نتایج جستجو برای: guanidine
تعداد نتایج: 3719 فیلتر نتایج به سال:
The most commonly used protocol of the RNA isolation, the guanidine thiocyanate method, was unsuitable for recalcitrant plant tissues containing a large amount of storage proteins and secondary metabolites. We demonstrated that RNA could bind to the silica particles, which have been used successfully in DNA isolation from various sources, under a high concentration of NaCl in the presence of et...
Novichoks, also known as A-series agents, are nerve agents developed in the Soviet Union during Cold War. Once obscure chemicals, they garnered a great deal of attention after their employment attempted assassinations Sergei and Yulia Skripal 2018 Alexei Navalny 2020. Novichok were not originally featured schedules Chemical Weapons Convention (CWC), which intended to support treaty’s verificati...
A cell-based high-throughput screen that assessed the cellular stability of a tumor suppressor protein PDCD4 (Programmed cell death 4) was used to identify a new guanidine-containing marine alkaloid mirabilin K (3), as well as the known compounds mirabilin G (1) and netamine M (2). The structures of these tricyclic guanidine alkaloids were established from extensive spectroscopic analyses. Comp...
In the title compound, C35H32N4, the C-N bond lengths in the guanidine part are 1.286 (3), 1.387 (2) and 1.414 (2) Å, indicating double- and single-bond character. The N-C-N angles are 114.48 (17), 118.78 (17) and 126.72 (17)°, showing a deviation of the CN3 plane from an ideal trigonal-planar geometry. The carbazole ring system is almost planar (r.m.s. deviation = 0.002 Å). In the crystal, mol...
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