1 5-naphthalene disulfonic acid reaction test

Full text of Dyes classified by intermediates : dyes

Full text of Dyes classified by intermediates : dyes tabularly arranged under each intermediate with statistical and other data for both dyes and intermediates : glossary of dye and intermediate names alphabetically arranged See other formats

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Crystalline forms of a biphenyl compound

14-9-2006Crystalline forms of a biphenyl compound United States Patent Application 20060205949 Kind Code: A1 Abstract: The invention provides crystalline naphthalene-1 5-disulfonic acid salts of biphenyl-2-ylcarbamic acid 1-{2-[5-(4-hydroxybenzylamino)pentylcarbamoyl] ethyl}piperidin-4-yl ester and pharmaceutically

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Electrochemical treatment of trypan blue synthetic

The regression value indicates the deviation from the first order reaction rate equation for current density 37 mA cm-2 and TB concentration 100 mg L-1 can be attributed to the fact that at lower applied current density and high initial concentration of TB the active concentration of oxidants is the limiting factor

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Polymer Degradation and Stability (v 98 #9)

Among these nonmetallic catalysts it was found that 1 3-propanedisulfonic acid (PSA) and 1 5-naphthalene disulfonic acid (NSA) exhibited satisfactory catalytic reactivity and PLLAs with excellent thermal stability high molecular weight little coloration and good optical purity were successfully synthesized by MP/SSP

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1 5

Home Zaozhuang Tairui Fine Chemical Co Ltd 1 5-Naphthalene disulfonic acid 1 5-Naphthalene disulfonic acid Specifications More Products Product description Structural formula Mol formula C10H8O6S2 Mol weight 288 Appearance Gray powder crystal Purity =99% Packing 850kg woven bag Protecting against moisture Get Quotation

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2 4

The reaction can be carried out in a manner known per se the reaction conditions being dependent especially on the reactivity of the leaving group Y and the reactivity of the amino group in the aniline of formula 111 usually in the presence of a suitable solvent or diluent or of a mixture thereof and if necessary in the presence of an acid

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Chinese Journal of Chromatography

The optimization of the separation was performed on an Agilent HC-C18 column (250 mm4 6 mm 5 μm) A solution of methanol-water (85:15 v/v) containing 1 17 mmol/L 1 5-naphthalene disulfonic acid was used as mobile phase at a flow rate of 1 0 mL/min and the column temperature was set at 35 ℃

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Indian Patents 244195:1 2 4

Full Text: 1 2 4-TRIAZOLE DERIVATIVE METHOD FOR PREPARING THE SAME AND PHARMACEUTICAL COMPOSITION CONTAINING THE SAME Technical Field The present invention relates to a 1 2 4-triazole derivative or non-toxic salt thereof a method for preparing the same and a pharmaceutical composition containing the same as an active ingredient

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Polymer Degradation and Stability (v 98 #9)

Among these nonmetallic catalysts it was found that 1 3-propanedisulfonic acid (PSA) and 1 5-naphthalene disulfonic acid (NSA) exhibited satisfactory catalytic reactivity and PLLAs with excellent thermal stability high molecular weight little coloration and good optical purity were successfully synthesized by MP/SSP

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Indian Patents 203536:BENFLUMETOL DERIVATIVES

pyrano[4 3-j]1 2-benzodioxepin is in the review stage for approval worldwide as a treatment for malaria Because of phenomena such as the development of resistance it remains an urgent necessity to find new compounds which show particularly good efficacy against malaria and minimal toxicity

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Synthesis of Macromolecules by Step Growth

4 1 Condensation Polymerization (Polycondensation) Condensation polymerizations step in the polycondensation of a hydroxycarboxylic acid (AB type) is the forma-tion of a dimer that possesses the same end groups as the resulting macromolecules increases continuously with reaction time unlike many addition polymerizations e g radical

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Verfahren zur Herstellung einer lithographischen

The above mentioned developer compositions each contain an organic substance such as an organic solvent or organic surfactant However the organic solvents have defects that they generally have a toxicity and smell that they are inflammable to cause a fire and that waste solutions of them must pass BOD test and that they increase the cost

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Standard Specification Template

Standard Specification Template for use within Intellectual Property A pharmaceutically acceptable acid addition salt can be formed by reaction of a compound of naphthalenesulfonic (e g 2-naphthalenesulfonic) naphthalene disulfonic (e g 1 5-naphthalene disulfonic) naphthoic 1-hydroxy-2-naphthoic biphenylsulfonic xinfanoic

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Synthesis of Cost

This study investigated the adsorption behaviors of pyrene (PYR) on a pomelo peel adsorbent (PPA) biochar (PPB) and H3PO4-modified (HPP) NaOH-activated (NPP) and dimethoxydiphenylsilane-treated (DPDMS-NPP) pomelo peel materials SEM FTIR and elemental analyses of DPDMS-NPP's surface structure showed that the material was

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Effect of Organic Sulfonic Acids as Catalysts during

was 4 mmol but only 2 mmol of 1 5-naphthalene-disulfonic acid (NDSA) and SA was used because of their divalency All of the organic sulfonic acids used were very effective for bark liquefaction under the given liquefaction conditions the liquefaction yields were in the range from 96 to 99 % (Figure 1) However the yield

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Multimedia Environmental Goals For Environmental

----- ABSTRACT Multimedia Environmental Goals (MEG's) are levels of significant contaminants or degradents (in ambient air water or land or in emissions of effluents conveyed to the ambient media) that are judged to be (1) appropriate for preventing certain negative effects in the surrounding populations or ecosystems or (2) representative of the control limits achievable

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Process for the determination of bilirubin in fluids

Process for the determination of bilirubin in fluids fluid with a mixture of diazosulfanilic acid-1 5-naphthalene disulfonate and ethylene or propylene glycol in aqueous mineral acid to form a chromophore and thereafter measuring the absorbance of the chromophore after the reaction is complete by means of a centrifugal

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Biological Chemical and Photochemical Treatment of

Due to the refractory nature of most commercial naphthalene sulphonates this review focused on the application of advanced oxidation processes for their efficient degradation by providing a deeper insight into the reaction mechanisms involved and products formed in advanced chemical and photochemical oxidation of important naphthalene sulphonates

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BUNSEKI KAGAKU

The determination of homosulfamine by the gravimetric method precipitating as 1 5-naphthalene disulfonic acid salt was re-examined and it was found that a certain amount of the salt (23 4 mg) is soluble in 100ml of 1%reagent solution at 20C and then following equation was proposed Weight of homosulfamine (mg)

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