K. H. Wehr

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TLC- and GLC data on the benzophenone obtained after acid hydrolysis of prazepam are given. A differentation from the benzophenones of five therapeutically used benzodiazepines was possible. The structure of the benzophenone was verified by NMR-spectroscopy as 2-(cyclopropyl-methylamino)-5-chlorbenzophenone. Mit Hilfe der Dünnschichtchromatographie und der(More)
During the period of survey, the number of narcotic drug seizures by the law, especially cannabis resin, has increased considerably. The details on this development are presented. The following main analytical results were obtained: the median concentration of THC in cannabis resin has increased up to 8.6%, in cannabis plants the THC content has fluctuated(More)