SMILES: C1=CC=C2C(=C1)C(=O)C3=C(C2=O)C(=C(C=C3NC4=CC(=C(C=C4)S(=O)(=O)[O-])NC5=NC(=NC(=N5)NC6=CC(=CC=C6)S(=O)(=O)[O-])Cl)S(=O)(=O)[O-])N
Description: The molecule is the organosulfonate oxoanion that is the trianion of Reactive Blue 5, formed by loss of a proton from each of the sulfo groups; major species at pH 7.3. It is a conjugate base of a Reactive Blue 5.