SMILES: C1=CC2=C(C=C1S(=O)(=O)[O-])C(=C(C=C2[N+](=O)[O-])[N+](=O)[O-])[O-]
Description: The molecule is an organosulfonate oxoanion obtained by deprotonation of the sulfo and phenolic hydroxy groups of flavianic acid. It is an organosulfonate oxoanion and a phenolate anion. It is a conjugate base of a flavianic acid.