Results 41 to 50 of about 5,028,792 (285)

Uncertainty evaluation for determination of anesthetics residues and their metabolites in aquatic products by high-performance liquid chromatography-tandem mass spectrometry

open access: yesShanghai yufang yixue, 2022
ObjectiveThe study aimed to evaluate the measurement uncertainty in the determination of five cacaine anesthetics and their metabolites residues by high-performance liquid chromatography-tandem mass spectrometry (LC-MS/MS).MethodsThrough the ...
ZHANG Luwen   +4 more
doaj   +1 more source

A shortcut to identifying small molecule signals that regulate behavior and development in Caenorhabditis elegans [PDF]

open access: yes, 2009
Small molecule metabolites play important roles in Caenorhabditis elegans biology, but effective approaches for identifying their chemical structures are lacking.
A. H. Ludewig   +23 more
core   +3 more sources

MICROBIOLOGICAL ASSAYS FOR p-AMINOBENZOIC ACID [PDF]

open access: yesJournal of Biological Chemistry, 1943
We have developed in this laboratory a microbiological assay for p-aminobenzoic acid, using a mutant strain of Neurospora crassa(1) very generously supplied to us by Dr. G.W. Beadle of Stanford University.
Mitchell, Herschel K.   +2 more
openaire   +2 more sources

Synthesis of Some Substituted Benz/Acetamidines [PDF]

open access: yesمجلة التربية والعلم, 2006
In the present work the synthesis of subtituted acetamidines was achieved. Phthalic anhydride was treated with p-aminobenzoic acid or glycine to give the corresponding acid which then converted to acid chloride with thionyl chloride.
H.S. Aziz
doaj   +1 more source

A dinuclear copper complex: bis(μ-4-aminobenzoato)bis[aqua(1,10-phenanthroline)copper(II)] dichloride bis(4-aminobenzoic acid) dihydrate

open access: yesActa Crystallographica Section E, 2008
The title complex, [Cu2(C7H6NO2)2(C12H8N2)2(H2O)2]·2C7H7NO2·2H2O, consists of a dinuclear [Cu2(C7H6NO2)2(C12H8N2)2(H2O)2]2+ cation, two Cl− anions, two 4-aminobenzoic acid molecules and two disordered water molecules (site occupancy ...
Miao-Ling Huang   +4 more
doaj   +1 more source

PARA-AMINOBENZOIC ACID PRODUCTION BY STAPHYLOCOCCI [PDF]

open access: yesJournal of Experimental Medicine, 1944
1. Strains of staphylococci produce diazotizable materials which can be converted to a dye, and the intensity of the color reaction can be quantitated in the same manner as p-aminobenzoic acid. The sulfonamide-resistant strains which we have studied produce more diazotizable substance than non-resistant strains. 2.
Helen R. Skeggs   +3 more
openaire   +3 more sources

Manganese and Cobalt Salts of Para-Amino-Benzoic Acid Supported on Silica Gel as Oxidizing Catalysts [PDF]

open access: yesIranian Journal of Chemistry & Chemical Engineering, 1994
Para-Aminobenzoic acid is supported on silica gel via reaction of activated silica gel and p-aminobenzoic acid which is then converted to its manganese and cobalt salts.
Mohammad M. Hashemi, Dadkhoda Chazanfari
doaj  

Design of 4-Substituted Sulfonamidobenzoic Acid Derivatives Targeting Coxsackievirus B3

open access: yesLife, 2022
A series of novel 4-substituted sulfonamidobenzoic acid derivatives was synthesized as the structural evolution of 4-(4-(1,3-dioxoisoindolin-2-yl)phenylsulfonamido)benzoic acid, which is the known inhibitor of the enterovirus life cycle.
Anton A. Shetnev   +4 more
doaj   +1 more source

Subinhibitory concentrations of trimethoprim and sulfamethoxazole prevent biofilm formation by Acinetobacter baumannii through inhibition of Csu pilus expression [PDF]

open access: yes, 2017
Acinetobacter baumannii is emerging as a multidrug-resistant nosocomial pathogen of increasing threat to human health worldwide. Pili are important bacterial virulence factors, playing a role in attachment to host cells and biofilm formation.
Feldman, Mario F   +2 more
core   +2 more sources

Synthesis and the biological activity of bis-mefenamidocalixarene

open access: yesЖурнал органічної та фармацевтичної хімії, 2019
Aim. To develop the method for the synthesis of the conjugate of diaminocalix[4]arene with 2-(2,3-dimethylphenyl)aminobenzoic acid (mefenamic acid) – bis-mefenamidocalixarene, determine its structure and physicochemical properties and assess its anti ...
Nataliya M. Chalenko   +2 more
doaj   +1 more source

Home - About - Disclaimer - Privacy