5F-AMB is an novelty analogue of AB-PINACA with a systematic name of (R)-methyl 2-(1-(5-fluoropentyl)-1H-indazole-3-carboxamido)-3-methylbutanoate. The chemical formula for 5F-AMB is C19H26FN3O3 with a molecular weight of 363.43 and an exact mass of 363.20