Furanylnorfentanyl is an inactive synthetic opioid analgesic drug precursor. It is an analog of fentanyl.[1][2][3][4][5]
^Goggin, Melissa M. (2017). "Identification of unique metabolites of the designer opioid furanyl fentanyl". Journal of Analytical Toxicology. 41 (5): 367–375. doi:10.1093/jat/bkx022. PMID 28369517.
^Palmquist, Kaitlyn B. (2020). "Quantification of furanylfentanyl and its metabolites in human and rat plasma using LC–MS-MS". Journal of Analytical Toxicology. 44 (6): 589–595. doi:10.1093/jat/bkaa013. PMID 32064536.
^Larabi, Islam Amine (2020). "Hair testing for 3-fluorofentanyl, furanylfentanyl, methoxyacetylfentanyl, carfentanil, acetylfentanyl and fentanyl by LC–MS/MS after unintentional overdose". Forensic Toxicology. 38 (1): 277-286. doi:10.1007/s11419-019-00502-0. S2CID 207916035.
^Daniulaityte, Raminta (2019). "Street fentanyl use: Experiences, preferences, and concordance between self-reports and urine toxicology". International Journal of Drug Policy. 71: 3–9. doi:10.1016/j.drugpo.2019.05.020. PMC 6868314. PMID 31146200. S2CID 171094309.
^Shoemaker, Alyssa K. (2020). Cholinesterase Based System for Fentanyl Detection (MS thesis). State University of New York at Albany.
and 4 Related for: Furanyl norfentanyl information
(2017). "Identification of unique metabolites of the designer opioid furanyl fentanyl". Journal of Analytical Toxicology. 41 (5): 367–375. doi:10.1093/jat/bkx022...
analysis of carfentanil, 3-methylfentanyl, 2-furanyl fentanyl, acetyl fentanyl, fentanyl and norfentanyl in postmortem and impaired-driving cases". Journal...
including: Salvinorin A ((2S,4aR,6aR,7R,9S,10aS,10bR)-9-(acetyloxy)-2-(3-furanyl)dodecahydro-6a,10b-dimethyl-4,10-dioxo-2H-naphtho[2,1-c]pyran-7-carboxylic...
hydrolysis yielding phenethanol. This changes the parent skeletal name to norfentanyl. The second and third modifications are the removal and addition of a...