Forensic science international
January 1, 2021
Vinícius L Meira, Adriana S De Oliveira, Luciana S A Cohen et al.
25 citations
Between 2006 and 2019, blotter papers seized by police in Rio de Janeiro State, Brazil, were chemically and geographically mapped. Before 2014, most contained LSD and were concentrated in the metropolitan region. From 2014 to 2017, NBOMe-family compounds became dominant during a surge in seizures. NBOH compounds first appeared in 2016 in coastal tourist areas, with over 1300 items seized in 2017 alone. Only one synthetic cannabinoid was found. The most common new psychoactive substances were synthetic phenethylamines from the 25I-NBOH and 25I-NBOMe families. Chemical and statistical analyses revealed shifting drug profiles and movement patterns across the state.
Química Nova
May 9, 2016
Pâmella F. Dos Santos, Lindamara M. Souza, Bianca B. Merlo et al.
13 citations
A new designer drug, 25I-NBOMe, was chemically profiled using multiple analytical techniques. Thin layer chromatography identified spots for 25C-, 25B-, and 25I-NBOMe compounds, all with the same retention factor of about 0.50, but no spots for 2,5-dimethoxy-4-bromoamphetamine, 2,5-dimethoxy-4-chloroamphetamine, or lysergic acid diethylamide. ATR-FTIR preserved the material's physical-chemical properties, while GC-MS and ESI-MS offered better analytical selectivity. ESI(+)FT-ICR MS determined the exact mass (m/z 428.1706 for [M + H]+), molecular formula (C18H22INO3), degree of unsaturation (DBE = 8), and chemical structure via collision-induced dissociation. ATR-FTIR and CID results suggested the presence of isomers, with a second structure proposed as an isomer of 25I-NBOMe.
Journal of forensic sciences
July 1, 2024
Ananda da Silva Antonio, Gleicielle Tozzi Wurzler, Cecília de Andrade Bhering et al.
4 citations
Chemical profiles of ecstasy tablets seized in Rio de Janeiro state, Brazil, between 2012 and 2021 reveal MDMA and clobenzorex as the main active ingredients, with less common occurrences of MDA, MDEA, and 2C-B. A total of 27 combinations of cutting agents, including caffeine, ephedrine, and anesthetics, were identified. The occurrence of mega-events in the region altered the chemical fingerprints of the tablets. Samples containing clobenzorex appeared throughout the period in areas near highways, suggesting use primarily by truck drivers. These findings can assist police intelligence in anticipating illicit market changes during major events and identifying trafficking routes.