Term Name:	etidronic acid(2-)
Synonyms:	(1-hydroxyethane-1,1-diyl)bis[hydrogen (phosphonate)], etidronic acid dianion, hydroxyethylidenebisphosphonate
Definition:	An organophosphonate dianion resulting from the removal of a proton from one of the hydroxy groups of each of the phosphonic acid groups of etidronic acid. The major species at pH 7.3.
Ontology:	ChEBI [CHEBI:77356]  ( EBI )