A variety of benzoic and aryl aliphatic mono and polyiodinated acids and esters (sterol, triglyceride) were radioiodinated in 55–99% radiochemical yield by isotope exchange with Na 125I in a melt of pivalic acid. In general, the reaction was complete in 1 h at 155°C with little or no substrate...

In order to pursue a possibility of application of radiopaque polymer hydrogels to vascular embolization, studies were made on synthesis of iodine containing copolyanions and properties of their hydrogels with polycation via formation of polyion complexes (PIC). Acrylamide derivatives having tri...

Iron oxide magnetic nanoparticles (Fe3O4 MNPs) can effectively activate persulfate anions (S2O82−) to produce sulfate free radicals (SO4−), which are a powerful oxidant with promising applications to degrade organic contaminants. The kinetics of sulfamonomethoxine (SMM) degradation was studied i...

Computational studies have been carried out at the DFT-B3LYP/6-31G(d) level of theory on the structural and spectroscopic properties of novel ethane-1,2-diol-dichlorocyclophosph(V)azane of sulfamonomethoxine (L), and its binuclear Er(III) complex. Different tautomers of the ligand were optimized...

Removal efficiencies of sulfamonomethoxine (SMM) and its degradation intermediates formed by treatment with zeolite/TiO2 composites through adsorption and photocatalysis were investigated in fresh aquaculture wastewater (FAWW). Coexistent substances in the FAWW showed no inhibitory effects again...

It is difficult to remove sulfonamide antibiotics in anionic form from aqueous solution. In this study, the surface properties of chloromethylated polystyrene beads (CP) were modified by sodium hydride (CP-M) to enhance sulfamonomethoxine (SMM) removal. The surface of CP-M became positive charge...

The distribution of sulfamonomethoxine (SMM) and trimethoprim (TMP) in egg yolk and white was measured during and after administration of a SMM/TMP combination in laying hens in doses of 8 g l−1 and 12 g l−1 in drinking water for 7 days. The SMM concentration reached maximal levels on day 2 of t...

Sulfamonomethoxine (SMM), a veterinary antibiotic, is widely used in China. However, the impacts of maternal SMM exposure on neurobehavioral development in early life remain little known. In this study, we investigated the effects of maternal SMM exposure during pregnancy on behavioral and physi...

A precise and reliable analytical method to measure trace levels of sulfamonomethoxine (SMM) and N4-acetyl metabolite in tilapia samples using liquid chromatography-tandem mass spectrometry was developed. Optimized chromatographic separation was performed on C18 reversed-phase columns using grad...

Sulfamonomethoxine, 4-Amino-N-(6-methoxy-4-pyrimidinyl) benzenesulfonamide (C11H12N4O3S), is investigated by single crystal X-ray diffraction technique. Pair of N–H⋯N and C–H⋯O intermolecular interactions along with π···π interaction are responsible for the stability of the molecular pack...

The purpose of this study was to investigate the acute and chronic toxicity of sulfamonomethoxine (SMM) to aquatic organisms to evaluate its impact at different trophic levels in the ecosystem. Regarding the growth inhibition of microalgae, SMM exhibited 72-h median effective concentration (EC50...

Molecularly imprinted polymers (MIPs) synthesized by conventional functional monomers have poor specific recognition ability in strong polar solvent, which is not favorable to their applications in separation and analysis. In this work, an ionic liquid functional monomer, 1-allyl-3-vinylimidazol...

Polymeric chelates of azelaoyl bis-p-chlorophenyl urea (AZPCPU) with Mn(II), Co(II), Ni(II), Cu(II) and Zn(II) ion have been synthesized and characterized. In the present study the ligand AZPCPU shows bidentate character and coordinates symmetrically with metal takes place through nitrogen and o...

A series of novel compounds 3a-j and 6a-j with primaquine and hydroxyl or halogen substituted benzene moieties bridged by urea or bis-urea functionalities were designed, synthesized and evaluated for biological activity. The title compounds were prepared using benzotriazole as the synthon, throu...

A series of new urea derivatives (3a-p) have been synthesized from readily available isocyanates and amines in good to high yields. All synthesized compounds were fully characterized using 1H NMR, 13C NMR, IR, and mass spectrometry. Additionally, the structure of the compound (3n) was confirmed ...

N-2-pyridyl-N′-3-methoxyphenylthiourea, PyTu3OMe, triclinic, P-l, a=8.6590(16), b=8.7489(16), c=10.0540(15)Å, α=90.255(9), β=66.765(8), γ=68.547(7)°, V=641.40(19)Å3 and Z=2; N-2-(3-picolyl)-N′-3-methoxyphenylthiourea, 3PicTu3OMe, triclinic, P-1, a=6.9100(9), b=12.7370(16), c=16.4710(14)A...

N-2-(4-picolyl)-N′-2-chlorophenylthiourea, 4PicTu2Cl, monoclinic, P21/c, a=10.068(5), b=11.715(2), c=11.185(6)Å,β=96.88(4)°, V=1309.8(2)Å3 and Z=4; N-2-(6-picolyl)-N′-2-chlorophenylthiourea, 6PicTu2Cl, triclinic, P-1, a=7.4250(8), b=7.5690(16), c=12.664(3)Å,α=105.706(17), β=103.181(13),...

2-(2-methoxyphenyl)-1H-imidazo [4, 5-f][1, 10] phenanthroline (1) and its Ru(bipy)22+ complex (2) were synthesized and the anion sensing properties of the two were well evaluated and compared by fluorescence titration experiments. Both 1 and 2 were fluorescent in DMSO solution and possessed an a...

A new compound 1-(4-methoxyphenyl)-3-(pyridine-3-ylmethyl)thiourea was synthesized and structure of compound (3) was elucidated by FT-IR, 1H-NMR, and mass spectrophotometer. The computational quantum chemical studies of compound (3) like, IR, UV, NBO analysis were performed by DFT with B3LYP exc...

Three new thiourea ligands derived from the condensation of aroyl- and aryl-isothiocyanate derivatives with 2,6-diaminopyridine, named 1,1′-(pyridine-2,6-diyl)bis(3-(benzoyl)thiourea) (L1), 1,1′-(pyridine-2,6-diyl)bis(3-(2-chlorobenzoyl)thiourea) (L2) and 1,1′-(pyridine-2,6-diyl)bis(3-(4-chlo...