Library sesamol Sesamol is a natural organic compound which is a component of sesame seeds and sesame oil, with anti-inflammatory, antioxidant, antidepress…

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Library sl164 Case reports and user accounts highlight a pronounced tendency toward myoclonic twitching and seizures, especially above approximately 200…

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Library sleeping_tablet

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Library spirobrorphine Spirobrorphine is a synthetic opioid chemical compound which has been sold as a designer drug, first reported in the USA in February 2026.…

Library spirochlorphine Marketed only as a research chemical with potency reported as 2-5 times that of fentanyl. Reported solubility approximately 3 mg/mL in 10%…

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Library sr14968 Sold exclusively as a research chemical with no clinical trials in humans. Despite biased agonist properties in vitro, behaves more like a…

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Library sr17018 Sold solely as a research chemical with no quality control or clinical data in humans. SR-17018 is not orally bioavailable when dissolved i…

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Library suboxone Buprenorphine/naloxone, sold under the brand name Suboxone among others, is a fixed-dose combination medication that includes buprenorphine…

Library sufentanil Sufentanil, also known as sufentanyl and by the brand name Sufenta, is an extremely potent synthetic anilidopiperidine opioid analgesic. Su…

Library tapentadol Tapentadol is a centrally-acting synthetic opioid analgesic of the phenylpropylaminopentane class. First approved by the FDA in 2008, it po…

Library temazepam Temazepam is a short-acting benzodiazepine that produces sedative, hypnotic, anxiolytic, muscle relaxant, and anticonvulsant effects. Altho…

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Library tetrahydrofuranfentanyl An analogue of fentanyl that is unknown in literature. Is most likely less potent than most other analogues. Yet very few reports are aroun…

Library tetrahydropalmatine Tetrahydropalmatine (THP) is an isoquinoline alkaloid found in several different plant species, mainly in the genus Corydalis, but also in…

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Library tetramethylcyclopropanefentanyl

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Library tetramethylfentanyl

Library tetrazepam A benzodiazepine that has most of the properties of more common benzodiazepines. Yet was taken off the market in 2013. Has been noted to be…

Library thebaine Thebaine (paramorphine), also known as codeine methyl enol ether, is an opiate alkaloid, its name coming from the Greek Θῆβαι, Thēbai (Theb…

Library thionordazepam

Library thiopental Thiopental is an ultrashort-acting barbiturate of the thiobarbituric acid class, primarily used in clinical settings for the induction of g…

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Library thiophenefentanyl