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

Library cyclazocine Cyclazocine is a mixed opioid agonist/antagonist related to dezocine, pentazocine and phenazocine. It is in the benzomorphan and benzazocin…

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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 (also known as Propoxyphene and Darvon) is a synthetic opioid of the phenylpropylamine chemical class. Like other substa…

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Library diacetylmorphine Heroin, also known as diacetylmorphine and diamorphine among other names, is a morphinan opioid substance synthesized from the dried latex…

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Library dihydro7hydroxy_mitragynine

Library dihydrocodeine Dihydrocodeine is a semi-synthetic opioid analgesic of the morphinan class. Developed in Germany in 1908 and first marketed in 1911, it was…

Library diphenoxylate Diphenoxylate is a centrally active opioid drug of the phenylpiperidine series that is used as a combination drug, prescribed in the United…

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 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, also known as EA-4941 or CS-4640, is a benzimidazole opioid, first reported in 1957, that has been shown to have approximately…

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

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Library fentanil Fentanyl is a highly potent synthetic opioid of the piperidine family, used primarily as pain medication. It is 50 to 100 times more potent…