Results 11 to 20 of about 234,249 (389)
Low-level Determination of Residual Methyl Methane Sulfonate and Ethyl Methane Sulfonate in Pharmaceuticals by Gas Chromatography with Mass Spectrometry [PDF]
A capillary gas chromatographic method using mass spectrometric detection was developed and validated for the trace analysis (ppm level) of methyl methane sulfonate and ethyl methane sulfonate in pharmaceutical drug substances.
M. Sarat +6 more
doaj +2 more sources
Barium 5-(tert-butyl)-2,3-dihydroxybenzenesulfonate
Catechols and their derivatives attract great scientific interest due to the broad spectrum of their functional properties, including complexation, redox behavior, association ability and antioxidant activity.
Lyubov G. Rubicheva, Daniil A. Lukyanov
doaj +1 more source
Synthesis and Surface Properties of Oleyl Alcohol Sulfonate Branched-chain Surfactants
Purposes Waste edible oil is a potential renewable resource, so it is of great significance to convert it into high value-added fine chemical products.
Zimeng WEI +4 more
doaj +1 more source
Crystallographic studies of monosulfonated azo dyes have concentrated on the salt forms that contain the azo anion. Here we present a study that compares the structures of these anions with protonated free acid forms and with doubly deprotonated dianion ...
Alan R. Kennedy +7 more
doaj +1 more source
While phenols are frequent and convenient aryl sources in cross-coupling, typically as sulfonate esters, the direct cross-Ullmann coupling of two different sulfonate esters is unknown.
K. Kang, Liangbin Huang, D. Weix
semanticscholar +1 more source
Erika F Houtz, Shan Yi, Jennifer A Field
exaly +2 more sources
Crystal structure of phenyl 2,4,5-trichlorobenzenesulfonate
The title compound, C12H7Cl3O3S, was synthesized via a nucleophilic substitution reaction between phenol and 2,4,5-trichlorobenzenesulfonyl chloride.
Sean Riley +3 more
doaj +1 more source
Perfluorooctane sulfonate is related to male reproductive dysfunction in rats and humans. However, the underlying mechanism remains unknown. Here, we reported the effects of short-term exposure to perfluorooctane sulfonate on the regeneration of Leydig ...
Baiping Mao +7 more
doaj +1 more source
Sulfonated (SO3H-bearing) activated carbon (AC-SO3H) was synthesized by an aryl diazonium salt reduction process. The obtained material had a SO3H density of 0.64 mmol·g-1 and a specific surface area of 602 m2·g-1.
Xiao-Yan Liu +7 more
doaj +1 more source

