SMILES: C1=CC(=O)C(=N)C(=C1)C(=O)O
Description: The molecule is a cyclohexadienecarboxylic acid having the C=C double bonds at the 1- and 3-positions, the carboxy group at the 1-position, an oxo group at the 5-position and an imino group at the 6-position. It is a cyclohexadienecarboxylic acid and an alpha,beta-unsaturated monocarboxylic acid. It is a conjugate acid of a 6-imino-5-oxocyclohexa-1,3-diene-1-carboxylate.