of cas: 619-58-9, 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 document, author is BAKLANOV, AM, introduce the new discover.

THE INFLUENCE OF LEAD IODIDE AEROSOL DISPERSITY ON ITS ICE-FORMING ACTIVITY

Lead iodide aerosol ice-forming activity obtained by thermocondensation in a cloud chamber has been studied. Lead iodide aerosols have been found to yield a maximum number of 2 x 10(18) kg-1 of ice crystals at 253 K. At 263 K the maximum output amounts to 3 x 10(16) kg-1 and at 268 K lead iodide aerosols are generally inert. Ice-forming characteristics of the lead iodide are inferior to those of silver iodide and copper acetylacetonate, but are better than those of phloroglucinol and copper sulphide. The possibility of producing ice-forming nuclei with 10-fold reduced lead iodide content is considered by coating inert nuclei with small quantities of active substance. The activity of such coated nuclei is estimated.

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 619-58-9. SDS of cas: 619-58-9.