BUY 5F-AKB48 POWDER (also known as 5F-AKB-48 or 5F-APINACA) is an indazole-based synthetic cannabinoid that has been sold online as a designer *****. Structurally it closely resembles cannabinoid compounds from patent WO 2003/035005 but with a 5-fluoropentyl chain on the indazole 1-position, and 5F-APINACA falls within the claims of this patent, as despite not being disclosed as an example, it is very similar to the corresponding pentanenitrile and 4-chlorobutyl compounds which are claimed as examples 3 and 4. In the United States, 5F-AKB48 is a Schedule I controlled substance.