The molecule is an L-alpha-amino acid anion that is the conjugate base of L-arginine; obtained by deprotonation of the carboxy group. It is an argininate and a L-alpha-amino acid anion. It is a conjugate base of a L-arginine. It is an enantiomer of a D-argininate.
(2S)-2-amino-5-(diaminomethylideneamino)pentanoate