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Library 2fluorofentanyl

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Library 2methylap237

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Library 2methylmethoxyacetylfentanyl

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Library 34methylendioxyu47700

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Library 3fluorofentanyl

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Library 3mam 3-Monoacetylmorphine (3-MAM) or 3-acetylmorphine is a less active metabolite of heroin (diacetylmorphine), the other two being morphine and…

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Library 3me4fibf

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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…

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Library 5chloro_desmethylchlorphine

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Library 5methyl_etodesnitazene