نتایج جستجو برای: amino benzoic acid

تعداد نتایج: 819082  

2012
Paul Kosma Edgar Selzer Kurt Mereiter

The mol-ecular structure of the title compound, C20H18N2O5S·C3H7NO, represents an essentially planar 5-benzyl-idene-thia-zolidine moiety (r.m.s. deviation from planarity without ring substituents = 0.095 Å) to which the 4-amino-benzoic acid fragment is inclined at 76.23 (1)°. In the crystal, the benzoic acid mol-ecules are arranged in layers parallel to [001] which are built up from inversion d...

Journal: :iranian journal of chemistry and chemical engineering (ijcce) 2012
muhammad aqeel ashraf, mohd jamil maah, ismail yusuf,

cr(iii), co(ii), ni(ii), cu(ii) and zn(ii) salts of 2-(4-nitrophenylaminocarbonyl)benzoic acid were characterized by physical, analytical and spectroscopic studies and checked for their  in-vitro antimicrobial activity against three bacterial strains, mycobacterium smegmatis (gram +ve), escherichia coli (gram -ve), pseudomonas aeuroginosa (gram -ve) and three fungal strains, nigrospora oryzae, ...

Journal: :Microbiology 2001
A K Pearce I R Booth A J Brown

The mechanisms by which the weak acid preservative benzoic acid inhibits the growth of Saccharomyces cerevisiae have been investigated. A reduction in the pyruvate kinase level, which decreases glycolytic flux, did not increase the sensitivity of yeast to benzoic acid. However, a decrease in 6-phosphofructo-1-kinase (PF1K), which does not affect glycolytic flux, did increase sensitivity to benz...

2008

Saccharin Chem. Abstr. Serv. Reg. No.: 81-07-2 Deleted CAS Reg. Nos: 474-91-9; 61255-27-4; 126987-83-5 Chem. Abstr. Name: 1,2-Benzisothiazol-3(2H)-one, 1,1-dioxide IUPAC Systematic Name: 1,2-Benzisothiazolin-3-one, 1,1-dioxide Synonyms: Acid saccharin; anhydro-ortho-sulfaminebenzoic acid; 3-benzisothiazolinone 1,1-dioxide; benzoic sulfimide; benzoic sulphinide; benzosulfimide; benzosulfinide; o...

Journal: :Organic & biomolecular chemistry 2012
Jin Zhou Qing Chang Li-Hua Gan Yun-Gui Peng

The roles of benzoic acid and water on the Michael reaction of pentanal and nitrostyrene catalyzed by diarylprolinol silyl ether are revealed by density functional theory calculations. The calculations demonstrate that the benzoic acid is ready to attack the catalysts and form a hydrogen bond between the hydrogen atom of the COOH of benzoic acid and one of the N atoms of the catalyst. The compl...

Journal: :International journal of pharmaceutics 2004
Vimon Tantishaiyakul Narubodee Phadoongsombut Wibul Wongpuwarak Jatupit Thungtiwachgul Damrongsak Faroongsarng Kamonthip Wiwattanawongsa Yon Rojanasakul

A novel technique based on Attenuated Total Reflectance Fourier Transform Infrared (ATR-FTIR) spectroscopy was used to study the transport of benzoic acid ion-pairs/salts in silicone membranes. The benzoic acid ion-pairs were prepared using various counter-ions with different degrees of lipophilicity, e.g. triethylamine (TA), diethylamine (DE), tert-butylamine (t-BA), 2-amino-2-methyl-propanol ...

Journal: :international journal of environmental research 2010
h. sid kalal j. rafiei f. bani a.r. khanchi h. hoveidi

an ion chromatography (ic) method for simultaneous determination of benzoic, salicylic and sorbic acids was developed. in this method the samples were purified by solid-phase extraction. the analytes were then eluted with methanol from c18 cartridge. the separation was performed on ion-exclusion column by an isocratic elution with 0.25 mmol /l sulfuric acid solution containing 20% (v/v) acetone...

Journal: :The Journal of clinical investigation 1948
A de Vries B Alexander Y Quamo

The conjugation of benzoic acid with glycine, resulting in the formation of hippuric acid, takes place in liver (1) and kidney (2). The urinary output of this conjugate after the administration of benzoate is used to measure this aspect of hepatic function (3). Theoretically, decreased hippuric acid formation may be due to hepatic and/or renal disease or to an inadequate supply of glycine. In t...

Journal: :Egyptian Journal of Chemistry 2021

This research included synthesizing a series of heterocyclic compounds where the compound 2-chloroacetohydrazide was synthesized from ethyl chloroethanoate with Hydrazine hydrate 95%. The reaction carried out in cold condition. 2-(pyrimidin-2-ylamino)acetohydrazide prepared by A1 2-amino pyrimidine absolute ethanol using Potassium hydroxide (KOH); then 2-(pyrimidin-2-ylamino) acetohydrazide dif...

نمودار تعداد نتایج جستجو در هر سال

با کلیک روی نمودار نتایج را به سال انتشار فیلتر کنید