polyphosphate (O3P)nHO (Phosphate)n (Phosphate)n+1 (Phosphate)n-1 0.0 CHEBI:14861 CHEBI:16838 CHEBI:18842 CHEBI:63301 CHEBI:8315 KEGG:C00404 MetaCyc:Polyphosphates The phosphorus oxoanion formed from polyphosphoric acid by proton loss from each of the phosphate units. The major species at pH 7.3. chebi_ontology polyphosphate phosphorus oxoanion