Rojkiewicz, M; Majchrzak, M; Celiński, R; Kuś, P; Sajewicz, M. Identification and physicochemical characterization of 4-fluorobutyrfentanyl (1-((4-fluorophenyl)(1-phenethylpiperidin-4-yl)amino)butan-1-one, 4-FBF) in seized materials and post-mortem biological samples Drug Test. Anal., 1 Mar 2017, 9 (3), 405-414. 614 kB. https://doi.org/10.1002/dta.2135 LC,MS,NMR,IR
Ohta, H; Suzuki, S; Ogasawara, K. Studies on Fentanyl and Related Compounds IV. Chromatographic and Spectrometric Discrimination of Fentanyl and its Derivatives J. Anal. Toxicol., 1 Jul 1999, 23 (4), 280-285. 354 kB. https://doi.org/10.1093/jat/23.4.280 #7 MS,IR,TLC
DEA. Temporary Placement of Seven Fentanyl-Related Substances in Schedule I Federal Register, 1 Feb 2018. #9823
EMCDDA. New drugs in Europe, 2014, European Monitoring Centre for Drugs and Drug Addiction, Lisbon, 1 Jul 2015. 879 kB.
Brandt, SD; Kavanagh, PV. Addressing the challenges in forensic drug chemistry Drug Test. Anal., 1 Mar 2017, 9 (3), 342-346. 120 kB. https://doi.org/10.1002/dta.2169
Kronstrand, R; Guerrieri, D; Vikingsson, S; Wohlfarth, A; Gréen, H. Fatal poisonings associated with new psychoactive substances In New Psychoactive Substances: Pharmacology, Clinical, Forensic and Analytical Toxicology; Maurer, HH; Brandt, SD, Eds., Springer, Berlin, Heidelberg, 1 Jan 2018; pp 495–541. 477 kB. https://doi.org/10.1007/164_2018_110 #para-Fluorobutyrylfentanyl
Kraemer, M; Boehmer, A; Madea, B; Maas, A. Death cases involving certain new psychoactive substances: A review of the literature Forensic Sci. Int., 1 May 2019, 298, 186–267. 6.7 MB. https://doi.org/10.1016/j.forsciint.2019.02.021 #4-fluorobutyrfentanyl
Armenian, P; Vo, KT; Barr-Walker, J; Lynch, KL. Fentanyl, fentanyl analogs and novel synthetic opioids: A comprehensive review Neuropharmacology, 1 May 2018, 134, 121–132. 847 kB. https://doi.org/10.1016/j.neuropharm.2017.10.016 #4-Fluorobutyrylfentanyl
Anon. INCB: Fentanyl-related substances with no known legitimate use 24 Jun 2018, n/a. 189 kB. #18