SMILES: C1=C(C2=C(N1)N=C(NC2=O)N)C(=O)[O-]
Description: The molecule is a monocarboxylic acid anion resulting from the removal of a proton from the carboxylic acid group of 7-carboxy-7-deazaguanine. The major form of 7-carboxy-7-deazaguanine at pH 7.3. It is a conjugate base of a 7-carboxy-7-deazaguanine.