CHEBI:44976 - phosphonic acid

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ChEBI Name phosphonic acid
ChEBI ID CHEBI:44976
Definition A phosphorus oxoacid that consists of a single pentavalent phosphorus covalently bound via single bonds to a single hydrogen and two hydroxy groups and via a double bond to an oxygen. The parent of the class of phosphonic acids.
Stars This entity has been manually annotated by the ChEBI Team.
Secondary ChEBI IDs CHEBI:26067
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Formulae H3O3P
H3O3P
Net Charge 0
Average Mass 81.99580
Monoisotopic Mass 81.982
InChI InChI=1S/H3O3P/c1-4(2)3/h4H,(H2,1,2,3)
InChIKey ABLZXFCXXLZCGV-UHFFFAOYSA-N
SMILES OP(O)=O
Roles Classification
Chemical Role(s): 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 )
Biological Role(s): fungicide
A substance used to destroy fungal pests.
Application(s): fungicide
A substance used to destroy fungal pests.
View more via ChEBI Ontology
ChEBI Ontology
Outgoing phosphonic acid (CHEBI:44976) has role fungicide (CHEBI:24127)
phosphonic acid (CHEBI:44976) is a phosphonic acids (CHEBI:26069)
phosphonic acid (CHEBI:44976) is a phosphorus oxoacid (CHEBI:33457)
phosphonic acid (CHEBI:44976) is conjugate acid of phosphonate(1−) (CHEBI:33462)
phosphonic acid (CHEBI:44976) is tautomer of phosphorous acid (CHEBI:36361)
Incoming ((2S,3aS,4R,6S)-4-(hydroxymethyl)-6-(4-oxo-4,5-dihydro-3H-pyrrolo[3,2-d]pyrimidin-7-yl)tetrahydrofuro[3,4-d][1,3]dioxol-2-yl)methylphosphonic acid (CHEBI:44755) has functional parent phosphonic acid (CHEBI:44976)
(2-aminoethyl)phosphonic acid (CHEBI:15573) has functional parent phosphonic acid (CHEBI:44976)
(R)-(1-aminoethyl)phosphonic acid (CHEBI:4075) has functional parent phosphonic acid (CHEBI:44976)
(S)-(1-aminoethyl)phosphonic acid (CHEBI:136675) has functional parent phosphonic acid (CHEBI:44976)
(aminomethyl)phosphonic acid (CHEBI:28812) has functional parent phosphonic acid (CHEBI:44976)
({[(1R,2R)-2-(uracil-1-yl)cyclopentyl]oxy}methyl)phosphonic acid (CHEBI:42248) has functional parent phosphonic acid (CHEBI:44976)
({[(2Z)-2-(2-amino-1,3-thiazol-4-yl)-2-(methoxyimino)acetyl]amino}methyl)phosphonic acid (CHEBI:45164) has functional parent phosphonic acid (CHEBI:44976)
1-amino-1-phenylmethyl phosphonic acid (CHEBI:86535) has functional parent phosphonic acid (CHEBI:44976)
1-aminocyclopropylphosphonic acid (CHEBI:30987) has functional parent phosphonic acid (CHEBI:44976)
1-deoxy-1-{[2,6-dihydroxy-5-(5-phosphonopentyl)pyrimidin-4-yl]amino}-D-ribitol (CHEBI:43332) has functional parent phosphonic acid (CHEBI:44976)
1-deoxy-1-{[2,6-dioxo-5-(5-phosphonopentyl)-1,2,3,6-tetrahydropyrimidin-4-yl]amino}-D-ribitol (CHEBI:40193) has functional parent phosphonic acid (CHEBI:44976)
1-hydroxy-2-aminoethylphosphonic acid (CHEBI:631) has functional parent phosphonic acid (CHEBI:44976)
1-{2-deoxy-3,5-O-[phenyl(phosphono)methylidene]-β-L-threo-pentofuranosyl}thymine (CHEBI:42198) has functional parent phosphonic acid (CHEBI:44976)
2-amino-3-phosphonopropanoic acid (CHEBI:28388) has functional parent phosphonic acid (CHEBI:44976)
2-amino-5-phosphonopentanoic acid (CHEBI:138644) has functional parent phosphonic acid (CHEBI:44976)
2-dimethylaminoethylphosphonic acid (CHEBI:7265) has functional parent phosphonic acid (CHEBI:44976)
2-hydroxyethylphosphonic acid (CHEBI:1159) has functional parent phosphonic acid (CHEBI:44976)
2-hydroxypropylphosphonic acid (CHEBI:1171) has functional parent phosphonic acid (CHEBI:44976)
2-methylaminoethylphosphonic acid (CHEBI:7328) has functional parent phosphonic acid (CHEBI:44976)
2-trimethylaminoethylphosphonic acid (CHEBI:7347) has functional parent phosphonic acid (CHEBI:44976)
3-phosphonopyruvic acid (CHEBI:30935) has functional parent phosphonic acid (CHEBI:44976)
N-[(R)-4-phosphopantothenoyl]-L-cysteine (CHEBI:15769) has functional parent phosphonic acid (CHEBI:44976)
[(1R)-1-{[N-(furan-2-ylcarbonyl)-L-leucyl]amino}-2-(1H-indol-3-yl)ethyl]phosphonic acid (CHEBI:42450) has functional parent phosphonic acid (CHEBI:44976)
[(1R)-2-(3-{methyl[1-(naphthalen-2-ylcarbonyl)piperidin-4-yl]carbamoyl}naphthalen-2-yl)-1-naphthalen-1-yl-2-oxoethyl]phosphonic acid (CHEBI:44489) has functional parent phosphonic acid (CHEBI:44976)
[2-(3-dibenzo[b,d]furan-4-ylphenyl)-1-hydroxyethane-1,1-diyl]bis(phosphonic acid) (CHEBI:40875) has functional parent phosphonic acid (CHEBI:44976)
[{4-[(2R,4E)-2-(1,3-benzothiazol-2-yl)-2-(1H-benzotriazol-1-yl)-5-phenylpent-4-en-1-yl]phenyl}(difluoro)methyl]phosphonic acid (CHEBI:44768) has functional parent phosphonic acid (CHEBI:44976)
fosfomycin (CHEBI:28915) has functional parent phosphonic acid (CHEBI:44976)
GS-8373 (CHEBI:47631) has functional parent phosphonic acid (CHEBI:44976)
hydroxymethylphosphonic acid (CHEBI:5810) has functional parent phosphonic acid (CHEBI:44976)
methyl phosphonate (CHEBI:299045) has functional parent phosphonic acid (CHEBI:44976)
methylphosphonic acid (CHEBI:45129) has functional parent phosphonic acid (CHEBI:44976)
phosphonic acid derivative (CHEBI:37588) has functional parent phosphonic acid (CHEBI:44976)
phosphonoacetaldehyde (CHEBI:18124) has functional parent phosphonic acid (CHEBI:44976)
phosphonoacetic acid (CHEBI:15732) has functional parent phosphonic acid (CHEBI:44976)
phosphonoformic acid (CHEBI:127780) has functional parent phosphonic acid (CHEBI:44976)
glyphosate (CHEBI:27744) is a phosphonic acid (CHEBI:44976)
phosphonate(1−) (CHEBI:33462) is conjugate base of phosphonic acid (CHEBI:44976)
phosphono group (CHEBI:48108) is substituent group from phosphonic acid (CHEBI:44976)
phosphorous acid (CHEBI:36361) is tautomer of phosphonic acid (CHEBI:44976)
IUPAC Names
dihydrogen hydridotrioxophosphate(2−)
hydridodihydroxidooxidophosphorus
hydridotrioxophosphoric(2−) acid
Synonyms Sources
(HO)2HPO NIST Chemistry WebBook
[PHO(OH)2] IUPAC
H2PHO3 IUPAC
H3PO3 ChEBI
HPO(OH)2 IUPAC
Phosphite KEGG COMPOUND
Phosphonate KEGG COMPOUND
phosphonic acid ChEBI
Phosphonic acid KEGG COMPOUND
Phosphonsäure ChEBI
Database Links Databases
C06701 KEGG COMPOUND
Phosphonic_acid Wikipedia
PHS PDBeChem
View more database links
Registry Numbers Types Sources
1209272 Reaxys Registry Number Reaxys
13598-36-2 CAS Registry Number ChemIDplus
13598-36-2 CAS Registry Number NIST Chemistry WebBook
1619 Gmelin Registry Number Gmelin
Last Modified
08 August 2017