SMILES: C1(=C(C(=O)C(=C(C1=O)O)O)O)O
Description: The molecule is a hydroxybenzoquinone in which all four protons of the benzoquinone structure are substituted by hydroxy groups. A systemic keratolytic, it is normally supplied as its hydrate (CHEBI:137471). It has a role as a keratolytic drug.