The molecule is the N(5)-[(S)-1-carboxyethyl] derivative of L-ornithine. It is a L-ornithine derivative and a non-proteinogenic alpha-amino acid. It is a tautomer of a N(5)-(L-1-carboxyethyl)-L-ornithine dizwitterion.
(2S)-2-amino-5-[[(1S)-1-carboxyethyl]amino]pentanoic acid