1,3-Propanediaminium methanesulfonate [(PDA)(MeSO3)] was synthesized as the first nanoaliphatic ammonium salt via a safe and simple chemical route in aqueous media. [(PDA)(MeSO3)] ammonium salt was characterized by XRD, TEM, SEM, EDS, DLS, AFM, 1H NMR, 13C NMR, FT-IR, TG, and elemental analysis. (255 characters)