Day: October 21, 2021

Recently I am researching about GOLD-BASED DRUGS; CRYSTAL-STRUCTURE; ANTICANCER AGENTS; 2-SUBSTITUTED PYRIDINES; SOLUTION CHEMISTRY; CARBENE COMPLEXES; CYTOTOXICITY; REACTIVITY; DERIVATIVES; INHIBITION, Saw an article supported by the University of Kentucky; UK Igniting Research Collaboration (IRC). Recommanded Product: 91-02-1. Published in AMER CHEMICAL SOC in WASHINGTON ,Authors: Gukathasan, S; Parkin, S; Awuah, SG. The CAS is 91-02-1. Through research, I have a further understanding and discovery of Phenyl(pyridin-2-yl)methanone

The synthesis of a novel class of cyclometalated gold(III) complexes supported by benzoylpyridine, benzylpyridine, and (1R,2R)-(+)-1,2-diaminocyclohexane (DACH) ligands, along with their crystal structures, is reported. These compounds provide a new scaffold to investigate biological properties of gold(III) complexes. The six complexes were prepared and characterized, following reactions of (C,N) cyclometalated gold(III) scaffolds, [Au(C boolean AND N)Cl-2] with DACH, which yielded a new series of cyclometaled gold(III), 3-5, of the type [Au(C boolean AND NH)(DACH)(2)](+) and the nitrogen substituted cyclometalated Au(III), 6-8, of the type [Au-(C boolean AND N)(DACH)](2+). Antiproliferative activity of these complexes in a panel of cancer cells showed promising results with IC50 in the micromolar range and selectivity over normal epithelial cells, MRCS. Whereas 8 shows minimal interaction with superhelical DNA except at high gold concentrations of 500 mu M, complex 5 does not show interaction even at 1000 mu M. The complexes display significant uptake in OVCAR8 cancer cells within 200-1200 pmol/million cells with the exception of complex 4. Differential cellular uptake was observed for the complexes; for example, while 3 and 8 display significant uptake, 4 showed minimal uptake. The compounds proved to be stable under physiological conditions and were minimally affected by either glutathione or sodium ascorbate. Cell cycle studies reveal a G1 arrest induced by representative complexes. The results reveal that enhanced Au(III) stabilization promoted by combined cyclometalated and DACH ligands may offer ligand tuning insights for novel anticancer drug design.

Recommanded Product: 91-02-1. About Phenyl(pyridin-2-yl)methanone, If you have any questions, you can contact Gukathasan, S; Parkin, S; Awuah, SG or concate me.

Reference:
Pyridine – Wikipedia,
,Pyridine | C5H5N – PubChem

An article Antimicrobial and antitumor activity of S-methyl dithiocarbazate Schiff base zinc(II) complexes WOS:000667427600006 published article about X-RAY-STRUCTURE; METAL-COMPLEXES; BIOLOGICAL EVALUATION; CRYSTAL-STRUCTURE; DNA-BINDING; METHYLDITHIOCARBAZATE SMDTC; ANTIBACTERIAL ACTIVITY; ANTIFUNGAL ACTIVITY; CIRCULAR-DICHROISM; ZN(II) COMPLEXES in [Ramilo-Gomes, Filipa; Addis, Yemataw; Tekamo, Israel; Cavaco, Isabel; Matilde Marques, M.; Pessoa, Joao Costa; Correia, Isabel] Univ Lisbon, Inst Super Tecn, Ctr Quim Estrutural, Av Rovisco Pais, P-1049001 Lisbon, Portugal; [Ramilo-Gomes, Filipa; Addis, Yemataw; Tekamo, Israel; Cavaco, Isabel; Matilde Marques, M.; Pessoa, Joao Costa; Correia, Isabel] Univ Lisbon, Inst Super Tecn, Dept Engn Quim, Av Rovisco Pais, P-1049001 Lisbon, Portugal; [Ramilo-Gomes, Filipa] Univ Lisbon, Inst Invest Medicamento IMed ULisboa, Fac Farm, Av Prof Gama Pinto, P-1649003 Lisbon, Portugal; [Addis, Yemataw; Tekamo, Israel; Cavaco, Isabel] Univ Algarve, Dept Quim & Farm, Campus Gambelas, P-8005139 Faro, Portugal; [Campos, Debora L.; Pavan, Fernando R.] UNESP, Fac Ciencias Farmaceut, CP 582, BR-14801902 Araraquara, SP, Brazil; [Gomes, Clara S. B.] Univ NOVA Lisboa, Dept Quim, LAQV REQUIMTE Lab Associado Quim Verde, Fac Ciencias & Tecnol, P-2829516 Monte De Caparica, Portugal; [Gomes, Clara S. B.] Univ NOVA Lisboa, Appl Mol Biosci Unit UCIBIO, Fac Ciencias & Tecnol, P-2829516 Monte De Caparica, Portugal; [Brito, Vanessa; Santos, Adriana O.; Domingues, Fernanda; Luis, Angelo; Ferreira, Susana; Silvestre, Samuel] Univ Beira Interior, CICS UBI Hlth Sci Res Ctr, Av Infante D Henrique, P-6200506 Covilha, Portugal in 2021.0, Cited 80.0. The Name is 3-Hydroxy-5-(hydroxymethyl)-2-methylisonicotinaldehyde hydrochloride. Through research, I have a further understanding and discovery of 65-22-5. Category: pyridine-derivatives

Schiff bases (SB) obtained from S-methyl dithiocarbazate and aromatic aldehydes: salicylaldehyde (H2L1), ovanillin (H2L2), pyridoxal (H2L3) and 2,6-diformyl-4-methylphenol (H3L4), and their corresponding Zn(II)complexes (1-4), are synthesized. All compounds are characterized by elemental analyses, infrared, UV-Vis, nuclear magnetic resonance spectroscopy and mass spectrometry. The structures of H2L2 and [Zn-2(L-1)(2)(H2O) (DMF)] (1a) (DMF = dimethylformamide) are solved by single crystal X-ray diffraction. The SB coordinates the metal center through the Ophenolate, Nimine and Sthiolate atoms. The radical scavenging activity is tested using the 2,2-diphenyl-1-picrylhydrazyl (DPPH) assay, with all ligand precursors showing IC50 values similar to 40 mu M. Cytotoxicity studies with several tumor cell lines (PC-3, MCF-7 and Caco-2) as well as a non-tumoral cell line (NHDF) are reported. Interestingly, 1 has relevant and selective antiproliferative effect against Caco-2 cells (IC50 = 9.1 mu M). Their antimicrobial activity is evaluated in five bacterial strains (Klebsiella pneumoniae, Acinetobacter baumannii, Listeria monocytogenes, Pseudomonas aeruginosa and Staphylococcus aureus) and two yeast strains (Candida albicans and Candida tropicalis) with some compounds showing bacteriostatic and fungicidal activity. The minimal inhibitory concentration (MIC90) of HnL against Mycobacterium tuberculosis is also reported, with H2L2 and H3L4 showing very high activity (MIC90 < 0.6 mu g/mL). The ability of the compounds to bind bovine serum albumin (BSA) and DNA is evaluated for H3L4 and [Zn-2(L-4)(CH3COO)] (4), both showing high binding constants to BSA (ca. 106 M 1) and ability to bind DNA. Overall, the reported compounds show relevant antitumor and antimicrobial properties, our data indicating they may be promising compounds in several fields of medicinal chemistry. Category: pyridine-derivatives. About 3-Hydroxy-5-(hydroxymethyl)-2-methylisonicotinaldehyde hydrochloride, If you have any questions, you can contact Ramilo-Gomes, F; Addis, Y; Tekamo, I; Cavaco, I; Campos, DL; Pavan, FR; Gomes, CSB; Brito, V; Santos, AO; Domingues, F; Luis, A; Marques, MM; Pessoa, JC; Ferreira, S; Silvestre, S; Correia, I or concate me.

Reference:
Pyridine – Wikipedia,
,Pyridine | C5H5N – PubChem

An article Thiosemicarbazone ligand, nickel(II) and ruthenium(II) complexes based on vitamin B6 vitamer: The synthesis, different coordination behaviors and antioxidant activities WOS:000510860900034 published article about TRANSITION-METAL-COMPLEXES; X-RAY-STRUCTURE; PYRIDOXAL THIOSEMICARBAZONE; BIOLOGICAL-ACTIVITY; CRYSTAL-STRUCTURE; STRUCTURAL-CHARACTERIZATION; SPECTRAL CHARACTERIZATION; CATALYTIC APPLICATION; REDOX PROPERTIES; FREE-RADICALS in [Bal-Demirci, Tulay; Guveli, Sukriye; Ulkuseven, Bahri] Istanbul Univ Cerrahpasa, Engn Fac, TR-34320 Istanbul, Turkey; [Yesilyurt, Saffet] Maltepe Univ, Fac Engn & Nat Sci, TR-34857 Istanbul, Turkey; [Ozdemir, Namik] Ondokuz May S Univ, Fac Educ, Dept Math & Sci Educ, TR-55139 Samsun, Turkey in 2020.0, Cited 79.0. SDS of cas: 65-22-5. The Name is 3-Hydroxy-5-(hydroxymethyl)-2-methylisonicotinaldehyde hydrochloride. Through research, I have a further understanding and discovery of 65-22-5

Mixed ligand nickel(II) and ruthenium(II) complexes were synthesized from pyridoxal-N-allyl-thiosemicarbazone hydrochloride and triphenylphosphine. The structures of the complexes have been characterized by elemental analysis, IR, H-1 and P-31 NMR, conductivity, magnetic moment measurements and single-crystal X-ray diffraction technique. Based on X-ray crystallographic studies, a square-planar structure has been proposed for the Ni(II) complex, in which the thiosemicarbazone ligand acts as dianionic tridentate ONS ligand. In the case of the Ru(II) complex, the thiosemicarbazone is coordinated to metal atom as a monoanionic bidentate NS donor ligand in an octahedral geometry. Antioxidant activities of the ligand and its metal complexes were calculated as their trolox equivalent antioxidant capacities (TEAC) by CUPRAC method and DPPH assay. Both the ligand and its metal complexes were found to be antioxidant and are much more antioxidant at least 2.1 times than trolox, even, ligand is 3.5 times greater than that of trolox according to CUPRAC. A linear correlation (correlation coefficient R-2 = 0.9997) appeared between the obtained TEAC values by the two antioxidant assays.

SDS of cas: 65-22-5. About 3-Hydroxy-5-(hydroxymethyl)-2-methylisonicotinaldehyde hydrochloride, If you have any questions, you can contact Bal-Demirci, T; Guveli, S; Yesilyurt, S; Ozdemir, N; Ulkuseven, B or concate me.

Reference:
Pyridine – Wikipedia,
,Pyridine | C5H5N – PubChem

Recommanded Product: Phenyl(pyridin-2-yl)methanone. In 2021.0 J MOL STRUCT published article about DENSITY-FUNCTIONAL THEORY; ELECTROCHEMICAL PROPERTIES; ANTIMICROBIAL ACTIVITY; CORROSION INHIBITION; MOLECULAR-STRUCTURE; COPPER(II); COORDINATION; MECHANISMS in [Shukla, Satyendra Nath; Gaur, Pratiksha; Raidas, Mohan Lal; Chaurasia, Bhaskar; Bagri, Sanjay Singh] Govt Sci Coll, Dept Chem, Coordinat Chem Res Lab, Jabalpur 482001, MP, India in 2021.0, Cited 58.0. The Name is Phenyl(pyridin-2-yl)methanone. Through research, I have a further understanding and discovery of 91-02-1.

A novel NNO pincer type ligand (E)-N’-(phenyl(pyridin-2-yl)methylene)isonicotinohydrazide, PPMINH, was synthesized by condensation of 2-benzoyl pyridine and isonicotinylhydrazide. The ligand PPMINH on reaction with metal ions Fe(III), Co(II) and Ni(II) yielded six metal derivatives. Different analysis tools like; Elemental analyses, ESI-MS, FT-IR, molar conductivity, UV-spectra, magnetic susceptibility, NMR and EPR measurement were used. Theoretical FT-IR, H-1 NMR and C-13 NMR of ligand and complex 6 exhibits quite a good correlation coefficient. EPR spectrum of complex 6 at LNT suggests octahedral geometry around Ni(II). The ligand and complexes were screened for antibacterial activity. DFT has been carried out to optimize the geometry of the ligand and complexes. The properties most relevant to their potential action as corrosion inhibitors has been calculated all parameters of DFT from the inhibitor molecule to the metal atom. The corrosion inhibition effect of compounds on mild steel in an acidic medium was studied for 24, 48, 72 h using weight loss measurement. (C) 2021 Elsevier B.V. All rights reserved.

About Phenyl(pyridin-2-yl)methanone, If you have any questions, you can contact Shukla, SN; Gaur, P; Raidas, ML; Chaurasia, B; Bagri, SS or concate me.. Recommanded Product: Phenyl(pyridin-2-yl)methanone

Reference:
Pyridine – Wikipedia,
,Pyridine | C5H5N – PubChem

An article Palladium-Catalyzed Formal Hydroalkylation of Aryl-Substituted Alkynes with Hydrazones WOS:000537524300001 published article about C-H BONDS; OLEFIN SYNTHESIS; ENANTIOSELECTIVE SYNTHESIS; INTERNAL ALKYNES; ALDEHYDES; ALKENYLATION; CARBANIONS; 1,3-DIENES; ALCOHOLS; ALKENES in [Yu, Lin; Lv, Leiyang; Qiu, Zihang; Chen, Zhangpei; Liang, Yu-Feng; Li, Chao-Jun] McGill Univ, Dept Chem, 801 Sherbrooke St West, Montreal, PQ H3A 0B8, Canada; [Yu, Lin; Lv, Leiyang; Qiu, Zihang; Chen, Zhangpei; Liang, Yu-Feng; Li, Chao-Jun] McGill Univ, FRQNT Ctr Green Chem & Catalysis, 801 Sherbrooke St West, Montreal, PQ H3A 0B8, Canada; [Yu, Lin; Lv, Leiyang; Tan, Ze] Hunan Univ, Coll Chem & Chem Engn, State Key Lab Chemo Biosensing & Chemometr, Changsha 410082, Peoples R China in 2020.0, Cited 62.0. The Name is 3-Pyridinecarboxaldehyde. Through research, I have a further understanding and discovery of 500-22-1. SDS of cas: 500-22-1

We have developed an unprecedented Pd-catalyzed formal hydroalkylation of alkynes with hydrazones, which are generated in situ from naturally abundant aldehydes, as both alkylation reagents and hydrogen donors. The hydroalkylation proceeds with high regio- and stereoselectivity to form (Z)-alkenes, which are more difficult to generate compared to (E)-alkenes. The reaction is compatible with a wide range of functional groups, including hydroxy, ester, ketone, nitrile, boronic ester, amine, and halide groups. Furthermore, late-stage modifications of natural products and pharmaceutical derivatives exemplify its unique chemoselectivity, regioselectivity, and synthetic applicability. Mechanistic studies indicate the possible involvement of Pd-hydride intermediates.

SDS of cas: 500-22-1. About 3-Pyridinecarboxaldehyde, If you have any questions, you can contact Yu, L; Lv, LY; Qiu, ZH; Chen, ZP; Tan, Z; Liang, YF; Li, CJ or concate me.

Reference:
Pyridine – Wikipedia,
,Pyridine | C5H5N – PubChem

Authors Asante, I; Pei, H; Zhou, E; Liu, SY; Chui, D; Yoo, E; Conti, DV; Louie, SG in ROYAL SOC CHEMISTRY published article about METHYLENETETRAHYDROFOLATE REDUCTASE POLYMORPHISM; COLON-CANCER; DNA METHYLATION; FOLATE STATUS; RISK; HOMOCYSTEINE; DIHYDROFOLATE; METABOLITES; ADENOMA; PLASMA in [Asante, Isaac; Pei, Hua; Zhou, Eugene; Liu, Siyu; Chui, Darryl; Yoo, EunJeong; Louie, Stan G.] Univ Southern Calif, Sch Pharm, Dept Clin Pharm, Los Angeles, CA 90089 USA; [Conti, David V.] Univ Southern Calif, Keck Sch Med, Dept Prevent Med, Los Angeles, CA USA in 2019.0, Cited 33.0. Computed Properties of C8H10ClNO3. The Name is 3-Hydroxy-5-(hydroxymethyl)-2-methylisonicotinaldehyde hydrochloride. Through research, I have a further understanding and discovery of 65-22-5

Introduction: colorectal cancer (CRC) continues to be difficult to diagnose due to the lack of reliable and predictive biomarkers. Objective: to identify blood-based biomarkers that can be used to distinguish CRC cases from controls. Methods: a workflow for untargeted followed by targeted metabolic profiling was conducted on the plasma samples of 26 CRC cases and ten healthy volunteers (controls) using liquid chromatography-mass spectrometry (LCMS). The data acquired in the untargeted scan was processed and analyzed using MarkerViewt software. The significantly different ions that distinguish CRC cases from the controls were identified using a mass-based human metabolome search. The result was further used to inform the targeted scan workflow. Results: the untargeted scan yielded putative biomarkers some of which were related to the folate-dependent one-carbon metabolism (FOCM). Analysis of the targeted scan found the plasma levels of nine FOCM metabolites to be significantly different between cases and controls. The classification models of the cases and controls, in both the targeted and untargeted approaches, each yielded a 97.2% success rate after cross-validation. Conclusion: we have identified plasma metabolites with screening potential to discriminate between CRC cases and controls.

About 3-Hydroxy-5-(hydroxymethyl)-2-methylisonicotinaldehyde hydrochloride, If you have any questions, you can contact Asante, I; Pei, H; Zhou, E; Liu, SY; Chui, D; Yoo, E; Conti, DV; Louie, SG or concate me.. Computed Properties of C8H10ClNO3

Reference:
Pyridine – Wikipedia,
,Pyridine | C5H5N – PubChem

I found the field of Biotechnology & Applied Microbiology; Engineering very interesting. Saw the article Towards in situ continuous feeding via controlled release of complete nutrients for fed-batch culture of animal cells published in 2020.0. Computed Properties of C8H10ClNO3, Reprint Addresses Gadgil, M (corresponding author), CSIR Natl Chem Lab, Chem Engn & Proc Dev, Pune 411008, Maharashtra, India.. The CAS is 65-22-5. Through research, I have a further understanding and discovery of 3-Hydroxy-5-(hydroxymethyl)-2-methylisonicotinaldehyde hydrochloride

Small-scale culture of animal cells in suspension is of importance for many applications. At a small-scale, fed-batch is achieved either by manual bolus feeding or the use of liquid handling robots. In this study, we report an alternate application of a hydrogel for in situ continuous delivery of a nutrient feed comprising 18 amino acids, vitamins, antioxidants, and trace elements. We show that amino acid release is sustained for at least seven days. Importantly, release rates of individual amino acids can be independently modulated by changing their loading. We demonstrate the application of this hydrogel for complete in situ feeding of nutrients to a suspension adapted CHO cell line expressing IgG leading to 2.7-fold and 4-fold improvement in integral viable cell density (IVCD) and volumetric productivity respectively. This is similar to improvements obtained by bolus liquid feeding. Further, supplying glucose from the same hydrogel to eliminate manual feeding led to a 1.8-fold increase in IVCD accompanied by a 3-fold increase in volumetric productivity as compared to batch culture. In summary, this study provides a proof-of-concept that hydrogels can enable completely closed in situ feeding for mammalian cell culture requiring no external intervention. Such continuous in situ delivery can potentially enable closed culture systems maintaining nutrients at low levels mimicking physiological concentrations.

Computed Properties of C8H10ClNO3. About 3-Hydroxy-5-(hydroxymethyl)-2-methylisonicotinaldehyde hydrochloride, If you have any questions, you can contact Rawat, J; Gadgil, M or concate me.

Reference:
Pyridine – Wikipedia,
,Pyridine | C5H5N – PubChem

An article Molecular structures, spectral, electrochemical, DFT and antioxidant activities of copper(II) complexes with NNO donor Schiff base ligand WOS:000609160500005 published article about TRANSITION-METAL-COMPLEXES; X-RAY STRUCTURES; CRYSTAL-STRUCTURE; ELECTRONIC-PROPERTIES; SUPEROXIDE; BINUCLEAR; NITROGEN; MIMICS; ION; STEREOCHEMISTRY in [Singh, Yogendra Pratap; Patel, Satish Kumar] APS Univ, Dept Chem, Rewa 486003, MP, India in 2021.0, Cited 72.0. The Name is Phenyl(pyridin-2-yl)methanone. Through research, I have a further understanding and discovery of 91-02-1. Formula: C12H9NO

The synthesis and solid state structural, spectral and electrochemical solution characterization of [Cu(L)(acpy)]ClO4 1 and [Cu(L)(NO3)]( )2 [where L = N'[(E)-phenyl(pyridin-2-yl)methylideneithiophene-2-carbohydrazide and acpy = 2,6-Diacetylpyridine] have been done by elemental analysis, UV-vis, FTIR, electrochemical techniques (CV and DPV) and electron paramagnetic resonance (epr) spectroscopy. The single crystal structures were solved by the X-ray diffraction technique. In complex 1, copper ion is in a distorted octahedral environment. The geometry of copper(II) in complex 2 is distorted square pyramidal (tau = 0.201). The mono deprotonated, HL ligand act as a tridentate to a copper(II) ion. On the basis of density functional theory (DFT) calculation, the electronic excitations involve transitions mainly from metal ligand bonding mostly the alpha-LUMO within the dominant Cu d(xy) character and to alpha-LUMO+1. Epr spectra for polycrystalline samples showed the copper(II) hyperfine features as well as half-field signal which are appropriate for Delta M-s = +/- 2 of dimers. Presence of half-field signal in 1 is due to solid-solid interaction (intra-molecular) where as in 2 the nature of interaction is intra-molecular. The antioxidant superoxide measurements show that the both complexes 1 and 2 behave as superoxide mimic in alkaline nitro blue tetrazolium chloride assay. (C) 2020 Elsevier B.V. All rights reserved.

Formula: C12H9NO. About Phenyl(pyridin-2-yl)methanone, If you have any questions, you can contact Singh, YP; Patel, SK or concate me.

Reference:
Pyridine – Wikipedia,
,Pyridine | C5H5N – PubChem

I found the field of Chemistry very interesting. Saw the article Substituent Position-Controlled Stereoselectivity in Enzymatic Reduction of Diaryl- and Aryl(heteroaryl)methanones published in 2019.0. COA of Formula: C12H9NO, Reprint Addresses Huang, ZD; Chen, F (corresponding author), Fudan Univ, Engn Ctr Catalysis & Synth Chiral Mol, Dept Chem, 220 Handan Rd, Shanghai 200433, Peoples R China.; Huang, ZD; Chen, F (corresponding author), Shanghai Engn Res Ctr Ind Asymmetr Catalysis Chir, 220 Handan Rd, Shanghai 200433, Peoples R China.. The CAS is 91-02-1. Through research, I have a further understanding and discovery of Phenyl(pyridin-2-yl)methanone

We report here the discovery of a novel ketoreductase (KRED), named KmCR2, with a broad substrate spectrum on bioreduction of sterically bulky diaryl- and aryl(heteroaryl)methanones. The position of the substituent on aromatic rings (meta versus para or ortho) was revealed to control the stereospecificity of KmCR2. The stereoselective preparation of both enantiomers of diaryl- or aryl(heteroaryl)methanols using strategically engineered substrates with a traceless directing group (bromo group) showcased the potential application of this substrate-controlled bioreduction reaction. The combined use of substrate engineering and protein engineering, was demonstrated to be a useful strategy in efficiently improving stereoselectivity or switching stereopreference of enzymatic processes.

About Phenyl(pyridin-2-yl)methanone, If you have any questions, you can contact Li, ZN; Wang, ZX; Wang, YH; Wu, XF; Lu, H; Huang, ZD; Chen, F or concate me.. COA of Formula: C12H9NO

Reference:
Pyridine – Wikipedia,
,Pyridine | C5H5N – PubChem

Recommanded Product: 65-22-5. I found the field of Chemistry very interesting. Saw the article Thiosemicarbazone ligand, nickel(II) and ruthenium(II) complexes based on vitamin B6 vitamer: The synthesis, different coordination behaviors and antioxidant activities published in 2020.0, Reprint Addresses Bal-Demirci, T (corresponding author), Istanbul Univ Cerrahpasa, Engn Fac, TR-34320 Istanbul, Turkey.; Ozdemir, N (corresponding author), Ondokuz May S Univ, Fac Educ, Dept Math & Sci Educ, TR-55139 Samsun, Turkey.. The CAS is 65-22-5. Through research, I have a further understanding and discovery of 3-Hydroxy-5-(hydroxymethyl)-2-methylisonicotinaldehyde hydrochloride.

Mixed ligand nickel(II) and ruthenium(II) complexes were synthesized from pyridoxal-N-allyl-thiosemicarbazone hydrochloride and triphenylphosphine. The structures of the complexes have been characterized by elemental analysis, IR, H-1 and P-31 NMR, conductivity, magnetic moment measurements and single-crystal X-ray diffraction technique. Based on X-ray crystallographic studies, a square-planar structure has been proposed for the Ni(II) complex, in which the thiosemicarbazone ligand acts as dianionic tridentate ONS ligand. In the case of the Ru(II) complex, the thiosemicarbazone is coordinated to metal atom as a monoanionic bidentate NS donor ligand in an octahedral geometry. Antioxidant activities of the ligand and its metal complexes were calculated as their trolox equivalent antioxidant capacities (TEAC) by CUPRAC method and DPPH assay. Both the ligand and its metal complexes were found to be antioxidant and are much more antioxidant at least 2.1 times than trolox, even, ligand is 3.5 times greater than that of trolox according to CUPRAC. A linear correlation (correlation coefficient R-2 = 0.9997) appeared between the obtained TEAC values by the two antioxidant assays.

Recommanded Product: 65-22-5. About 3-Hydroxy-5-(hydroxymethyl)-2-methylisonicotinaldehyde hydrochloride, If you have any questions, you can contact Bal-Demirci, T; Guveli, S; Yesilyurt, S; Ozdemir, N; Ulkuseven, B or concate me.

Reference:
Pyridine – Wikipedia,
,Pyridine | C5H5N – PubChem