The molecule is conjugate base of N(omega)-phospho-L-arginine having anionic carboxy and phosphate groups and protonated amino and guanidino nitrogens. It is an organophosphate oxoanion and an alpha-amino-acid anion. It is a conjugate base of a N(omega)-phospho-L-arginine.
(2S)-5-[amino-(phosphonatoamino)methylidene]azaniumyl-2-azaniumylpentanoate