The molecule is a D-alpha-amino acid zwitterion that is D-octopine in which both carboxy groups are anionic and the secondary amino and guanidine imino functions are protonated. It is a conjugate acid of a D-octopine(1-). It is a tautomer of a D-octopine.
(2S)-2-[[(1R)-1-carboxylatoethyl]azaniumyl]-5-(diaminomethylideneazaniumyl)pentanoate