CHEBI:29031 - phosphinic acid

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ChEBI Name phosphinic acid
ChEBI ID CHEBI:29031
Definition A phosphorus oxoacid that consists of a single pentavalent phosphorus covalently bound via single bonds to two hydrogens and a hydroxy group and via a double bond to an oxygen. The parent of the class of phosphinic acids.
Stars This entity has been manually annotated by the ChEBI Team.
Secondary ChEBI IDs CHEBI:8138, CHEBI:26042
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Formula H3O2P
Net Charge 0
Average Mass 65.99638
Monoisotopic Mass 65.987
InChI InChI=1S/H3O2P/c1-3-2/h3H2,(H,1,2)
InChIKey ACVYVLVWPXVTIT-UHFFFAOYSA-N
SMILES [H]OP([H])([H])=O
Roles Classification
Chemical Role(s): antioxidant
A substance that opposes oxidation or inhibits reactions brought about by dioxygen or peroxides.
inorganic acid
A Bronsted acid derived from one or more inorganic compounds. Inorganic acids (also known as mineral acids) form hydrons and conjugate base ions when dissolved in water.
(via pnictogen oxoacid )
Bronsted acid
A molecular entity capable of donating a hydron to an acceptor (Bronsted base).
(via oxoacid )
View more via ChEBI Ontology
ChEBI Ontology
Outgoing phosphinic acid (CHEBI:29031) has role antioxidant (CHEBI:22586)
phosphinic acid (CHEBI:29031) is a phosphinic acids (CHEBI:26044)
phosphinic acid (CHEBI:29031) is a phosphorus oxoacid (CHEBI:33457)
phosphinic acid (CHEBI:29031) is conjugate acid of phosphinate (CHEBI:29198)
Incoming (2S)-2-[3-(aminomethyl)phenyl]-3-[(S)-{(1R)-1-[(2,1,3-benzothiadiazol-4-ylsulfonyl)amino]-2-methylpropyl}(hydroxy)phosphoryl]propanoic acid (CHEBI:39758) has functional parent phosphinic acid (CHEBI:29031)
3-[hydroxy(oxido)phosphoranyl]pyruvic acid (CHEBI:18007) has functional parent phosphinic acid (CHEBI:29031)
hypophosphite (CHEBI:24759) has functional parent phosphinic acid (CHEBI:29031)
phosphinate (CHEBI:29198) is conjugate base of phosphinic acid (CHEBI:29031)
IUPAC Names
dihydridodioxophosphoric acid
dihydridohydroxidooxidophosphorus
hydrogen dihydridodioxophosphate(1−)
Synonyms Sources
[PH2(OH)O] MolBase
[PH2O(OH)] IUPAC
H2PO(OH) IUPAC
H3PO2 ChEBI
HPA ChEBI
HPH2O2 IUPAC
hydrophosphorous acid ChEBI
Hypophosphorous acid KEGG COMPOUND
Phosphinic acid KEGG COMPOUND
Database Links Databases
594 MolBase
C05339 KEGG COMPOUND
D02334 KEGG DRUG
Phosphinic_acid Wikipedia
View more database links
Registry Numbers Types Sources
25147 Gmelin Registry Number Gmelin
3600366 Reaxys Registry Number Reaxys
6303-21-5 CAS Registry Number KEGG COMPOUND
6303-21-5 CAS Registry Number ChemIDplus
Last Modified
08 August 2017