The molecule is a dicarboxylic acid monoanion that is the conjugate base of 2-amino-3-(3-oxoprop-1-enyl)but-2-enedioic acid and the major microspecies at pH 7.3 (according to Marvin v 6.2.0.). It is a conjugate base of a 2-amino-3-(3-oxoprop-1-enyl)but-2-enedioic acid. It is a conjugate acid of a 2-amino-3-(3-oxoprop-1-enyl)but-2-enedioate.
(E,2Z)-2-[amino(carboxy)methylidene]-5-oxopent-3-enoate