Library benzylfentanyl Benzylfentanyl (R-4129) is a fentanyl analog. It was temporarily placed in the US Schedule I by emergency scheduling in 1985 due to concern…

Library butyrfentanyl Butyrfentanyl is a potent short-acting synthetic opioid and analog of fentanyl, possessing approximately one quarter of its parent compound…

Library carfentanil Carfentanil or carfentanyl, formerly sold under the brand name Wildnil, is an extremely potent opioid analgesic formerly used in veterinary…

Library carfentanyl Carfentanil or carfentanyl, formerly sold under the brand name Wildnil, is an extremely potent opioid analgesic formerly used in veterinary…

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Library cis3methylfentanyl

Library crotonylfentanyl Crotonylfentanyl is an opioid analgesic that is an analog of fentanyl and structural isomer of cyclopropylfentanyl and has been sold online…

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Library cyclopentylfentanyl An analogue of fentanyl that is unknown in literature, seems to be less potent than its former being Acetyl-Fentanyl. Yet reports have yet…

Library cyclopropylfentanyl Cyclopropylfentanyl is an opioid analgesic that is an analog of fentanyl and has been sold as a designer drug. Between June and December 20…

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Library despropionyl2fluoro_fentanyl

Library fentanyl Fentanyl is a synthetic opioid of the anilidopiperidine class first synthesized by Paul Janssen in 1960 and approved for medical use in the…

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Library fentanyl_butanamide_analogue

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Library fentanyl_methylene_homolog

Library furanylbenzylfentanyl

Library furanylfentanyl Furanylfentanyl is a potent synthetic opioid analgesic of the anilinopiperidine class and a structural analogue of fentanyl. Classified as…

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Library isobutyryl_fentanyl

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Library isobutyrylffentanyl_nbenzyl_analogue

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Library methoxyacetylfentanyl Methoxyacetyl-fentanyl is a highly potent synthetic opioid and fentanyl analogue classified as a depressant research chemical. Like other f…

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Library n2cfentanyl The N-(2C)-fentanyl series, is the 2C family coupled with fentanyl.

Library ocfentanil Ocfentanil is a potent synthetic opioid structurally related to fentanyl that was developed in the early 1990s as one of a series of potent…

Library ocfentanyl Ocfentanil is a potent synthetic opioid structurally related to fentanyl that was developed in the early 1990s as one of a series of potent…