Compound

diphosphate(3-)

Inorganic salts of phosphoric acid that contain two phosphate groups.

Definition from MeSH (D011756), National Library of Medicine, read 2026-09-23. NLM revises MeSH; this copy may not reflect its current record.

CHEBI:33019ChEBI

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Structure

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A generated conformer of diphosphate(3-) — one low-energy arrangement PubChem computed, not a measured structure. Hydrogens are not drawn; the formula counts them.

Class: Inorganic compound, anion
Formula: HO7P2
Mass: 174.949 g/mol
Charge: -3
InChIKey: XPPKVPWEQAFLFU-UHFFFAOYSA-K
SMILES: O=P([O-])([O-])OP(=O)([O-])O
Look it up: ChEBI PubChem By InChIKey

Identity from ChEBI, geometry from PubChem. Not evidence.

Reactions

1,613 reactions

A common cofactor or currency species. Appears in 1,613 reactions — see the full list.

Other names

4 names

Resolves to: diphosphate(3-)

Also called: diphosphateHP2O7(3-)HP2O73−
Systematic name: hydrogen diphosphate