Compound

hydrogencarbonate

Inorganic salts that contain the -HCO3 radical. They are an important factor in determining the pH of the blood and the concentration of bicarbonate ions is regulated by the kidney. Levels in the blood are an index of the alkali reserve or buffering capacity.

Definition from MeSH (D001639), National Library of Medicine, read 2026-09-23. NLM revises MeSH; this copy may not reflect its current record.

CHEBI:17544ChEBI

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Structure

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

Class: Organic compound, anion
Formula: CHO3
Mass: 61.016 g/mol
Charge: -1
InChIKey: BVKZGUZCCUSVTD-UHFFFAOYSA-M
SMILES: O=C([O-])O
Look it up: ChEBI PubChem By InChIKey

Identity from ChEBI, geometry from PubChem. Not evidence.

Reactions

364 reactions

A common cofactor or currency species. Appears in 364 reactions — see the full list.

Other names

18 names

Resolves to: hydrogencarbonate

Also called: [CO2(OH)](-)[CO2(OH)]−Acid carbonateBicarbonateBICARBONATE IONHCO3-HCO3(-)HCO3−hydrogen carbonate
Systematic name: hydrogen(trioxidocarbonate)(1-)hydrogen(trioxidocarbonate)(1−)hydrogencarbonate(1-)hydrogencarbonate(1−)hydrogentrioxocarbonate(1-)hydrogentrioxocarbonate(1−)hydrogentrioxocarbonate(IV)hydroxidodioxidocarbonate(1-)hydroxidodioxidocarbonate(1−)