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Library 4mec 4-MEC is a substituted cathinone with stimulant and entactogen properties, structurally related to mephedrone. It has been marketed alone o…

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Library 4mmc Mephedrone is typically sold as white or off-white powder or crystals that clump from moisture. GC-MS surveys show frequent adulteration wi…

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Library 4mpm Phendimetrazine is a phenmetrazine prodrug prescribed for short-term obesity management. It metabolizes into active phenmetrazine, which ha…

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Library 4mta 4-MTA is an extremely dangerous substance with a high fatality rate. It acts as both a potent serotonin releaser and MAO-A inhibitor, creat…

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Library 5aedb Practically no human research exists; all parameters are based on scattered user reports of 5-AEDB sold online between 2019-2024 and extrap…

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Library 5apb 5-APB is a synthetic entactogen of the benzofuran and substituted amphetamine classes that produces MDA-like empathogenic and stimulating e…

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Library 5apdb An entactogenic amphetamine stimulant with similar structure and effects to MDMA. An analogue of MDA, it is a highly selective serotonin re…

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Library 5apdi 5-APDI (IAP) is a potent but weakly selective serotonin-releasing agent with IC50 values of 82 nM for serotonin, 1,848 nM for dopamine, and…

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Library 5clamt 5-Cl-AMT (5-chloro-α-methyltryptamine; PAL-542) combines three properties with harm-reduction implications: it is a serotonin-dopamine rele…

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Library 5eapb Extremely limited human data; doses above 140 mg strongly discouraged. Fatal case reported at ~500 mg combined with MDAI (blood concentrati…

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Library 5iai Animal studies show markedly lower serotonergic neurotoxicity than p-iodoamphetamine, but single 40 mg/kg doses still reduced hippocampal 5…

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Library 5it An empathogenic stimulant with a very long duration, prone to cause overheating and potentially quite dangerous. Related to αMT, though des…

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Library 5mapb 5-MAPB is a synthetic entactogen of the substituted benzofuran and amphetamine classes. It is the N-methylated form of 5-APB, structurally…

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Library 5mapdb 5-MAPDB is a dihydrobenzofuran entactogen first characterized by Monte et al. (1993) and pharmacologically profiled by Rickli et al. (2015)…

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Library 5mapdi 5-MAPDI is an entactogenic amphetamine derivative which is structurally related to MDMA as well as to dihydrobenzofuran derivatives such as…

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Library 5meoamt One of the most potent psychedelic tryptamines known, requiring extreme caution with dosing. Highly dose-sensitive with medical emergencies…

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Library 5meodibf First identified in December 2015 on European NPS markets. Benzofuran analogue of 5-MeO-DiPT with several-fold lower potency. Higher oral d…

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Library 5meodipt 5-MeO-DiPT is a synthetic psychedelic of the tryptamine class first described by Alexander Shulgin in 1980. It is considered an atypical ps…

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Library 5meomipt 5-MeO-MiPT is a synthetic psychedelic and entactogenic substance of the tryptamine class. Its synthesis and human psychopharmacology were f…

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Library 5methylethylone 5-Methylethylone is a synthetic cathinone of the amphetamine and phenethylamine chemical classes, structurally related to ethylone. It has…