The molecule is an amino dicarboxylic acid that is 4-aminohepta-2,4-dienoic acid which is substituted at position 6 by an oxo group [the (2Z,4E) isomer]. It is an amino dicarboxylic acid, an enamine and an oxo dicarboxylic acid. It is a conjugate acid of a (2Z,4E)-4-amino-6-oxohepta-2,4-dienedioate.
(2Z,4E)-4-amino-6-oxohepta-2,4-dienedioic acid