Order 5F-ADB Powder UK Order 5F-ADB Powder UK Online. Product name: 5F – ADB Cas NO: 1838134-16-9 Systematic ( IUPAC ) name: N-[[1-(5-fluoropentyl)-1H-indazol-3-yl]carbonyl]-3-methyl-D-valine, methyl ester MolecularFormula: C20H28FN3O3 Appearance: white powder Purity: Above 99.5%