2C-T-16, also known as 4-allylthio-2,5-dimethoxyphenethylamine, is a lesser-known psychedelic drug. It was originally named by Alexander Shulgin as described in his book PiHKAL (Phenethylamines i Have Known And Loved), however while Shulgin began synthesis of this compound he only got as far as the nitrostyrene intermediate, and did not complete the final synthetic step.[1] Synthesis of 2C-T-16 was finally achieved by Daniel Trachsel some years later,[2] and it was subsequently reported as showing similar psychedelic activity to related compounds, with a dose range of 10–25mg and a duration of 4–6hours,[3]:788–789 making it around the same potency as the better-known saturated analogue 2C-T-7, but with a significantly shorter duration of action. Binding studies in vitro showed 2C-T-16 to have a binding affinity of 44nM at 5-HT2A and 15nM at 5-HT2C.[3]:791 2C-T-16 and related derivatives are potent partial agonists of the 5-HT1A, 5-HT2A, 5-HT2B and 5-HT2C receptors and induce a head-twitch response in mice.[4]
↑ Daniel Trachsel (2003). "Synthesis of novel (phenylalkyl)amines for the investigation of structure-activity relationships. Part 2. 4-Thio-substituted [2-(2,5-dimethoxyphenyl)ethyl]amines (=2,5-dimethoxybenzeneethanamines)". Helvetica Chimica Acta. 86 (7): 2610–2619. doi:10.1002/hlca.200390210.
1 2 Daniel Trachsel; David Lehmann & Christoph Enzensperger (2013). Phenethylamine: Von der Struktur zur Funktion. Nachtschatten Verlag AG. ISBN978-3-03788-700-4.
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