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Library 2fluorofentanyl

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Library 2methylmethoxyacetylfentanyl

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Library 3fluorofentanyl

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Library 3methylbutyrfentanyl

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Library 3methylcrotonylfentanyl

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Library 3methylfentanyl 3-Methylfentanyl is an opioid analgesic that is an analog of fentanyl. 3-Methylfentanyl is one of the most potent opioids, estimated to be…

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Library 3methylfuranylfentanyl

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Library 3phenylpropanoylfentanyl

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Library 4clibf Potency of 4Cl-iBF is not precisely established but in vitro binding suggests it is weaker than fentanyl yet far more potent than morphine…

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Library 4fcyclopropylbenzylfentanyl

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Library 4fibf 4-Fluoroisobutyrylfentanyl (also known as 4-FIBF and p-FIBF) is an opioid analgesic that is an analog of butyrfentanyl and structural isome…

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Library 4fluorobutyrfentanyl 4-Fluorobutyrfentanyl is a potent synthetic opioid and analog of butyrfentanyl that has been sold online as a designer drug. It is closely…

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Library 4meobutyrfentanyl 4-MeO-Butyrfentanyl is a rare synthetic opioid and analogue of fentanyl, distinct from the related compound butyrfentanyl. It is classified…

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Library 4methoxybutyrfentanyl 4-MeO-BF is a highly potent fentanyl analogue first identified in Europe in 2015. Fatal blood concentrations have ranged 2-18 ng/mL, only m…

Library acetylfentanyl Acetylfentanyl is a synthetic opioid of the anilidopiperidine class and a structural analog of fentanyl. Originally described in the 1960s…

Library acrylfentanyl Acrylfentanyl is a synthetic opioid of the anilinopiperidine class and a structural analog of fentanyl that has been sold online as a desig…

Library alfentanil Alfentanil is a short-acting synthetic opioid analgesic approximately one-quarter to one-tenth the potency of fentanyl, with a rapid onset…

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Library alphamethyl_fentanyl Alpha-methylfentanyl is a monocarboxylic acid amide resulting from the formal condensation of the aryl amino group of N-phenyl-1-(1-phenylp…

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Library benzodioxolefentanyl An analogue of Fentanyl that is not found in literature.

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Library benzodioxolfentanyl