SMILES: CC1=CC(=CC(=C1[O-])C(=O)[O-])/C(=C/2\\C=C(C(=O)C(=C2)C(=O)O)C)/C3=CC=CC=C3S(=O)(=O)[O-]
Description: The molecule is an organosulfonate oxoanion obtained by deprotonation of the sulfo and carboxy groups of 5-[(3-carboxy-5-methyl-4-oxocyclohexa-2,5-dien-1-ylidene)(2-sulfophenyl)methyl]-2-hydroxy-3-methylbenzoic acid. It is an organosulfonate oxoanion and a hydroxybenzoate. It is a conjugate base of a chromoxane cyanin R free acid.