SMILES: C1=CC2=C(C=C1O)OC(=O)C(=C2[O-])N
Description: The molecule is an organic anion that is the conjugate base of 3-amino-4,7-dihydroxycoumarin, obtained by selective deprotonation of the 7-hydroxy group It is a conjugate base of a 3-amino-4,7-dihydroxycoumarin.