CHEBI:29205 - diphosphonic acid

ChEBI IDCHEBI:29205
ChEBI Namediphosphonic acid
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Last Modified8 August 2017
SubmitterKirill Degtyarenko
DownloadsMolfile
FormulaH4O5P2
Net Charge0
Average Mass145.975
Monoisotopic Mass145.95340
SMILES[H]P(=O)(O)OP([H])(=O)O
InChIInChI=1S/H4O5P2/c1-6(2)5-7(3)4/h6-7H,(H,1,2)(H,3,4)
InChIKeyXQRLCLUYWUNEEH-UHFFFAOYSA-N
Roles Classification
Chemical Roles:
inorganic acid  A Brønsted 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.
Bronsted acid  A molecular entity capable of donating a hydron to an acceptor (Brønsted base).
Bronsted acid  A molecular entity capable of donating a hydron to an acceptor (Brønsted base).
ChEBI Ontology
Outgoing Relation(s)
diphosphonic acid (CHEBI:29205) is a acyclic phosphorus acid anhydride (CHEBI:37786)
diphosphonic acid (CHEBI:29205) is a phosphorus oxoacid (CHEBI:33457)
diphosphonic acid (CHEBI:29205) is conjugate acid of diphosphonate(1−) (CHEBI:33463)
Incoming Relation(s)
diphosphonate(1−) (CHEBI:33463) is conjugate base of diphosphonic acid (CHEBI:29205)
IUPAC Names 
μ-oxido-bis(hydridohydroxidooxidophosphorus)
diphosphonic acid
Synonyms  Source
H2P2H2O5IUPAC
[(OH)P(H)(O)OP(H)(O)(OH)]IUPAC
pyrophosphonic acidChemIDplus
Registry NumbersSources
Gmelin:82148Gmelin
CAS:36465-90-4ChemIDplus