نتایج جستجو برای: triazines
تعداد نتایج: 1203 فیلتر نتایج به سال:
We report here the host-guest behaviour of two isoelectronic [Fe4L4](8+) tetrahedral cages that differ only in the nature of their face-capping ligand and possess either triazine (L1) or benzene (L2) cores. Crystallography reveals these hosts to be flexible and adaptable, while NMR spectroscopy shows them to be selective and discriminating in their host-guest behaviour.
Prometryne is a methylthio-s-triazine herbicide. Significant trace amounts are found in the environment, mainly in water, soil, and food plants. The aim of this study was to establish brain and blood prometryne levels after single oral dose (1 g kg-1) in adult male and female mice. Prometryne was measured using the GC/MS assay at 1, 2, 4, 8, and 24 h after prometryne administration. Peak brain ...
* The views presented in this article do not necessarily reflect those of the United States Food and Drug Administration. 1 This chemistry background paper briefly summarizes key information on melamine related to past contamination incidents, uses, chemical structures and physicochemical properties (including the related triazines: cyanuric acid, ammeline and ammelide), manufacturing processes...
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