Results 21 to 30 of about 3,261,533 (299)
Redox properties of alkyl-substituted 4-aryl-2,4-dioxobutanoic acids [PDF]
Journal of the Serbian Chemical Society, 2017 Redox properties of a set of aryldiketo acids (ADKs), small organic molecules that comprise 2,4-dioxobutanoic acid moiety, were studied. Along with well-known HIV-1 integrase (IN) inhibition, ADKs exert widespread biological activities.
Cvijetić Ilija N. +6 more
doaj +1 more source
Química Nova, 2009 The pKa values of the 6-[2´-(6´-methyl-benzothiazolylazo)]-1,2-dihydroxy-3,5-benzenedisulfonic acid (Me-BDBD) have been determined at 25 °C, in 0.10 mol L-1 NaCl medium by spectrophotometric method.
Regina Terumi Yamaki +5 more
doaj +1 more source
Determination of the pKa for caffeic acid in mixed solvent using the net analyte signal method and ab initio theory [PDF]
Journal of the Serbian Chemical Society, 2019 Due to the biological effects of phenolic acid components, polyphenol-rich foods are a significant part of human and animal diets. In this study, the acidity constants of caffeic acid (3,4-dihydroxycinnamic acid) in binary mixtures of ethanol–water were ...
Dadras Abbas +6 more
doaj +1 more source
Spectrophotometric Determination of Acidity Constants of Thiamine in Water, Water-Triton X-100 Micellar Media Solutions [PDF]
Iranian Journal of Chemistry & Chemical Engineering, 2008 In this work the acidity constants of Thiamine in water and water-Triton X-100 micelle media solutions, at 25 °C, have been determined spectrophotometrically.
Mohammad Goodarzi, Tahmineh Goodarzi
doaj
The ammonolysis of esters in liquid ammonia [PDF]
, 2013 The rates of ammonolysis of alkyl benzoate and phenylacetate esters in liquid ammonia increase with the acidity of the leaving group alcohol and show relatively large Brønsted βlg values of −1.18 and −1.34, respectively, when plotted against the aqueous ...
Atherton, John +2 more
core +1 more source
, 2020 Numerous acids and bases influence indoor air quality. The most abundant of these species are CO2 (acidic) and NH3 (basic), both emitted by building occupants. Other prominent inorganic acids are HNO3 , HONO, SO2 , H2 SO4 , HCl, and HOCl.
Nazaroff, William W, Weschler, Charles J
core +1 more source
Spectrophotometric Determination of Acidity Constants of Some Anthraquinone Derivatives in Methanol-Water Mixtures [PDF]
Iranian Journal of Chemistry & Chemical Engineering, 1999 A spectrophotometric method is used to determine the acidity constants of some derivatives of 9,10-anthraquinone in binary methanol-water mixtures at 25 °C. There is a linear inverse relationship between pKa of all acids and the mole fraction of methanol
Mohammad Mahdi Khodaei +1 more
doaj
Journal of Lipid Research, 1992 Cholic acid, deoxycholic acid, chenodeoxycholic acid, and ursodeoxycholic acid were purified by a foam fractionation method. Using thermogravimetric analysis, the attached water molecule was found to be completely removed from solids of the latter three ...
Y Moroi, M Kitagawa, H Itoh
doaj +1 more source
Monolayer- and crystal-type MoO3 catalysts: Their catalytic properties in relation to their surface structures [PDF]
, 1978 Various MoO3 catalysts have been prepared by means of adsorption of molybdenum on supports from molybdate solutions or from the gas phase. Complete monomolecular layers of Mo6+ oxide can be prepared on the carriers Al2O3, Cr2O3, TiO2, CeO2, and ZrO2 ...
Fransen, Thijs +2 more
core +5 more sources
Biophysical Features of Bacillithiol, the Glutathione Surrogate of Bacillus subtilis and other Firmicutes [PDF]
, 2013 Bacillithiol (BSH) is the major low-molecular-weight (LMW) thiol in many low-G+C Gram-positive bacteria (Firmicutes). Evidence now emerging suggests that BSH functions as an important LMW thiol in redox regulation and xenobiotic detoxification, analogous
Arbach, Miriam +5 more
core +1 more source