15117-53-0Relevant academic research and scientific papers
Elucidation of sulfidation state and hydrodesulfurization mechanism on ruthenium-cesium sulfide catalysts using 35S radioisotope tracer methods
Ishihara, Atsushi,Lee, Jeayoung,Dumeignil, Franck,Higashi, Ryuichirou,Wang, Anjie,Qian, Eika W.,Kabe, Toshiaki
, p. 59 - 68 (2003)
A number of approaches aiming at performing deep HDS of light gas oils have been studied. For deep HDS reactions, the development of very efficient new HDS catalysts, with knowledge of the active phase and the HDS reaction mechanism, is required. Alumina-supported Ru-Cs catalysts were persulfided using [35S]H2S pulse tracer method to evaluate their sulfidation state. HDS reactions of dibenzothiophene were performed and the mobility of 35S introduced during the presulfidation state was studied using these previously 35S-labeled catalysts. The amount of labile sulfur was much smaller than the total amount of sulfur accommodated on the catalyst (Stotal). The labile sulfur was not formed on RuCs catalysts until the HDS reaction proceeded. Stotal increased with increasing Cs content. Labile sulfur was difficult to form over the Ru-Cs/Al2O3 catalysts during the presulfidation stage.
AGENTS WITH SELECTIVE K-OPIOID RECEPTOR AFFINITY
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Page/Page column 20-21, (2008/06/13)
Compounds and compositions that are salvinorin A and salvinorin B derivatives that demonstrate selectivity and/or potency for the k-opioid receptor (KOR), allowing for their use as medicines, as well as chemical probes (both radiolabeled and cold) for fields utilizing the techniques of radiolabeled binding assays.
