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Library 4fa 4-FA is a synthetic substituted amphetamine that produces a distinctive combination of stimulant and entactogenic effects. It became commer…

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Library 4fea 4-FEA is the ethyl analogue of 4-FA with strong serotonergic properties. Limited formal pharmacological research exists; batch-to-batch var…

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Library 4fluorodeprenyl Metabolizes to 4-fluoroamphetamine and 4-fluoromethamphetamine, which may add dopaminergic load and extend duration. Risk of serotonin synd…

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Library 4fma 4-Fluoromethamphetamine (also known as 4-FMA) is a lesser-known novel stimulant-entactogen substance of the amphetamine class. 4-FMA is che…

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Library 4methylamphetamine 4-Methylamphetamine (4-MA) or para-methylamphetamine, also known by the former proposed brand name Aptrol, is a stimulant and anorectic dru…

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Library 4methylephedrine 4-Methylephedrine (4-ME) is a phase-I reduction metabolite of the popular cathinone mephedrone (4-MMC). In users who take raw or poorly was…

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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 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 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 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 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 6apb 6-APB is a synthetic entactogen of the benzofuran class, structurally related to MDA. First synthesized in 1993 by David E. Nichols as a po…

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Library 6apdb 6-APDB was designed as a potentially less neurotoxic alternative to MDMA but may still pose neurotoxic and cardiotoxic risks with repeated…

Library acetylamphetamine N-acetylamphetamine is a member of amphetamines.

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Library acetylated_amphetamine

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Library alcamphor

Library aleph ALEPH is a psychedelic amphetamine of the substituted phenethylamine class, notable for being the first sulfur-containing phenethylamine ev…

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Library aleph2 ALEPH-2 is a rare psychedelic of the substituted amphetamine and phenethylamine classes, belonging to both the Aleph series and DOx family.…

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Library aleph6 ALEPH-6 is an extremely rare research chemical from Alexander Shulgin's PiHKAL with minimal human data. At 40mg oral, Shulgin described it…

Library amfecloral Amfecloral was marketed in the 1960s-70s as the anorectic Acutran and withdrawn worldwide by 1973. It functions as a prodrug that hydrolyze…