SMILES: OP(=O)([O-])OP(=O)(O)[O-]
Description: The molecule is a divalent inorganic anion obtained by removal of both protons from diphosphoric acid. It is a divalent inorganic anion and a diphosphate ion. It is a conjugate base of a diphosphate(1-). It is a conjugate acid of a diphosphate(3-).