SMILES: C1=CC=C2C(=C1)C(=CN2)C3=C(NC(=C3)C4=CNC5=C4C=C(C=C5)[O-])C(=O)O
Description: The molecule is a monocarboxylic acid anion that is the conjugate base of protoviolaceinic acid, resulting from the removal of the proton from the carboxy group. Major structure at pH 7.3. It is a conjugate base of a protoviolaceinic acid.