Category: 2215-33-0

Grases, F. published the artcileDetermination of cobalt(II) by use of a very simple monitored thermometric technique based on the action of this cation on the aerial oxidation of 2,2′-dipyridyl ketone hydrazone, Quality Control of 2215-33-0, the publication is Journal of Thermal Analysis (1984), 29(6), 1397-402, database is CAplus.

Co(II) 0.1-0.9 ppm was determined by catalysis of autoxidation of 1.0mM di(2-pyridyl) ketone hydrazone at pH 12 (Clark-Lubs buffer), monitored by thermometry. The relative standard deviation was 2.1%. The selectivity was good.

Journal of Thermal Analysis published new progress about 2215-33-0. 2215-33-0 belongs to pyridine-derivatives, auxiliary class Pyridine,Amine, name is 2-((2-(Pyridin-2-yl)hydrazono)methyl)pyridine, and the molecular formula is C11H10N4, Quality Control of 2215-33-0.

Referemce:
https://en.wikipedia.org/wiki/Pyridine,
Pyridine | C5H5N – PubChem

Lazaro, F. published the artcileStopped-flow injection determination of copper(II) at the ng ml^-1 level, Application of 2-((2-(Pyridin-2-yl)hydrazono)methyl)pyridine, the publication is Analytica Chimica Acta (1984), 177-85, database is CAplus.

A stopped-flow injection method for determination of Cu(II) in the range 0.2-300 ng/mL is proposed, based on the catalytic effect of this ion on the 2,2′-dipyridylketone hydrazone/H₂O₂ reaction. The oxidation product shows an intense blue fluorescence that is monitored at excitation wavelength = 350 nm, emission wavelength = 427 nm. The sampling rate (72/h), relative standard deviation (1.4%), and the lack of interference from most foreign ions allowed application of the method to the determination of Cu in foods and blood serum.

Analytica Chimica Acta published new progress about 2215-33-0. 2215-33-0 belongs to pyridine-derivatives, auxiliary class Pyridine,Amine, name is 2-((2-(Pyridin-2-yl)hydrazono)methyl)pyridine, and the molecular formula is C11H10N4, Application of 2-((2-(Pyridin-2-yl)hydrazono)methyl)pyridine.

Referemce:
https://en.wikipedia.org/wiki/Pyridine,
Pyridine | C5H5N – PubChem

Lazaro Boza, Fernando published the artcileCatalytic-fluorometric determination of copper at the nanograms per milliliter level by flow injection analysis, COA of Formula: C11H10N4, the publication is Analyst (Cambridge, United Kingdom) (1984), 109(3), 333-7, database is CAplus.

A catalytic-fluorometric method for the determination of Cu(II) at the ng/mL level is proposed, based on the catalytic action of Cu(II) on the oxidation of 2,2′-bipyridyl ketone hydrazone (I) by dissolved O. To obtain the maximum anal. signal, 2 steps are necessary: oxidation of I (basic medium) and development of fluorescence (strongly acidic medium). Flow injection anal. is suitable for this determination as it is sensitive and rapid. The calibration graph shows 2 linear intervals, 8-30 ng/mL (relative standard deviation 2.3%) and 40-300 ng/mL (relative standard deviation 2.0%). The sampling frequency is 100 h^-1 for an injected volume of 60 μL.

Analyst (Cambridge, United Kingdom) published new progress about 2215-33-0. 2215-33-0 belongs to pyridine-derivatives, auxiliary class Pyridine,Amine, name is 2-((2-(Pyridin-2-yl)hydrazono)methyl)pyridine, and the molecular formula is C11H10N4, COA of Formula: C11H10N4.

Referemce:
https://en.wikipedia.org/wiki/Pyridine,
Pyridine | C5H5N – PubChem

Lazaro, Fernando published the artcileCatalytic-fluorometric determination of EDTA and iron(III) by flow injection analysis. Inhibition methods, Quality Control of 2215-33-0, the publication is Fresenius’ Zeitschrift fuer Analytische Chemie (1985), 321(5), 467-70, database is CAplus.

Methods are described for the direct determination of EDTA and indirect determination of Fe(III), based on the inhibition effect of EDTA on the catalytic action of Cu(II) on the oxidation of 2,2′-dipyridyl ketone hydrazone by H₂O₂ and on the decrease of this inhibition effect in the presence of Fe(III), resp. These methods allow the determination of EDTA in the ranges 0.4-2.0 and 0.2-1.0 μg.mL^-1 for the normal and reversed flow-injection anal. (FIA) modes, resp., and 40-240 ng.mL^-1 for Fe(III) by reversed FIA.

Fresenius’ Zeitschrift fuer Analytische Chemie published new progress about 2215-33-0. 2215-33-0 belongs to pyridine-derivatives, auxiliary class Pyridine,Amine, name is 2-((2-(Pyridin-2-yl)hydrazono)methyl)pyridine, and the molecular formula is C11H10N4, Quality Control of 2215-33-0.

Referemce:
https://en.wikipedia.org/wiki/Pyridine,
Pyridine | C5H5N – PubChem

Lazaro, Fernando published the artcileSimultaneous catalytic-fluorometric determination of copper and mercury by flow-injection analysis, Application In Synthesis of 2215-33-0, the publication is Fresenius’ Zeitschrift fuer Analytische Chemie (1985), 320(2), 128-32, database is CAplus.

A catalytic-fluorometric method for the simultaneous determination of Cu(II) and Hg(II) is based on their catalytic effects on the oxidation of dipyridyldiketone phenylhydrazone and 2,2′-dipyridylketone hydrazone, resp., using the flow-injection anal./stopped-flow mode. The errors in the determination of these cations are <10%, with a sampling rate of 45 samples per h and the relative standard deviation is 0.91% and 1.6% for Cu(II) and for Hg(II), resp.

Fresenius’ Zeitschrift fuer Analytische Chemie published new progress about 2215-33-0. 2215-33-0 belongs to pyridine-derivatives, auxiliary class Pyridine,Amine, name is 2-((2-(Pyridin-2-yl)hydrazono)methyl)pyridine, and the molecular formula is C11H10N4, Application In Synthesis of 2215-33-0.

Referemce:
https://en.wikipedia.org/wiki/Pyridine,
Pyridine | C5H5N – PubChem

Kramberger, L. published the artcileHeterocycles. CXXVII. Action of sulfur on some heterocyclic compounds. Formation of thioamides, oxidative cyclization and thiation, Quality Control of 2215-33-0, the publication is Journal of Heterocyclic Chemistry (1975), 12(2), 337-42, database is CAplus.

The formation of heterocyclic thioamides from alkylpyridines, heteroaromatic amines and sulfur was investigated. Oxidative cyclization of these thioamides afforded the corresponding thiazoloazines. Attempted thiation of some hydrazones gave triazolopyridines and some examples of direct thiation of heterocycles are given. Thus, 2-methylpyridine, 5, and RNH2 gave 10 I (R = 3-pyridyl, 4-pyridyl, 4-methyl-2-pyridyl, 5-methyl-2-pyridyl, 2-pyridazyl, 2-pyrazyl, 2-triazolyl, 5-tetrazolyl, 2-benzothiazolyl, anilino). Oxidative cyclization of I (R = 5-methyl-2-pyridyl) gave II. Attempted thiation of III gave IV and thiation of 2-(N-2-pyridylformimidoyl)pyridine gave I (R = 2-pyridyl).

Journal of Heterocyclic Chemistry published new progress about 2215-33-0. 2215-33-0 belongs to pyridine-derivatives, auxiliary class Pyridine,Amine, name is 2-((2-(Pyridin-2-yl)hydrazono)methyl)pyridine, and the molecular formula is C11H10N4, Quality Control of 2215-33-0.

Referemce:
https://en.wikipedia.org/wiki/Pyridine,
Pyridine | C5H5N – PubChem

Seet, Ai-Mee published the artcileSpectrophotometric determination of palladium(II) using 1,3-bis(2′-pyridyl)-1,2-diazaprop-2-ene, Application of 2-((2-(Pyridin-2-yl)hydrazono)methyl)pyridine, the publication is Mikrochimica Acta (1974), 235-43, database is CAplus.

Pd was determined spectrophotometrically at 573 nm (molar absorptivity was 1.8 × 104) after complexation in 0.05N HCl with 1,3-bis-(2-pyridyl)-1,2-diaza-2-propene (I) and extraction of the complex into C6H6. Beer’s law was obeyed for â‰?00 μg Pd when the complex is extracted into 10 ml. C6H6. Complexes with 1:1 and 2:1 Pd-I mole ratios were formed. For determinations of 10-80 μg Pd, relative standard deviations were 1.99-4.64%.

Mikrochimica Acta published new progress about 2215-33-0. 2215-33-0 belongs to pyridine-derivatives, auxiliary class Pyridine,Amine, name is 2-((2-(Pyridin-2-yl)hydrazono)methyl)pyridine, and the molecular formula is C9H5ClO4S, Application of 2-((2-(Pyridin-2-yl)hydrazono)methyl)pyridine.

Referemce:
https://en.wikipedia.org/wiki/Pyridine,
Pyridine | C5H5N – PubChem

Seet, Ai-Mee published the artcileDetermination and properties of erythrocyte lipoyl dehydrogenase, SDS of cas: 2215-33-0, the publication is Mikrochimica Acta (1975), 2(4-5), 407-12, database is CAplus.

Erythrocyte lipoyl dehydrogenase activity was determined colorimetrically with Pd(II)-1,3-bis(2′-pyridyl)-1,2-diazaprop-2-ene. The properties of red cell enzyme were described and normal values for erythrocyte lipoyl dehydrogenase were given. The possible role of this enzyme in the erythrocytes was discussed.

Mikrochimica Acta published new progress about 2215-33-0. 2215-33-0 belongs to pyridine-derivatives, auxiliary class Pyridine,Amine, name is 2-((2-(Pyridin-2-yl)hydrazono)methyl)pyridine, and the molecular formula is C9H5ClO4S, SDS of cas: 2215-33-0.

Referemce:
https://en.wikipedia.org/wiki/Pyridine,
Pyridine | C5H5N – PubChem

Cabalin, L. M. published the artcileSample illumination configurations for spatially resolved Raman spectrometry using a charge-coupled device detector, Recommanded Product: 2-((2-(Pyridin-2-yl)hydrazono)methyl)pyridine, the publication is Talanta (1995), 42(10), 1379-83, database is CAplus and MEDLINE.

Two simple configurations for sample illumination using a CCD detectors are shown. The choice of an appropriate sample illumination can be crucial to obtain spatial and spectral information of complex samples. Simultaneous Raman spectra of a heterogeneous sample of 3 compounds can be obtained using a vertical sample illumination. Spatially resolved resonant Raman and surface-enhanced resonant Raman spectra of Ni 2-pyridinecarboxaldehyde 2-pyridylhydrazone complex were observed with a low integration time. Dividing the CCD in 2 regions and with horizontal multiline sample illumination (Ar-ion laser at 488 nm and He-Ne laser at 632.8 nm) spatially resolved fluorescence of a homogeneous mixture of dyes were obtained. The total image was acquired in only 1 s.

Talanta published new progress about 2215-33-0. 2215-33-0 belongs to pyridine-derivatives, auxiliary class Pyridine,Amine, name is 2-((2-(Pyridin-2-yl)hydrazono)methyl)pyridine, and the molecular formula is C11H10N4, Recommanded Product: 2-((2-(Pyridin-2-yl)hydrazono)methyl)pyridine.

Referemce:
https://en.wikipedia.org/wiki/Pyridine,
Pyridine | C5H5N – PubChem

Montes, R. published the artcileSpectrophotometric reaction-rate method for the determination of nitrite in waters with pyridine-2-aldehyde 2-pyridylhydrazone, Recommanded Product: 2-((2-(Pyridin-2-yl)hydrazono)methyl)pyridine, the publication is Talanta (1987), 34(12), 1021-6, database is CAplus and MEDLINE.

A method for the kinetic determination of submicrogram amounts of NO₂^– was developed, based on the bromate oxidation of pyridine-2-aldehyde 2-pyridylhydrazone in an acidic medium by NO₂^–. The reaction is monitored spectrophotometrically at 372 nm. A comparative study with HCl and HClO₄ media shows that the anal. parameters are affected by the type of acid used. Within-day precision, based on 10 replicate determinations, was >0.011 μg/mL, which corresponds to 2.2-1.5% relative standard deviation at the concentrations examined Application of this method in the determination of NO₂^– in water is discussed. The recovery of NO₂^– from drinking waters was 90-117%, and the average relative standard deviation for NO₂^– determination is polluted river water was 3.2%. Large amounts of NO₂^– and NH₄⁺ do not interfere. However, there is interference by Cu²⁺, Pd²⁺, and electroactive substances. Major advantages for the method are simplicity, absence of a reagent blank, and the wide determination range.

Talanta published new progress about 2215-33-0. 2215-33-0 belongs to pyridine-derivatives, auxiliary class Pyridine,Amine, name is 2-((2-(Pyridin-2-yl)hydrazono)methyl)pyridine, and the molecular formula is C11H10N4, Recommanded Product: 2-((2-(Pyridin-2-yl)hydrazono)methyl)pyridine.

Referemce:
https://en.wikipedia.org/wiki/Pyridine,
Pyridine | C5H5N – PubChem