Term Name:	diphosphonate(2-)
Synonyms:	[O2P(H)OP(H)(O)2](2-), diphosphonate, mu-oxido-bis(hydridodioxidophosphate)(2-), P2H2O5(2-)
Definition:	A divalent inorganic anion obtained by removal of both protons from diphosphonic acid.
Ontology:	ChEBI [CHEBI:29262]  ( EBI )