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831.358  Articles
1 of 83.137 pages  |  10  records  |  more records»
Kinetic oxidation of Salbutamol by N-Chlorosaccharin, in aqueous Acetic acid medium, shows first-order dependence on [NCSA] and [H+], and fractional order on [Solbutamol]. The variation of [H+] and [Sacharin](reaction product) has a remarked effect on the... see more

The objective of the research work is to synthesize potential genotoxic impurity 5-cyano-2-((4-fluorophenyl) (hydroxyl) benzyl 4-methyl benzene sulfonate and to develop suitable UPLC method to quantify the above genotoxicimpurity in Escitalopram Oxalate a... see more

Polybutylene itaconate (PBI) for modification with divinyl benzene (DVB) and glycerol has been synthesized at 180 °C for 3 h via polycondensation of itaconic acid (IA) and butanediols using catalyst of Ti(OBu)4. Modification on PBI was done with addition ... see more

A number of the quaternary ammonium salts previously unknown with polyfunctional pyrazole base have been obtained. The structure of these pyrazoles contains highly polar ammonium, ureide and hydroxymethyl groups. The compounds under study were synthesized... see more

N-Benzenesulfonyl-p-Coumaramide has been synthesized from  p-qumarid acid. This research aimed to synthesized  N-Benzenesulfonyl-p-Coumaramidefrom p-qumarid acid. Targeted coumpound obtained  from two steps reaction. Whice were amidation an... see more

Host-Guest complexation of calixarene-bis-hydroxymethylenediphosphonic acid with 17 amino acids in water solution had been studied by the RP HPLC and molecular modelling methods. It had been shown the binding constants of the complexes are depended on the... see more

Rice bran is a by-product of rice processing industry, with high levels of phytic acid or phytate. Considering phytic acid antioxidant activity, its various applications and its high concentration in rice bran, this study had the objective of evaluating t... see more

The pKa values of twelve ß-hydroxy-ß-arylalkanoic acids and ibupro­fen were determined using a modified RP-HPLC method. The stationary phase was octadecyl modified (C-18) silica gel, and the mobile phases were mixtures of methanol and one of ten diff... see more

The Host-Guest complexation of 5,17-bis-(N-tolyliminomethyl)-25,27-dipropoxycalix[4]arene with a number of aromatic carboxylic acids has been studied by reversed-phase high-performance liquid chromatography. The mobile phase was acetonitrile-water (80/20,... see more

1 of 83.137 pages  |  10  records  |  more records»