The molecule is an N(beta)-acyl-L-2,3-diaminopropionic acid in which the acyl group is oxalyl. It derives from a propionic acid. It is a conjugate acid of a N(3)-(carboxylatoformyl)-L-2,3-diaminopropionate(1-).
(2S)-2-amino-3-(oxaloamino)propanoic acid