ChemRxiv
June 9, 2026
Matthew Gardner, Alexander Power, Anca Frinculescu et al.
High-dose MDMA tablets and variable-purity cocaine and ketamine samples are commonly encountered by drug checking services and police forces in the United Kingdom and Europe. At the time of writing, there are few simpleto-operate field-portable technologies that provide semi-quantitative information on MDMA tablet dosage or cocaine and ketamine purity at the point of sampling. We previously...
ChemRxiv
March 2, 2026
William Charles Hosie, Artem Pyrozhok, Massimo Filgiomeni et al.
Clinical trials of psychedelics have shown preliminary promise for the treatment of psychiatric conditions such as major depressive disorder, substance use disorder, and treatment resistant depression.The most common psychedelic administration routes explored so far include intravenous injection, heated vapor inhalation, or a simple buffered salt solution administered to the nasal cavity.Given...
ChemRxiv
November 26, 2025
Anton A. Homon, P. V. Vara Prasad, Elham Pourian et al.
The recent resurgence in psychedelic research has increased demand for these molecules for clinical studies. Due to the differences between national regulations and considering the dominance of the American market and its continued prohibition of many such molecules, the commercial availability of many of these compounds remains poor. This has also inhibited research into developing scalable...
ChemRxiv
June 26, 2025
Anton A. Homon, Jaxon Laramie, John J. Hayward et al.
Bufotenin (also spelt as bufotenine) and its methylated derivative, 5-methoxy-N,N-dimethyltryptamine (5-MeO-DMT) are potent psychedelics (although the activity of the former is attenuated due to its low propensity to cross the blood-brain-barrier) that are found in many plants but also excreted by specific species of toads. The compounds are regulated differently around the world, and although...
ChemRxiv
February 27, 2025
William Charles Hosie, Mary Augustina Egbuta, Kasra Razmkhah et al.
Nanoformulation is often used to improve the solubility and uptake of bioactives; however, it also protects sensitive bioactives from chemical decomposition. We report a class of biocompatible emulsifiers created by conjugating hemp protein with green tea polyphenols. A simple pH-assisted coupling protocol was employed to synthesize covalent and non-covalent conjugates, which were then used to...
ChemRxiv
June 2, 2023
Samuel E. Williamson, Alexander M. Sherwood
1 citation
The Church of Psilomethoxin claims to produce a novel tryptamine by adding 5-MeO-DMT to the substrate of cultivated Psilocybe mushrooms, which is then biosynthesized into psilomethoxin, the church’s sacrament. In this study, we investigate the validity of this claim using comprehensive analytical techniques, namely ultra-performance liquid chromatography with high-resolution mass spectrometry...
ChemRxiv
February 7, 2023
Vito F. Palmisano, Claudio Agnorelli, David Erritzøe et al.
1 citation
Classic psychedelics are compounds that target the 5-hydroxytryptamine receptor type 2A (5-HT2AR), inducing profound changes in consciousness. Although these compounds most closely resemble the natural neurotransmitter serotonin, their therapeutic and psychoactive action is still not well understood. Therefore, a quantitative atomistic description of their interaction in the 5-HT2AR receptor is...
ChemRxiv
October 26, 2021
Alexzander Samuelsson, Eric Janusson, Sajni Shah et al.
2 citations
The alkaloid psilocybin (4-phosphoryloxy-N,N-dimethyltryptamine) and the neurologically active psilocin (4-hydroxy-N,N-dimethyltryptamine) are the foremost compounds of pharmaceutical interest in Psilocybe mushrooms. As these compounds are infrequently analyzed in analytical labs, validated methods for rapid purity analysis are lacking. Newfound therapeutic use has invigorated academic and...
ChemRxiv
March 19, 2020
Paola Rodrı́guez, Jessika Urbanavicius, José Pedro Prieto et al.
1 citation
Anecdotal reports and open label case studies in humans indicated that the psychedelic alkaloid ibogaine exert profound anti-addictive effects. Ample preclinical evidence demonstrated the efficacy of ibogaine, and its main metabolite noribogaine, in substance use disorder rodent models. In contrast to addiction research, depression-relevant effects of ibogaine or noribogaine in rodents have not...
ChemRxiv
October 29, 2018
Soledad Marton, Bruno González, Sebastián Rodríguez et al.
Ibogaine is a psychedelic alkaloid which has been subject of intense scientific research due to its reported ability to attenuate drug-seeking behavior. Recent work suggested that ibogaine effects on alcohol self-administration in rats was related to the release of Glial Cell Derived Neurotrophic Factor (GDNF) in the Ventral Tegmental Area (VTA), a mesencephalic region which hosts soma of...
ChemRxiv
Sarah A. Shuda
1 citation
Lysergic acid diethylamide (LSD) and analogs are psychedelic drugs commonly submitted to forensic chemistry laboratories. These drugs are often present on items of evidence at low concentrations, requiring sensitive analyses to positively identify their presence. The injection port of a gas chromatograph (GC) plays an important role in vaporizing and transferring substances to the column for...
ChemRxiv
Vito Federico Palmisano, Claudio Agnorelli, Andrea Fagiolini et al.
Renewed scientific interest in psychedelic compounds represents one of the most promising avenues for addressing the current burden of mental health disorders. Classic psychedelics are a group of compounds that exhibit structural similarities to the naturally occurring neurotransmitter serotonin (5-HT). Acting on the 5-HT type 2A receptors (5-HT2AR), psychedelics induce enduring...