@article{ref1,
title="Identification of a novel fentanyl analogue: p-hydroxy-butyrylfentanyl",
journal="Drug testing and analysis",
year="2019",
author="Oldenhof, Sander and Ten Pierick, Angela and Bruinsma, Jildert and Eustace, Stephen and Hulshof, Janneke and van den Berg, Jorrit and Hoitink, Marnix",
volume="ePub",
number="ePub",
pages="ePub-ePub",
abstract="The use of new psychoactive substances (NPS) has become an important worldwide concern. In particular the use of highly potent fentanyl analogues forms a great health threat to users. In this publication, we detail the characterization of a new fentanyl analogue N-(4-hydroxyphenyl)-N-(1-phenethylpiperidin-4-yl)-butyramide (p-hydroxy-butyrylfentanyl) encountered in drug casework in the Netherlands. Characterization was performed using ultra-high performance liquid chromatography-quadrupole-time-of-flight mass spectrometry (UHPLC-Q-TOF-MS), gas chromatography-mass spectrometry (GC-MS), nuclear magnetic resonance (NMR) spectroscopy, Fourier transform infrared (FTIR) spectroscopy and X-ray fluorescence (XRF).<br><br>This article is protected by copyright. All rights reserved.<p /> <p>Language: en</p>",
language="en",
issn="1942-7603",
doi="10.1002/dta.2695",
url="http://dx.doi.org/10.1002/dta.2695"
}