Identification and characterization of new designer drug 4-fluoro-PV9 and [alfa]-PHP in the seized materials

In this study, we present identification and physicochemical characterization of new cathinone derivatives, 4-fluoro-PV9 and already known a-PHP in seized materials. Although the disclosure of a-PHP from an illegal product had been reported and characterized to some extent, the data on a-PHP are also presented together with those of 4-fluoro-PV9. The data of characterization for the two compounds were obtained by high-performance liquid chromatography (HPLC)–mass spectrometry and HPLC– diode array detection, electrospray ionization/ion trap mass spectrometry in MS2 and MS3 modes, gas chromatography– mass spectrometry, thermogravimetric analysis, differential scanning calorimetry, Fourier transform infrared spectroscopy, ultraviolet-visible spectroscopy, and nuclear magnetic resonance spectroscopy. To our knowledge, this is the first report for identification and detailed characterization of 4-fluoro-PV9 circulated on the illegal drug market