The molecule is a dicarboxylic acid monoanion that is the conjugate base of iminoaspartic acid and the major microspecies at pH 7.3 (according to Marvin v 6.2.0.). It is a conjugate base of an iminoaspartic acid. It is a conjugate acid of an iminoaspartate.
4-hydroxy-3-imino-4-oxobutanoate