Tail less precursors in synthetic cannabinoid production: investigating a clandestine laboratory, seized samples, and CB1 activity Archives of Toxicology Springer Nature Link KFx Drug Consultancy Initiative Learning of Substance Elf Bar AF5000 Prefilled Pod Eco Smok Vape Store 5F MDMB PINACA (5F ADB) acetonitrile 100ug mL, certified reference material, ampule 1mL 1838134 16 9 Pharmacology of Valinate and tert Leucinate Synthetic Cannabinoids 5F AMBICA, 5F AMB, 5F ADB, AMB FUBINACA, MDMB FUBINACA, MDMB CHMICA, and Their Analogues ACS Chemical Neuroscience