SMILES: C1=CC(=C(C=C1O)S(=O)(=O)O)O
Description: The molecule is a dihydroxybenzenesulfonic acid that is hydroquinone in which one of the phenyl hydrogens is substituted by a sulfonic acid group. It has a role as a metabolite. It is a dihydroxybenzenesulfonic acid and a member of hydroquinones. It derives from a hydroquinone.