The molecule is an alpha-amino-acid anion obtained via deprotonation of the carboxy and phoisphate groups as well as protonation of the amino and guanidino groups of N-phospho-L-lombricine; major species at pH 7.3. It is an alpha-amino-acid anion and an organophosphate oxoanion. It is a conjugate base of a N-phospho-L-lombricine.
(2S)-3-[2-[amino-(phosphonatoamino)methylidene]azaniumylethoxy-oxidophosphoryl]oxy-2-azaniumylpropanoate