F-Phenibut Free Base
$ 61.56
F-Phenibut (Fluorophenibut) FAA (freebase) is the free amino acid form of fluorinated phenibut (4-amino-3-(4-fluorophenyl)butanoic acid). Compared with its hydrochloride salt, the FAA/freebase form is often chosen in research when pH, solubility, or formulation-specific variables must be tightly controlled. It is used in studies exploring the impact of halogen substitution on GABAergic ligands, including receptor affinity, membrane permeability, and pharmacokinetic behavior in experimental models.