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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 desnitroclonitazene

Library desomorphine Desomorphine is a semi-synthetic opioid of the morphinan class, first synthesized in the early 1930s and marketed by Roche under the trade…

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Library despropionyl2fluoro_fentanyl

Library dextromoramide Dextromoramide, a rare and powerful opioid analgesic approximately three times as potent as morphine with a shorter duration. Generally onl…

Library dextropropoxyphene Dextropropoxyphene was withdrawn from the US and European markets in 2010 due to serious cardiac toxicity, including QT prolongation and fa…

Library diampromide Diampromide is an opioid analgesic from the ampromide family of drugs, related to other drugs such as propiram and phenampromide. It was in…

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Library dihydro7hydroxy_mitragynine

Library dihydrocodeine Dihydrocodeine is a semi-synthetic morphinan opioid analgesic prescribed for pain, or as an antitussive (either alone or compounded with pa…

Library diphenoxylate Diphenoxylate is a centrally active opioid drug of the phenylpiperidine series that is used as a combination drug with atropine for the tre…

Library dipipanone A powerful opioid of equivalent strength to morphine, rarely seen outside of medical environments. Often used to treat severe pain where mo…

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Library dpp26 DPP-26 is the sulfone analogue of dipipanone, structurally related to IC-26 (methiodone, the sulfone analogue of methadone). Early user rep…

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Library ethylene_isotonitazepyne

Library ethylmorphine Ethylmorphine, also known as codethyline and dionine, is a semi-synthetic morphinan opioid first created by Merck in 1884 and used as a wea…

Library etodesnitazene Etodesnitazene is a benzimidazole-derived opioid analgesic drug, which was originally developed in the late 1950s alongside etonitazene and…

Library etonitazene Etonitazene is an extremely potent synthetic opioid discovered in 1957, approximately 1,000-1,500 times stronger than morphine in animal st…

Library etonitazepyne Etonitazepyne is a benzimidazole derivative with potent opioid effects which has been sold over the internet as a designer drug and linked…

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