Orthofluorofentanyl (o-fluorofentanyl, 2-fluorofentanyl) is an opioid analgesic that is an analog of fentanyl and has been sold online as a designer drug. While the structural isomer p-fluorofentanyl was one of the first illicit fentanyl analogues identified in 1981, Orthofluorofentanyl did not appear on the illicit market until August 2016.
Orthofluorofentanyl (o-fluorofentanyl, 2-fluorofentanyl) is an opioid analgesic that is an analog of fentanyl and has been sold online as a designer drug. While the structural isomer p-fluorofentanyl was one of the first illicit fentanyl analogues identified in 1981, Orthofluorofentanyl did not appear on the illicit market until August 2016.
Source: Wikipedia "Orthofluorofentanyl" · CC BY-SA 4.0
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